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Some Portions of Computer Running Slow (Specifically Graphics)

- by Mike Gates

I noticed that a few things are running slow today on my Windows 7 laptop. Specifically, they are: Opening and closing windows takes several seconds for the animation to complete. Windows media player opens fine, but the movies are very laggy MMORPG's, such as RuneScape, are extremely laggy When waking my computer from sleep mode, after entering my password, my desktop takes about 3 seconds to fade in Other than those, everything runs at a normal speed. Things I've done that maybe contributed to this problem: Changed the graphics processor (by plugging in/unplugging the charger) [however, no matter how I change the graphics, I'm still getting this lagginess] Installed AdBlock, a Firefox addon [I recently removed it, and I'm still experiencing this problem] Went into Advanced System Settings, Clicked Settings, and unchecked a few visual things (such as the animation for opening and closing windows) [sure, this got rid of the opening/closing windows lag, but I like that little animation - plus that leaves all the other lag problems I'm experiencing] So, does anyone have any ideas/fixes? If so, please respond. Thank you. Some Other Information: I'm on a HP Pavillion dv7 laptop, 4285 Entertainment PC, with: intel CORE i5 inside, ATI Mobility Radeon Premium Graphics, Microsoft DirectX11 Opening and closing of windows: Defined as opening a program (i.e. Firefox) or closing it by hitting the X in the upper-right hand corner. Lately, the animation for opening and closing windows (which is simply either growing from the icon from the taskbar to fill the screen, or shrinking from the screen down towards the icon on the toolbar.) This problem also occurs for minimizing/maximizing windows. Very laggy movies: defined as .avi movie files saved to My Documents which skips several frames per second and seemingly slows down the movie as a whole Extremely laggy games: I tried RuneScape today, and movement in the game was at least 10x slower than it ever has been, even when playing on the lowest detail/graphics Desktop taking 3 seconds to fade in after sleep: in this scenario, I had no other programs running visibly. The computer generally fades to black from the password screen to the desktop in about 1 second, normally. However, it is now taking 3 or more seconds.

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SSH very slow when connecting from external [closed]

- by wnstnsmth

Possible Duplicate: ssh delay when connecting We have a CentOS server that we use for internal testing purposes, which has sshd enabled. When I (as a developer) am at the company, I use ssh [email protected] to connect to it - and it works flawlessly. Now, in order to work from home, accessing the server via the company's static IP, we set up another port for ssh, 2020. So I execute ssh -p 2020 [email protected] and am immediately granted for a password. After entering the password, it takes up to 30 seconds until I can access the server. Same is with SFTP (i.e. uploading files takes about 30 seconds until it begins to transfer). As you can imagine, if you have to regularly upload files to a webserver via SFTP, this is very tedious. So I looked at similar questions and thus edited the sshd_config file on the server, setting UseDNS to "no" and GSSAPIAuthentication to "no" (this one also in ssh_config on the client) - it did not work.. Please have a look at the -vvv output when externally accessing the server: ssh -p 2020 -vvv [email protected] PasteBin: ssh What could it be? Do you need more info?

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I am getting an error with a oneToMany association when using annotations with gilead for hibernate

- by user286630

Hello Guys I'm using Gilead to persist my entities in my GWT project, im using hibernate annotations aswell. my problem is on my onetomany association.this is my User class that holds a reference to a list of FileLocations @Entity @Table(name = "yf_user_table") public class YFUser implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "user_id",nullable = false) private int userId; @Column(name = "username") private String username; @Column(name = "password") private String password; @Column(name = "email") private String email; @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinColumn(name="USER_ID") private List fileLocations = new ArrayList(); This is my file location class @Entity @Table(name = "fileLocationTable") public class FileLocation implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "locationId", updatable = false, nullable = false) private int ieId; @Column (name = "location") private String location; @ManyToOne(fetch=FetchType.LAZY) @JoinColumn(name="USER_ID", nullable=false) private YFUser uploadedUser; When i persist this data in a normal desktop application, it works fine , creates the tables and i can add and store data to it. but when i try to persist the data in my gwt application i get errors i will show them lower. this is my ServiceImpl class that extends PersistentRemoteService. public class TestServiceImpl extends PersistentRemoteService implements TestService { public static final String SESSION_USER = "UserWithinSession"; public TestServiceImpl(){ HibernateUtil util = new HibernateUtil(); util.setSessionFactory(com.example.server.HibernateUtil .getSessionFactory()); PersistentBeanManager pbm = new PersistentBeanManager(); pbm.setPersistenceUtil(util); pbm.setProxyStore(new StatelessProxyStore()); setBeanManager(pbm); } @Override public String registerUser(String username, String password, String email) { Session session = com.example.server.HibernateUtil.getSessionFactory().getCurrentSession(); session.beginTransaction(); YFUser newUser = new YFUser(); newUser.setUsername(username);newUser.setPassword(password);newUser.setEmail(email); session.save(newUser); session.getTransaction().commit(); return "Thank you For registering "+ username; } this is the error that im am getting. the error goes away when i remove my onetoManyRelationship and builds my session factory when i put it in , it on the line of buildsessionfactory in hibernate Util that it throws this exception. my hibernate util class is ok also. this is the error java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z Mar 24, 2010 10:03:22 PM org.hibernate.cfg.annotations.Version <clinit> INFO: Hibernate Annotations 3.5.0-Beta-4 Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Environment <clinit> INFO: Hibernate 3.5.0-Beta-4 Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Environment <clinit> INFO: hibernate.properties not found Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Environment buildBytecodeProvider INFO: Bytecode provider name : javassist Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Environment <clinit> INFO: using JDK 1.4 java.sql.Timestamp handling Mar 24, 2010 10:03:22 PM org.hibernate.annotations.common.Version <clinit> INFO: Hibernate Commons Annotations 3.2.0-SNAPSHOT Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Configuration configure INFO: configuring from resource: /hibernate.cfg.xml Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Configuration getConfigurationInputStream INFO: Configuration resource: /hibernate.cfg.xml Mar 24, 2010 10:03:22 PM org.hibernate.cfg.Configuration doConfigure INFO: Configured SessionFactory: null Mar 24, 2010 10:03:22 PM org.hibernate.cfg.search.HibernateSearchEventListenerRegister enableHibernateSearch INFO: Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled. Mar 24, 2010 10:03:22 PM org.hibernate.cfg.AnnotationBinder bindClass INFO: Binding entity from annotated class: com.example.client.Entity1 Mar 24, 2010 10:03:22 PM org.hibernate.cfg.annotations.EntityBinder bindTable INFO: Bind entity com.example.client.Entity1 on table entityTable1 Mar 24, 2010 10:03:22 PM org.hibernate.cfg.AnnotationBinder bindClass INFO: Binding entity from annotated class: com.example.client.YFUser Mar 24, 2010 10:03:22 PM org.hibernate.cfg.annotations.EntityBinder bindTable INFO: Bind entity com.example.client.YFUser on table yf_user_table Initial SessionFactory creation failed.java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z [WARN] Nested in javax.servlet.ServletException: init: java.lang.ExceptionInInitializerError at com.example.server.HibernateUtil.<clinit>(HibernateUtil.java:38) at com.example.server.TestServiceImpl.<init>(TestServiceImpl.java:29) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39 ) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:308) at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153) at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:463) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) Caused by: java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1642) at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:772) at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:629) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:350) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1373) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:973) at com.example.server.HibernateUtil.<clinit>(HibernateUtil.java:33) ... 26 more [WARN] Nested in java.lang.ExceptionInInitializerError: java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1642) at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:772) at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:629) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:350) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1373) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:973) at com.example.server.HibernateUtil.<clinit>(HibernateUtil.java:33) at com.example.server.TestServiceImpl.<init>(TestServiceImpl.java:29) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:308) at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153) at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:463) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

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How to fix - Parse error: syntax error, unexpected T_CLASS

- by user557015

Hi, I'm new to PHP, and i'm making a forum. all the files work except one file, add_topic.php. It gives me an error saying: Parse error: syntax error, unexpected T_CLASS in /home/a3885465/public_html/add_topic.php on line 25 I know it is probably on the lines: </span>}<span class="s4"><br> </span>else{<span class="s4"><br> </span>echo "ERROR";<span class="s4"><br> </span>}<span class="s4"><br> </span>mysql_close();<span class="s4"><br> but the whole code is below just in case. If you have any idea, it would be really appreciated, thanks! The Code for add_topic.php <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="Content-Style-Type" content="text/css"> <title></title> <meta name="Generator" content="Cocoa HTML Writer"> <meta name="CocoaVersion" content="1038.32"> <style type="text/css"> p.p1 {margin: 0.0px 0.0px 12.0px 0.0px; font: 12.0px Verdana; color: #009901} p.p2 {margin: 0.0px 0.0px 12.0px 0.0px; font: 12.0px Verdana; color: #3a00ff} span.s1 {color: #3a00ff} span.s2 {font: 12.0px 'Lucida Grande'; color: #3a00ff} span.s3 {font: 13.0px Courier; color: #404040} span.s4 {font: 12.0px 'Lucida Grande'} span.s5 {color: #009901} td.td1 {width: 566.0px; margin: 0.5px 0.5px 0.5px 0.5px} </style> </head> <body> <table cellspacing="0" cellpadding="0"> <tbody> <tr> <td valign="middle" class="td1"> <p class="p1"><span class="s1"></span><?php<span class="s2"><br> </span><span class="s1">$host="</span><span class="s3">"host"</span><span class="s1">";</span> // Host name <span class="s4"><br> </span><span class="s1">$username="</span><span class="s3">username</span><span class="s1">";</span> // Mysql username <span class="s4"><br> </span><span class="s1">$password="password";</span> // Mysql password <span class="s4"><br> </span><span class="s1">$db_name="</span><span class="s3">database_name</span><span class="s1">";</span> // Database name <span class="s4"><br> </span><span class="s1">$tbl_name="forum_question";</span> // Table name</p> <p class="p2"><span class="s5">// Connect to server and select database.</span><span class="s4"><br> </span>mysql_connect("$host", "$username", "$password")or die("cannot connect"); <span class="s4"><br> </span>mysql_select_db("$db_name")or die("cannot select DB");</p> <p class="p2"><span class="s5">// get data that sent from form </span><span class="s4"><br> </span>$topic=$_POST['topic'];<span class="s4"><br> </span>$detail=$_POST['detail'];<span class="s4"><br> </span>$name=$_POST['name'];<span class="s4"><br> </span>$email=$_POST['email'];<span class="s4"><br> <br> </span>$datetime=date("d/m/y h:i:s"); <span class="s5">//create date time</span><span class="s4"><br> <br> </span>$sql="INSERT INTO $tbl_name(topic, detail, name, email, datetime)VALUES('$topic', '$detail', '$name', '$email', '$datetime')";<span class="s4"><br> </span>$result=mysql_query($sql);<span class="s4"><br> <br> </span>if($result){<span class="s4"><br> </span>echo "Successful<BR>";<span class="s4"><br> </span>echo "<a href=main_forum.php>View your topic</a>";<span class="s4"><br> </span>}<span class="s4"><br> </span>else{<span class="s4"><br> </span>echo "ERROR";<span class="s4"><br> </span>}<span class="s4"><br> </span>mysql_close();<span class="s4"><br> </span>?></p> </td> </tr> </tbody> </table> </body> </html> Thanks again!

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Display database content which is last inserted using last inserted ID

- by user2330772

What i am doing is i am displaying last inserted data when form data is submitted,the form is multipart/form-data. I am getting this form data using jquery,here i am sending this data to php file using Ajax POST.In that php file i am inserting that data in db table..where i am getting the id of inserted data..on success of Ajax call i am sending that id to another PHP file..where using that id i am displaying the last inserted data... My form is: <form method="post" enctype="multipart/form-data" name="upload_form" id="data"> <select id="sel"> <option>Select the Project Stream</option> <option value="1">Computer Science</option> <option value="2">Mechanical</option> <option value="3">IT</option> <option value="4">Web Development</option> <option value="5">MCA</option> <option value="6">Civil</option> </select><br /> <input type="text" id="title" placeholder="Project Title"/><br /> <input type="text" id="vurl" placeholder="If You have any video about project write your video url path here" style="width:435px;"/><br /> <textarea id="prjdesc" name="prjdesc" rows="20" cols="80" style="border-style:groove;box-shadow: 10px 10px 10px 10px #888888;"placeholder="Please describe Your Project"></textarea> <label for="file">Filename:</label> <input type="file" name="file" id="file"/><br /> <button>Submit</button> </form> My js file: $("form#data").submit(function() { alert("update"); var sid=$("#sel").val(); alert(sid); var ttle = $("#title").val(); alert(ttle); var text = $("#prjdesc").val(); var vurl = $("#vurl").val(); /*var dataString = 'param='+text+'&param1='+vurl+'&param2='+ttle+'&param3='+id;*/ var formData = new FormData($(this)[0]); formData.append('param',text); formData.append('param1',vurl); formData.append('param2',ttle ); formData.append('param3',sid ); $.ajax({ type:'POST', data:formData, url:'insert.php', success:function(id) { alert(id); window.location ="another.php?id="+id; }, cache: false, contentType: false, processData: false }); return false; }); insert.php: <?php print_r($_FILES); $desc = $_POST['param']; echo $desc; $video = $_POST['param1']; echo $video ; $title = $_POST['param2']; echo $title; $tech_id=$_POST['param3']; echo $tech_id; $host="localhost"; $username="root"; $password=""; $db_name="geny"; $tbl_name="project_details"; mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); $allowedExts = array("gif", "jpeg", "jpg", "png"); $extension = end(explode(".", $_FILES["file"]["name"])); $url_dir = "C:/wamp/www/WebsiteTemplate4/upload/"; if ((($_FILES["file"]["type"] == "image/gif") || ($_FILES["file"]["type"] == "image/jpeg") || ($_FILES["file"]["type"] == "image/jpg") || ($_FILES["file"]["type"] == "image/pjpeg") || ($_FILES["file"]["type"] == "image/x-png") || ($_FILES["file"]["type"] == "image/png")) && ($_FILES["file"]["size"] < 50000) && in_array($extension, $allowedExts)) { if ($_FILES["file"]["error"] > 0) { echo "Return Code: " . $_FILES["file"]["error"] . "<br>"; } else { if (file_exists($url_dir . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; } else { move_uploaded_file($_FILES["file"]["tmp_name"],$url_dir. $_FILES["file"]["name"]); // echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; $tmp = "C:/wamp/www/WebsiteTemplate4/upload/" . $_FILES["file"]["name"]; $sql="INSERT INTO $tbl_name (title, content, img_path, video_url, project_tech_Id) VALUES ('$title','$desc','$tmp','$video','$tech_id')"; if(mysql_query($sql)) { echo mysql_insert_id(); } else { echo "Cannot Insert"; } } } } else { echo "Invalid file"; } ?> another.php: <?php $temp=$_GET['id']; echo $temp; $host="localhost"; $username="root"; $password=""; $db_name="geny"; $tbl_name="project_details"; mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); $query = mysql_query("SELECT content FROM project_details WHERE id=". $temp); if (!$query) { echo 'Could not run query: ' . mysql_error(); exit; } $row = mysql_fetch_row($query); echo "<div id='uprjct' style='background:#336699;'> <p>$row[0]</p> </div>"; ?> but the ID what i am returning in insert.php containg array of elements...i dont want all these thing i want only ID(which is number).. please tell me what is wrong in my code...

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php form validation with javascript

- by Jon Hanson

hi guys i need help trying to figure out why the alert box doesnt show up when i run this. im also new at programming. html i due just fine. im currently taking a php class, and the teacher thought it would be fun to have us create a form and validate it. my problem is i am trying to call the function which then would validate it. My problem is its not calling it, and i cant quite figure out why. please help? jons viladating <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <link rel="stylesheet" href="decor.css" type="text/css"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>jons viladating</title> <script type="text/javascript">  </script> <h1>jons validations test</h1> </head> <body> <div id="rightcolumn"> <img src="hula.gif" align="right"/> </div> <text align="left"> <form name="jon" action="formoutput.php" onsubmit="return showjonsForm()" Method="post"> <fieldset style="width:250px"> <label> first name</label> <input type="text" name="fname" size="15" maxlength="22" onBlur="checkRequired( this,'fname')"/><br /> <label>last name</label> <input type="text" name="lname" size="10" maxlength="22"> <br /> </fieldset> <fieldset style="width:250px"> <label>address</label> <input type="text" name="adrs1" size="10" maxlength="30"><br /> <span class="msg_container" id="adrs2"></span><br /> <label>city</label> <input type="text" name="city" size="10" maxlength="15"><br /> <span class="msg_container" id="city"></span><br /> <label>state</label> <input type="text" name="state" size="10" maxlength="2"><br /> <span class="msg_container" id="state"></span><br /> <label>zip</label> <input type="text" name="zip" size="10" maxlength="5"><br /> </fieldset> <fieldset style="width:250px"> <label>phone</label> <input type="text" name="phone" size="10" maxlength="10"><br /> <div>please input phone number in this format 1234567892 thank you </div> <label>email</label> <input type="text" name="email" size="10" maxlength="22"><br /> <div> password must have 1 number upper case and minimum of 6 charcters</div> <label>password</label> <input type="text" name="pw2" size="10" maxlength="12"><br /> <label>select gender type</label> <select name="sex" size="1" <br /> <option>male</option> <option>female</option> <option>timelord</option> </select> <label>date of birth</label> <input type="text name="dob" size="8" maxlength="8"/> <div> would you like to know know more</div> <label> yes</label> <input type="checkbox" checked="checked" name="check" /> </fieldset> <input type="submit"/></form> </form> <div id="footer"> <img src="laps2.jpg"> <img src="orange.jpg"><img src="ok.jpg"> </div> </body> </html>

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Android: restful API service

- by Martyn

Hey, I'm looking to make a service which I can use to make calls to a web based rest api. I've spent a couple of days looking through stackoverflow.com, reading books and looking at articles whilst playing about with some code and I can't get anything which I'm happy with. Basically I want to start a service on app init then I want to be able to ask that service to request a url and return the results. In the meantime I want to be able to display a progress window or something similar. I've created a service currently which uses IDL, I've read somewhere that you only really need this for cross app communication, so think these needs stripping out but unsure how to do callbacks without it. Also when I hit the post(Config.getURL("login"), values) the app seems to pause for a while (seems weird - thought the idea behind a service was that it runs on a different thread!) Currently I have a service with post and get http methods inside, a couple of AIDL files (for two way communication), a ServiceManager which deals with starting, stopping, binding etc to the service and I'm dynamically creating a Handler with specific code for the callbacks as needed. I don't want anyone to give me a complete code base to work on, but some pointers would be greatly appreciated; even if it's to say I'm doing it completely wrong. I'm pretty new to Android and Java dev so if there are any blindingly obvious mistakes here - please don't think I'm a rubbish developer, I'm just wet behind the ears and would appreciate being told exactly where I'm going wrong. Anyway, code in (mostly) full (really didn't want to put this much code here, but I don't know where I'm going wrong - apologies in advance): public class RestfulAPIService extends Service { final RemoteCallbackList<IRemoteServiceCallback> mCallbacks = new RemoteCallbackList<IRemoteServiceCallback>(); public void onStart(Intent intent, int startId) { super.onStart(intent, startId); } public IBinder onBind(Intent intent) { return binder; } public void onCreate() { super.onCreate(); } public void onDestroy() { super.onDestroy(); mCallbacks.kill(); } private final IRestfulService.Stub binder = new IRestfulService.Stub() { public void doLogin(String username, String password) { Message msg = new Message(); Bundle data = new Bundle(); HashMap<String, String> values = new HashMap<String, String>(); values.put("username", username); values.put("password", password); String result = post(Config.getURL("login"), values); data.putString("response", result); msg.setData(data); msg.what = Config.ACTION_LOGIN; mHandler.sendMessage(msg); } public void registerCallback(IRemoteServiceCallback cb) { if (cb != null) mCallbacks.register(cb); } }; private final Handler mHandler = new Handler() { public void handleMessage(Message msg) { // Broadcast to all clients the new value. final int N = mCallbacks.beginBroadcast(); for (int i = 0; i < N; i++) { try { switch (msg.what) { case Config.ACTION_LOGIN: mCallbacks.getBroadcastItem(i).userLogIn( msg.getData().getString("response")); break; default: super.handleMessage(msg); return; } } catch (RemoteException e) { } } mCallbacks.finishBroadcast(); } public String post(String url, HashMap<String, String> namePairs) {...} public String get(String url) {...} }; A couple of AIDL files: package com.something.android oneway interface IRemoteServiceCallback { void userLogIn(String result); } and package com.something.android import com.something.android.IRemoteServiceCallback; interface IRestfulService { void doLogin(in String username, in String password); void registerCallback(IRemoteServiceCallback cb); } and the service manager: public class ServiceManager { final RemoteCallbackList<IRemoteServiceCallback> mCallbacks = new RemoteCallbackList<IRemoteServiceCallback>(); public IRestfulService restfulService; private RestfulServiceConnection conn; private boolean started = false; private Context context; public ServiceManager(Context context) { this.context = context; } public void startService() { if (started) { Toast.makeText(context, "Service already started", Toast.LENGTH_SHORT).show(); } else { Intent i = new Intent(); i.setClassName("com.something.android", "com.something.android.RestfulAPIService"); context.startService(i); started = true; } } public void stopService() { if (!started) { Toast.makeText(context, "Service not yet started", Toast.LENGTH_SHORT).show(); } else { Intent i = new Intent(); i.setClassName("com.something.android", "com.something.android.RestfulAPIService"); context.stopService(i); started = false; } } public void bindService() { if (conn == null) { conn = new RestfulServiceConnection(); Intent i = new Intent(); i.setClassName("com.something.android", "com.something.android.RestfulAPIService"); context.bindService(i, conn, Context.BIND_AUTO_CREATE); } else { Toast.makeText(context, "Cannot bind - service already bound", Toast.LENGTH_SHORT).show(); } } protected void destroy() { releaseService(); } private void releaseService() { if (conn != null) { context.unbindService(conn); conn = null; Log.d(LOG_TAG, "unbindService()"); } else { Toast.makeText(context, "Cannot unbind - service not bound", Toast.LENGTH_SHORT).show(); } } class RestfulServiceConnection implements ServiceConnection { public void onServiceConnected(ComponentName className, IBinder boundService) { restfulService = IRestfulService.Stub.asInterface((IBinder) boundService); try { restfulService.registerCallback(mCallback); } catch (RemoteException e) {} } public void onServiceDisconnected(ComponentName className) { restfulService = null; } }; private IRemoteServiceCallback mCallback = new IRemoteServiceCallback.Stub() { public void userLogIn(String result) throws RemoteException { mHandler.sendMessage(mHandler.obtainMessage(Config.ACTION_LOGIN, result)); } }; private Handler mHandler; public void setHandler(Handler handler) { mHandler = handler; } } Service init and bind: // this I'm calling on app onCreate servicemanager = new ServiceManager(this); servicemanager.startService(); servicemanager.bindService(); application = (ApplicationState)this.getApplication(); application.setServiceManager(servicemanager); service function call: // this lot i'm calling as required - in this example for login progressDialog = new ProgressDialog(Login.this); progressDialog.setMessage("Logging you in..."); progressDialog.show(); application = (ApplicationState) getApplication(); servicemanager = application.getServiceManager(); servicemanager.setHandler(mHandler); try { servicemanager.restfulService.doLogin(args[0], args[1]); } catch (RemoteException e) { e.printStackTrace(); } ...later in the same file... Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch (msg.what) { case Config.ACTION_LOGIN: if (progressDialog.isShowing()) { progressDialog.dismiss(); } try { ...process login results... } } catch (JSONException e) { Log.e("JSON", "There was an error parsing the JSON", e); } break; default: super.handleMessage(msg); } } }; Any and all help is greatly appreciated and I'll even buy you a coffee or a beer if you fancy :D Martyn

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Spring transactions not committing

- by Clinton Bosch

I am struggling to get my spring managed transactions to commit, could someone please spot what I have done wrong. All my tables are mysql InnonDB tables. My RemoteServiceServlet (GWT) is as follows: public class TrainTrackServiceImpl extends RemoteServiceServlet implements TrainTrackService { @Autowired private DAO dao; @Override public void init(ServletConfig config) throws ServletException { super.init(config); WebApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(config.getServletContext()); AutowireCapableBeanFactory beanFactory = ctx.getAutowireCapableBeanFactory(); beanFactory.autowireBean(this); } @Transactional(propagation= Propagation.REQUIRED, rollbackFor=Exception.class) public UserDTO createUser(String firstName, String lastName, String idNumber, String cellPhone, String email, int merchantId) { User user = new User(); user.setFirstName(firstName); user.setLastName(lastName); user.setIdNumber(idNumber); user.setCellphone(cellPhone); user.setEmail(email); user.setDateCreated(new Date()); Merchant merchant = (Merchant) dao.find(Merchant.class, merchantId); if (merchant != null) { user.setMerchant(merchant); } // Save the user. dao.saveOrUpdate(user); UserDTO dto = new UserDTO(); dto.id = user.getId(); dto.firstName = user.getFirstName(); dto.lastName = user.getLastName(); return dto; } The DAO is as follows: public class DAO extends HibernateDaoSupport { private String adminUsername; private String adminPassword; private String godUsername; private String godPassword; public String getAdminUsername() { return adminUsername; } public void setAdminUsername(String adminUsername) { this.adminUsername = adminUsername; } public String getAdminPassword() { return adminPassword; } public void setAdminPassword(String adminPassword) { this.adminPassword = adminPassword; } public String getGodUsername() { return godUsername; } public void setGodUsername(String godUsername) { this.godUsername = godUsername; } public String getGodPassword() { return godPassword; } public void setGodPassword(String godPassword) { this.godPassword = godPassword; } public void saveOrUpdate(ModelObject obj) { getHibernateTemplate().saveOrUpdate(obj); } And my applicationContext.xml is as follows: <context:annotation-config/> <context:component-scan base-package="za.co.xxx.traintrack.server"/>  <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>file:${user.dir}/@propertiesFile@</value> </list> </property> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${connection.dialect}</prop> <prop key="hibernate.connection.username">${connection.username}</prop> <prop key="hibernate.connection.password">${connection.password}</prop> <prop key="hibernate.connection.url">${connection.url}</prop> <prop key="hibernate.connection.driver_class">${connection.driver.class}</prop> <prop key="hibernate.show_sql">${show.sql}</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.c3p0.min_size">5</prop> <prop key="hibernate.c3p0.max_size">20</prop> <prop key="hibernate.c3p0.timeout">300</prop> <prop key="hibernate.c3p0.max_statements">50</prop> <prop key="hibernate.c3p0.idle_test_period">60</prop> </props> </property> <property name="annotatedClasses"> <list> <value>za.co.xxx.traintrack.server.model.Answer</value> <value>za.co.xxx.traintrack.server.model.Company</value> <value>za.co.xxx.traintrack.server.model.CompanyRegion</value> <value>za.co.xxx.traintrack.server.model.Merchant</value> <value>za.co.xxx.traintrack.server.model.Module</value> <value>za.co.xxx.traintrack.server.model.Question</value> <value>za.co.xxx.traintrack.server.model.User</value> <value>za.co.xxx.traintrack.server.model.CompletedModule</value> </list> </property> </bean> <bean id="dao" class="za.co.xxx.traintrack.server.DAO"> <property name="sessionFactory" ref="sessionFactory"/> <property name="adminUsername" value="${admin.user.name}"/> <property name="adminPassword" value="${admin.user.password}"/> <property name="godUsername" value="${god.user.name}"/> <property name="godPassword" value="${god.user.password}"/> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory"> <ref local="sessionFactory"/> </property> </bean>  <tx:annotation-driven transaction-manager="transactionManager"/> If I change the sessionFactory property to be autoCommit=true then my object does get persisited. <prop key="hibernate.connection.autocommit">true</prop>

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Updated data is not loaded in the same browser(using Ajax )

- by Mouli

Initilly load some datas into dropdown list. It contain company code and company related fields in Textbox. Using Ajax to load the company related Fields in onchange Function I edit the company related fields and update it. Its updated Successfully then i Click the back button and refresh the browser. I select the updated company form the dropdown list. It always list the old value insted of updated data. I want to show the updated fields into corresponding textbox. This part of coding is to load the companyname into dropdown list <% DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; ResultSet rsEdit = null; int updateSuccess = 0; String button = request.getParameter("saveAction"); rs = dbAccess.executeQuery("select companyname,Companycode,companyid from yosemitecompany where cmpstatus=1 order by companyname"); %> My Ajax function <script> function showCompanyDetails(str) { if (str=="") { document.getElementById("CompanyName").innerHTML=""; return; } if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest(); } else { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { var resValue=new Array(); resValue = xmlhttp.responseText.split("$"); document.getElementById("CompanyName").value=resValue[0]; document.getElementById("StreetName1").value=(resValue[1]!=null && !resValue[1].equalsIgnoreCase("null") && resValue[1].length>0?resValue[1]:""); document.getElementById("StreetName2").value=(resValue[2]!=null && !resValue[2].equalsIgnoreCase("null") && resValue[2].length>0?resValue[2]:""); document.getElementById("City").value=(resValue[3]!=null && !resValue[3].equalsIgnoreCase("null") && resValue[3].length>0?resValue[3]:""); document.getElementById("Zipcode").value=trim((resValue[5]!=null && !resValue[5].equalsIgnoreCase("null") && resValue[5].length>0?resValue[5]:"")); document.getElementById("officePhone").value=(resValue[6]!=null && !resValue[6].equalsIgnoreCase("null") && resValue[6].length>0?resValue[6]:""); document.getElementById("Fax1").value=(resValue[7]!=null && !resValue[7].equalsIgnoreCase("null") && resValue[7].length>0?resValue[7]:""); document.getElementById("email").value=(resValue[8]!=null && !resValue[8].equalsIgnoreCase("null") && resValue[8].length>0?resValue[8]:""); document.getElementById("WebSite").value=(resValue[9]!=null && !resValue[9].equalsIgnoreCase("null") && resValue[9].length>0?resValue[9]:""); document.getElementById("description").value=(resValue[10]!=null && !resValue[10].equalsIgnoreCase("null") && resValue[10].length>0?resValue[10]:""); document.getElementById("companycode").value=resValue[11]; document.getElementById("tempCompanyId").value=resValue[12]; document.getElementById("tempStateId").value=resValue[13]; stateID = resValue[13]; countryID = resValue[14]; processAjaxRequestPost('ajaxRequestPost','SingleListHandler','getCountryListDetails', document.getElementById("tempCompanyId").value); showTimezone(resValue[15]); document.getElementById("userName").value=resValue[16]; document.getElementById("passWord").value=resValue[17]; } } xmlhttp.open("GET","customerDetail.jsp?val="+str,true); xmlhttp.send(); } </script> My Update function <%if(updateSuccess <= 0){ if(button != null && button.equalsIgnoreCase("update")) { String companyCode = request.getParameter("companycode").trim(); String companyName = request.getParameter("CompanyName").trim(); String StreetName1 = request.getParameter("StreetName1").trim(); String StreetName2 = request.getParameter("StreetName2").trim(); String City = request.getParameter("City").trim(); String Zipcode = request.getParameter("Zipcode").trim(); String officePhone = request.getParameter("officePhone").trim(); String Fax1 = request.getParameter("Fax1").trim(); String email = request.getParameter("email").trim(); String WebSite = request.getParameter("WebSite").trim(); String description = request.getParameter("description").trim(); String companyid = request.getParameter("tempCompanyId").trim(); String stateId = request.getParameter("tempStateId").trim(); String timeZone = request.getParameter("timezone").trim(); String uploadCustomerLogo = request.getParameter("uploadCustomerLogo").trim(); String userName = request.getParameter("userName").trim(); String passWord = request.getParameter("passWord").trim(); String smtpInsertFlag = "NO"; String getCompanyId = null; updateSuccess = dbAccess.executeUpdate("update yosemitecompany set companyname='"+com.zoniac.util.Util.deQuoteForSingleQuote(companyName)+"', streetname1='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName1)+"', streetname2='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName2)+"', cityname='"+com.zoniac.util.Util.deQuoteForSingleQuote(City)+"', zipcode='"+com.zoniac.util.Util.deQuoteForSingleQuote(Zipcode)+"', phonenumber1='"+com.zoniac.util.Util.deQuoteForSingleQuote(officePhone)+"', fax1='"+com.zoniac.util.Util.deQuoteForSingleQuote(Fax1)+"', email1='"+com.zoniac.util.Util.deQuoteForSingleQuote(email)+"', website='"+com.zoniac.util.Util.deQuoteForSingleQuote(WebSite)+"', description='"+com.zoniac.util.Util.deQuoteForSingleQuote(description)+"',timezoneid="+timeZone+", stateid="+stateId+" where companyid='"+companyid+"'"); if(rs != null) { rs = null; dbAccess.close(); } } %> My customerDetail.jsp File <% String val = request.getParameter("val"); DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; String outputResult = null; String ff = "NO"; rs = dbAccess.executeQuery("select companyname,streetname1,streetname2,cityname,(select statename from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as state,zipcode,phonenumber1,fax1,email1,website,description,companycode,companyid,(select stateid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as statecode,(select countryid from country where countryid =(select countryid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+")))as countryid,timezoneid from yosemitecompany where companyid = "+val+""); if(rs.next()){ outputResult = rs.getString(1)+"$"+rs.getString(2)+"$"+rs.getString(3)+"$"+rs.getString(4)+"$"+rs.getString(5)+"$"+rs.getString(6)+"$"+rs.getString(7)+"$"+rs.getString(8)+"$"+rs.getString(9)+"$"+rs.getString(10)+"$"+rs.getString(11)+"$"+rs.getString(12)+"$"+rs.getString(13)+"$"+rs.getString(14)+"$"+rs.getString(15)+"$"+rs.getString(16); } rs = null; rs = dbAccess.executeQuery("select username,password from EMAILAUTHENTICATIONDETAILS where companyid="+val); if(rs.next()){ ff="YES"; outputResult += "$"+rs.getString(1)+"$"+rs.getString(2); } if(ff.equals("NO")){ outputResult += "$$"; } out.println(outputResult); outputResult = null; ff = "NO"; if(rs!=null) { rs = null; dbAccess.close(); } %>

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Using jQuery to POST Form Data to an ASP.NET ASMX AJAX Web Service

- by Rick Strahl

The other day I got a question about how to call an ASP.NET ASMX Web Service or PageMethods with the POST data from a Web Form (or any HTML form for that matter). The idea is that you should be able to call an endpoint URL, send it regular urlencoded POST data and then use Request.Form[] to retrieve the posted data as needed. My first reaction was that you can’t do it, because ASP.NET ASMX AJAX services (as well as Page Methods and WCF REST AJAX Services) require that the content POSTed to the server is posted as JSON and sent with an application/json or application/x-javascript content type. IOW, you can’t directly call an ASP.NET AJAX service with regular urlencoded data. Note that there are other ways to accomplish this. You can use ASP.NET MVC and a custom route, an HTTP Handler or separate ASPX page, or even a WCF REST service that’s configured to use non-JSON inputs. However if you want to use an ASP.NET AJAX service (or Page Methods) with a little bit of setup work it’s actually quite easy to capture all the form variables on the client and ship them up to the server. The basic steps needed to make this happen are: Capture form variables into an array on the client with jQuery’s .serializeArray() function Use $.ajax() or my ServiceProxy class to make an AJAX call to the server to send this array On the server create a custom type that matches the .serializeArray() name/value structure Create extension methods on NameValue[] to easily extract form variables Create a [WebMethod] that accepts this name/value type as an array (NameValue[]) This seems like a lot of work but realize that steps 3 and 4 are a one time setup step that can be reused in your entire site or multiple applications. Let’s look at a short example that looks like this as a base form of fields to ship to the server: The HTML for this form looks something like this: <div id="divMessage" class="errordisplay" style="display: none"> </div> <div> <div class="label">Name:</div> <div><asp:TextBox runat="server" ID="txtName" /></div> </div> <div> <div class="label">Company:</div> <div><asp:TextBox runat="server" ID="txtCompany"/></div> </div> <div> <div class="label" ></div> <div> <asp:DropDownList runat="server" ID="lstAttending"> <asp:ListItem Text="Attending" Value="Attending"/> <asp:ListItem Text="Not Attending" Value="NotAttending" /> <asp:ListItem Text="Maybe Attending" Value="MaybeAttending" /> <asp:ListItem Text="Not Sure Yet" Value="NotSureYet" /> </asp:DropDownList> </div> </div> <div> <div class="label">Special Needs:<br /> <small>(check all that apply)</small></div> <div> <asp:ListBox runat="server" ID="lstSpecialNeeds" SelectionMode="Multiple"> <asp:ListItem Text="Vegitarian" Value="Vegitarian" /> <asp:ListItem Text="Vegan" Value="Vegan" /> <asp:ListItem Text="Kosher" Value="Kosher" /> <asp:ListItem Text="Special Access" Value="SpecialAccess" /> <asp:ListItem Text="No Binder" Value="NoBinder" /> </asp:ListBox> </div> </div> <div> <div class="label"></div> <div> <asp:CheckBox ID="chkAdditionalGuests" Text="Additional Guests" runat="server" /> </div> </div> <hr /> <input type="button" id="btnSubmit" value="Send Registration" /> The form includes a few different kinds of form fields including a multi-selection listbox to demonstrate retrieving multiple values. Setting up the Server Side [WebMethod] The [WebMethod] on the server we’re going to call is going to be very simple and just capture the content of these values and echo then back as a formatted HTML string. Obviously this is overly simplistic but it serves to demonstrate the simple point of capturing the POST data on the server in an AJAX callback. public class PageMethodsService : System.Web.Services.WebService { [WebMethod] public string SendRegistration(NameValue[] formVars) { StringBuilder sb = new StringBuilder(); sb.AppendFormat("Thank you {0}, <br/><br/>", HttpUtility.HtmlEncode(formVars.Form("txtName"))); sb.AppendLine("You've entered the following: <hr/>"); foreach (NameValue nv in formVars) { // strip out ASP.NET form vars like _ViewState/_EventValidation if (!nv.name.StartsWith("__")) { if (nv.name.StartsWith("txt") || nv.name.StartsWith("lst") || nv.name.StartsWith("chk")) sb.Append(nv.name.Substring(3)); else sb.Append(nv.name); sb.AppendLine(": " + HttpUtility.HtmlEncode(nv.value) + "<br/>"); } } sb.AppendLine("<hr/>"); string[] needs = formVars.FormMultiple("lstSpecialNeeds"); if (needs == null) sb.AppendLine("No Special Needs"); else { sb.AppendLine("Special Needs: <br/>"); foreach (string need in needs) { sb.AppendLine("  " + need + "<br/>"); } } return sb.ToString(); } } The key feature of this method is that it receives a custom type called NameValue[] which is an array of NameValue objects that map the structure that the jQuery .serializeArray() function generates. There are two custom types involved in this: The actual NameValue type and a NameValueExtensions class that defines a couple of extension methods for the NameValue[] array type to allow for single (.Form()) and multiple (.FormMultiple()) value retrieval by name. The NameValue class is as simple as this and simply maps the structure of the array elements of .serializeArray(): public class NameValue { public string name { get; set; } public string value { get; set; } } The extension method class defines the .Form() and .FormMultiple() methods to allow easy retrieval of form variables from the returned array: /// <summary> /// Simple NameValue class that maps name and value /// properties that can be used with jQuery's /// $.serializeArray() function and JSON requests /// </summary> public static class NameValueExtensionMethods { /// <summary> /// Retrieves a single form variable from the list of /// form variables stored /// </summary> /// <param name="formVars"></param> /// <param name="name">formvar to retrieve</param> /// <returns>value or string.Empty if not found</returns> public static string Form(this NameValue[] formVars, string name) { var matches = formVars.Where(nv => nv.name.ToLower() == name.ToLower()).FirstOrDefault(); if (matches != null) return matches.value; return string.Empty; } /// <summary> /// Retrieves multiple selection form variables from the list of /// form variables stored. /// </summary> /// <param name="formVars"></param> /// <param name="name">The name of the form var to retrieve</param> /// <returns>values as string[] or null if no match is found</returns> public static string[] FormMultiple(this NameValue[] formVars, string name) { var matches = formVars.Where(nv => nv.name.ToLower() == name.ToLower()).Select(nv => nv.value).ToArray(); if (matches.Length == 0) return null; return matches; } } Using these extension methods it’s easy to retrieve individual values from the array: string name = formVars.Form("txtName"); or multiple values: string[] needs = formVars.FormMultiple("lstSpecialNeeds"); if (needs != null) { // do something with matches } Using these functions in the SendRegistration method it’s easy to retrieve a few form variables directly (txtName and the multiple selections of lstSpecialNeeds) or to iterate over the whole list of values. Of course this is an overly simple example – in typical app you’d probably want to validate the input data and save it to the database and then return some sort of confirmation or possibly an updated data list back to the client. Since this is a full AJAX service callback realize that you don’t have to return simple string values – you can return any of the supported result types (which are most serializable types) including complex hierarchical objects and arrays that make sense to your client code. POSTing Form Variables from the Client to the AJAX Service To call the AJAX service method on the client is straight forward and requires only use of little native jQuery plus JSON serialization functionality. To start add jQuery and the json2.js library to your page: <script src="Scripts/jquery.min.js" type="text/javascript"></script> <script src="Scripts/json2.js" type="text/javascript"></script> json2.js can be found here (be sure to remove the first line from the file): http://www.json.org/json2.js It’s required to handle JSON serialization for those browsers that don’t support it natively. With those script references in the document let’s hookup the button click handler and call the service: $(document).ready(function () { $("#btnSubmit").click(sendRegistration); }); function sendRegistration() { var arForm = $("#form1").serializeArray(); $.ajax({ url: "PageMethodsService.asmx/SendRegistration", type: "POST", contentType: "application/json", data: JSON.stringify({ formVars: arForm }), dataType: "json", success: function (result) { var jEl = $("#divMessage"); jEl.html(result.d).fadeIn(1000); setTimeout(function () { jEl.fadeOut(1000) }, 5000); }, error: function (xhr, status) { alert("An error occurred: " + status); } }); } The key feature in this code is the $("#form1").serializeArray(); call which serializes all the form fields of form1 into an array. Each form var is represented as an object with a name/value property. This array is then serialized into JSON with: JSON.stringify({ formVars: arForm }) The format for the parameter list in AJAX service calls is an object with one property for each parameter of the method. In this case its a single parameter called formVars and we’re assigning the array of form variables to it. The URL to call on the server is the name of the Service (or ASPX Page for Page Methods) plus the name of the method to call. On return the success callback receives the result from the AJAX callback which in this case is the formatted string which is simply assigned to an element in the form and displayed. Remember the result type is whatever the method returns – it doesn’t have to be a string. Note that ASP.NET AJAX and WCF REST return JSON data as a wrapped object so the result has a ‘d’ property that holds the actual response: jEl.html(result.d).fadeIn(1000); Slightly simpler: Using ServiceProxy.js If you want things slightly cleaner you can use the ServiceProxy.js class I’ve mentioned here before. The ServiceProxy class handles a few things for calling ASP.NET and WCF services more cleanly: Automatic JSON encoding Automatic fix up of ‘d’ wrapper property Automatic Date conversion on the client Simplified error handling Reusable and abstracted To add the service proxy add: <script src="Scripts/ServiceProxy.js" type="text/javascript"></script> and then change the code to this slightly simpler version: <script type="text/javascript"> proxy = new ServiceProxy("PageMethodsService.asmx/"); $(document).ready(function () { $("#btnSubmit").click(sendRegistration); }); function sendRegistration() { var arForm = $("#form1").serializeArray(); proxy.invoke("SendRegistration", { formVars: arForm }, function (result) { var jEl = $("#divMessage"); jEl.html(result).fadeIn(1000); setTimeout(function () { jEl.fadeOut(1000) }, 5000); }, function (error) { alert(error.message); } ); } The code is not very different but it makes the call as simple as specifying the method to call, the parameters to pass and the actions to take on success and error. No more remembering which content type and data types to use and manually serializing to JSON. This code also removes the “d” property processing in the response and provides more consistent error handling in that the call always returns an error object regardless of a server error or a communication error unlike the native $.ajax() call. Either approach works and both are pretty easy. The ServiceProxy really pays off if you use lots of service calls and especially if you need to deal with date values returned from the server on the client. Summary Making Web Service calls and getting POST data to the server is not always the best option – ASP.NET and WCF AJAX services are meant to work with data in objects. However, in some situations it’s simply easier to POST all the captured form data to the server instead of mapping all properties from the input fields to some sort of message object first. For this approach the above POST mechanism is useful as it puts the parsing of the data on the server and leaves the client code lean and mean. It’s even easy to build a custom model binder on the server that can map the array values to properties on an object generically with some relatively simple Reflection code and without having to manually map form vars to properties and do string conversions. Keep in mind though that other approaches also abound. ASP.NET MVC makes it pretty easy to create custom routes to data and the built in model binder makes it very easy to deal with inbound form POST data in its original urlencoded format. The West Wind West Wind Web Toolkit also includes functionality for AJAX callbacks using plain POST values. All that’s needed is a Method parameter to query/form value to specify the method to be called on the server. After that the content type is completely optional and up to the consumer. It’d be nice if the ASP.NET AJAX Service and WCF AJAX Services weren’t so tightly bound to the content type so that you could more easily create open access service endpoints that can take advantage of urlencoded data that is everywhere in existing pages. It would make it much easier to create basic REST endpoints without complicated service configuration. Ah one can dream! In the meantime I hope this article has given you some ideas on how you can transfer POST data from the client to the server using JSON – it might be useful in other scenarios beyond ASP.NET AJAX services as well. Additional Resources ServiceProxy.js A small JavaScript library that wraps $.ajax() to call ASP.NET AJAX and WCF AJAX Services. Includes date parsing extensions to the JSON object, a global dataFilter for processing dates on all jQuery JSON requests, provides cleanup for the .NET wrapped message format and handles errors in a consistent fashion. Making jQuery Calls to WCF/ASMX with a ServiceProxy Client More information on calling ASMX and WCF AJAX services with jQuery and some more background on ServiceProxy.js. Note the implementation has slightly changed since the article was written. ww.jquery.js The West Wind West Wind Web Toolkit also includes ServiceProxy.js in the West Wind jQuery extension library. This version is slightly different and includes embedded json encoding/decoding based on json2.js.© Rick Strahl, West Wind Technologies, 2005-2010Posted in jQuery ASP.NET AJAX

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SQL SERVER – Challenge – Puzzle – Usage of FAST Hint

- by pinaldave

I was recently working with various SQL Server Hints. After working for a day on various hints, I realize that for one hint, I am not able to come up with good example. The hint is FAST. Let us look at the definition of the FAST hint from the Book On-Line. FAST number_rows Specifies that the query is optimized for fast retrieval of the first number_rows. This is a nonnegative integer. After the first number_rows are returned, the query continues execution and produces its full result set. Now the question is in what condition this hint can be useful. I have tried so many different combination, I have found this hint does not make much performance difference, infect I did not notice any change in time taken to load the resultset. I noticed that this hint does not change number of the page read to return result. Now when there is difference in performance is expected because if you read the what FAST hint does is that it only returns first few results FAST – which does not mean there will be difference in performance. I also understand that this hint gives the guidance/suggestions/hint to query optimizer that there are only 100 rows are in expected resultset. This tricking the optimizer to think there are only 100 rows and which (may) lead to render different execution plan than the one which it would have taken in normal case (without hint). Again, not necessarily, this will happen always. Now if you read above discussion, you will find that basic understanding of the hint is very clear to me but I still feel that I am missing something. Here are my questions: 1) In what condition this hint can be useful? What is the case, when someone want to see first few rows early because my experience suggests that when first few rows are rendered remaining rows are rendered as well. 2) Is there any way application can retrieve the fast fetched rows from SQL Server? 3) Do you use this hint in your application? Why? When? and How? Here are few examples I have attempted during the my experiment and found there is no difference in execution plan except its estimated number of rows are different leading optimizer think that the cost is less but in reality that is not the case. USE AdventureWorks GO SET STATISTICS IO ON SET STATISTICS TIME ON GO --------------------------------------------- -- Table Scan with Fast Hint SELECT * FROM Sales.SalesOrderDetail GO SELECT * FROM Sales.SalesOrderDetail OPTION (FAST 100) GO --------------------------------------------- -- Table Scan with Where on Index Key SELECT * FROM Sales.SalesOrderDetail WHERE OrderQty = 14 GO SELECT * FROM Sales.SalesOrderDetail WHERE OrderQty = 14 OPTION (FAST 100) GO --------------------------------------------- -- Table Scan with Where on Index Key SELECT * FROM Sales.SalesOrderDetail WHERE SalesOrderDetailID < 1000 GO SELECT * FROM Sales.SalesOrderDetail WHERE SalesOrderDetailID < 1000 OPTION (FAST 100) GO Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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What’s new in Silverlight 4 RC?

- by pluginbaby

I am here in Las Vegas for MIX10 where Scott Guthrie announced today the release of Silverlight 4 RC and the Visual Studio 2010 tools. You can now install VS2010 RC!!! As always, downloads links are here: www.silverlight.net He also said that the final version of Silverlight 4 will come next month (so april)! 4 months ago, I wrote a blog post on the new features of Silverlight 4 beta, so… what’s new in the RC ? Rich Text · RichTextArea renamed to RichTextBox · Text position and selection APIs · “Xaml” property for serializing text content · XAML clipboard format · FlowDirection support on Runs tag · “Format then type” support when dragging controls to the designer · Thai/Vietnamese/Indic support · UI Automation Text pattern Networking · UploadProgress support (Client stack) · Caching support (Client stack) · Sockets security restrictions removal (Elevated Trust) · Sockets policy file retrieval via HTTP · Accept-Language header Out of Browser (Elevated Trust) · XAP signing · Silent install and emulation mode · Custom window chrome · Better support for COM Automation · Cancellable shutdown event · Updated security dialogs Media · Pinned full-screen mode on secondary display · Webcam/Mic configuration preview · More descriptive MediaSourceStream errors · Content & Output protection updates · Updates to H.264 content protection (ClearNAL) · Digital Constraint Token · CGMS-A · Multicast · Graphics card driver validation & revocation Graphics and Printing · HW accelerated Perspective Transforms · Ability to query page size and printable area · Memory usage and perf improvements Data · Entity-level validation support of INotifyDataErrorInfo for DataGrid · XPath support for XML Parser · New architecture enables future innovation · Performance and stability improvements · XmlnsPrefix & XmlnsDefinition attributes · Support setting order-dependent properties Globalization & Localization · Support for 31 new languages · Arabic, Hebrew and Thai input on Mac · Indic support More … · Update to DeepZoom code base with HW acceleration · Support for Private mode browsing · Google Chrome support (Windows) · FrameworkElement.Unloaded event · HTML Hosting accessibility · IsoStore perf improvements · Native hosting perf improvements (e.g., Bing Toolbar) · Consistency with Silverlight for Mobile APIs and Tooling · SDK - System.Numerics.dll - Dynamic XAP support (MEF) - Frame/Navigation refresh support That’s a lot! You will find more details on the following links: http://timheuer.com/blog/archive/2010/03/15/whats-new-in-silverlight-4-rc-mix10.aspx http://www.davidpoll.com/2010/03/15/new-in-the-silverlight-4-rc-xaml-features/ Technorati Tags: Silverlight

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Big Data – Buzz Words: What is NoSQL – Day 5 of 21

- by Pinal Dave

In yesterday’s blog post we explored the basic architecture of Big Data . In this article we will take a quick look at one of the four most important buzz words which goes around Big Data – NoSQL. What is NoSQL? NoSQL stands for Not Relational SQL or Not Only SQL. Lots of people think that NoSQL means there is No SQL, which is not true – they both sound same but the meaning is totally different. NoSQL does use SQL but it uses more than SQL to achieve its goal. As per Wikipedia’s NoSQL Database Definition – “A NoSQL database provides a mechanism for storage and retrieval of data that uses looser consistency models than traditional relational databases.“ Why use NoSQL? A traditional relation database usually deals with predictable structured data. Whereas as the world has moved forward with unstructured data we often see the limitations of the traditional relational database in dealing with them. For example, nowadays we have data in format of SMS, wave files, photos and video format. It is a bit difficult to manage them by using a traditional relational database. I often see people using BLOB filed to store such a data. BLOB can store the data but when we have to retrieve them or even process them the same BLOB is extremely slow in processing the unstructured data. A NoSQL database is the type of database that can handle unstructured, unorganized and unpredictable data that our business needs it. Along with the support to unstructured data, the other advantage of NoSQL Database is high performance and high availability. Eventual Consistency Additionally to note that NoSQL Database may not provided 100% ACID (Atomicity, Consistency, Isolation, Durability) compliance. Though, NoSQL Database does not support ACID they provide eventual consistency. That means over the long period of time all updates can be expected to propagate eventually through the system and data will be consistent. Taxonomy Taxonomy is the practice of classification of things or concepts and the principles. The NoSQL taxonomy supports column store, document store, key-value stores, and graph databases. We will discuss the taxonomy in detail in later blog posts. Here are few of the examples of the each of the No SQL Category. Column: Hbase, Cassandra, Accumulo Document: MongoDB, Couchbase, Raven Key-value : Dynamo, Riak, Azure, Redis, Cache, GT.m Graph: Neo4J, Allegro, Virtuoso, Bigdata As of now there are over 150 NoSQL Database and you can read everything about them in this single link. Tomorrow In tomorrow’s blog post we will discuss Buzz Word – Hadoop. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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Solaris Tips : Assembler, Format, File Descriptors, Ciphers & Mount Points

- by Giri Mandalika

.roundedcorner { border:1px solid #a1a1a1; padding:10px 40px; border-radius:25px; } .boxshadow { padding:10px 40px; box-shadow: 10px 10px 5px #888888; } 1. Most Oracle software installers need assembler Assembler (as) is not installed by default on Solaris 11. Find and install eg., # pkg search assembler INDEX ACTION VALUE PACKAGE pkg.fmri set solaris/developer/assembler pkg:/developer/[email protected] # pkg install pkg:/developer/assembler Assembler binary used to be under /usr/ccs/bin directory on Solaris 10 and prior versions. There is no /usr/ccs/bin on Solaris 11. Contents were moved to /usr/bin 2. Non-interactive retrieval of the entire list of disks that format reports If the format utility cannot show the entire list of disks in a single screen on stdout, it shows some and prompts user to - hit space for more or s to select - to move to the next screen to show few more disks. Run the following command(s) to retrieve the entire list of disks in a single shot. format 3. Finding system wide file descriptors/handles in use Run the following kstat command as any user (privileged or non-privileged). kstat -n file_cache -s buf_inuse Going through /proc (process filesystem) is less efficient and may lead to inaccurate results due to the inclusion of duplicate file handles. 4. ssh connection to a Solaris 11 host fails with error Couldn't agree a client-to-server cipher (available: aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,arcfour) Solution: add 3des-cbc to the list of accepted ciphers to sshd configuration file. Steps: Append the following line to /etc/ssh/sshd_config Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,\ arcfour,3des-cbc Restart ssh daemon svcadm -v restart ssh 5. UFS: Finding the last mount point for a device fsck utility reports the last mountpoint on which the filesystem was mounted (it won't show the mount options though). The filesystem should be unmounted when running fsck. eg., # fsck -n /dev/dsk/c0t5000CCA0162F7BC0d0s6 ** /dev/rdsk/c0t5000CCA0162F7BC0d0s6 (NO WRITE) ** Last Mounted on /export/oracle ** Phase 1 - Check Blocks and Sizes ... ...

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SQL SERVER – Concurrancy Problems and their Relationship with Isolation Level

- by pinaldave

Concurrency is simply put capability of the machine to support two or more transactions working with the same data at the same time. This usually comes up with data is being modified, as during the retrieval of the data this is not the issue. Most of the concurrency problems can be avoided by SQL Locks. There are four types of concurrency problems visible in the normal programming. 1) Lost Update – This problem occurs when there are two transactions involved and both are unaware of each other. The transaction which occurs later overwrites the transactions created by the earlier update. 2) Dirty Reads – This problem occurs when a transactions selects data that isn’t committed by another transaction leading to read the data which may not exists when transactions are over. Example: Transaction 1 changes the row. Transaction 2 changes the row. Transaction 1 rolls back the changes. Transaction 2 has selected the row which does not exist. 3) Nonrepeatable Reads – This problem occurs when two SELECT statements of the same data results in different values because another transactions has updated the data between the two SELECT statements. Example: Transaction 1 selects a row, which is later on updated by Transaction 2. When Transaction A later on selects the row it gets different value. 4) Phantom Reads – This problem occurs when UPDATE/DELETE is happening on one set of data and INSERT/UPDATE is happening on the same set of data leading inconsistent data in earlier transaction when both the transactions are over. Example: Transaction 1 is deleting 10 rows which are marked as deleting rows, during the same time Transaction 2 inserts row marked as deleted. When Transaction 1 is done deleting rows, there will be still rows marked to be deleted. When two or more transactions are updating the data, concurrency is the biggest issue. I commonly see people toying around with isolation level or locking hints (e.g. NOLOCK) etc, which can very well compromise your data integrity leading to much larger issue in future. Here is the quick mapping of the isolation level with concurrency problems: Isolation Dirty Reads Lost Update Nonrepeatable Reads Phantom Reads Read Uncommitted Yes Yes Yes Yes Read Committed No Yes Yes Yes Repeatable Read No No No Yes Snapshot No No No No Serializable No No No No I hope this 400 word small article gives some quick understanding on concurrency issues and their relation to isolation level. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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WebCenter Customer Spotlight: Marvel

- by me

Author: Peter Reiser - Social Business Evangelist, Oracle WebCenter Solution SummaryMarvel Entertainment, LLC (Marvel) is one of the world's most prominent character-based entertainment companies, built on a proven library of over 8,000 characters featured in a variety of media over seventy years. The customer wanted to optimize their brand licensing process, so Marvel worked with Oracle WebCenter partner Fishbowl Solutions and implemented a centralized Content Hub based on Oracle WebCenter Content. The 100% web based secure Intranet/Partner Extranet solution is now managing the entire life cycle of the brand licensing process. Marvel and their brand licensees have now complete visibility of brand license operations including the history of approval request and related content. Company OverviewMarvel Entertainment, LLC (Marvel) a wholly-owned subsidiary of The Walt Disney Company, is one of the world's most prominent character-based entertainment companies, built on a proven library of over 8,000 characters featured in a variety of media over seventy years. Marvel utilizes its character franchises in entertainment, licensing and publishing. Sample characters: - Spider-Man - Iron Man - Captain America - X-MEN - Thor - Avengers - And a host of others Business ChallengesMarvel wanted to optimize their brand licensing process for their characters and had following business requirements : Facilitating content worldwide Scalable and flexible infrastructure to manage multiple content types and huge file sizes Optimize the licensing process workflow trough automatic notifications, tracking reviews, issuing approvals, etc. Solution DeployedMarvel worked with Oracle WebCenter partner Fishbowl Solutions and implemented a centralized Content Hub based on Oracle WebCenter Content. The 100% web based secure Intranet/Partner Extranet solution is now managing the entire life cycle of the brand licensing process. The internal users can now manage all digital assets related to a character trough proper categorization of all items, workflow based review and approval of branding styles and a powerful search and retrieval service. The licensees of Marvel brands can now online develop and submit concepts and prototypes which are reviewed and approved using a collaborative process. Business ResultMarvel and their brand licensees have now complete visibility of brand license operations including the history of approval request and related content. The character brand related content is now in the right place, at the right time at the user's fingertips with highly improved quality. Additional Information Marvel Open World Presentation Oracle WebCenter Content

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A sample Memento pattern: Is it correct?

- by TheSilverBullet

Following this query on memento pattern, I have tried to put my understanding to test. Memento pattern stands for three things: Saving state of the "memento" object for its successful retrieval Saving carefully each valid "state" of the memento Encapsulating the saved states from the change inducer so that each state remains unaltered Have I achieved these three with my design? Problem This is a zero player game where the program is initialized with a particular set up of chess pawns - the knight and queen. Then program then needs to keep adding set of pawns or knights and queens so that each pawn is "safe" for the next one move of every other pawn. The condition is that either both pawns should be placed, or none of them should be placed. The chessboard with the most number of non conflicting knights and queens should be returned. Implementation I have 4 classes for this: protected ChessBoard (the Memento) private int [][] ChessBoard; public void ChessBoard(); protected void SetChessBoard(); protected void GetChessBoard(int); public Pawn This is not related to memento. It holds info about the pawns public enum PawnType: int { Empty = 0, Queen = 1, Knight = 2, } //This returns a value that shown if the pawn can be placed safely public bool IsSafeToAddPawn(PawnType); public CareTaker This corresponds to caretaker of memento This is a double dimentional integer array that keeps a track of all states. The reason for having 2D array is to keep track of how many states are stored and which state is currently active. An example: 0 -2 1 -1 2 0 - This is current state. With second index 0/ 3 1 - This state has been saved, but has been undone private int [][]State; private ChessBoard [] MChessBoard; //This gets the chessboard at the position requested and assigns it to originator public ChessBoard GetChessBoard(int); //This overwrites the chessboard at given position public void SetChessBoard(ChessBoard, int); private int [][]State; public PlayGame (This is the originator) private bool status; private ChessBoard oChessBoard; //This sets the state of chessboard at position specified public SetChessBoard(ChessBoard, int); //This gets the state of chessboard at position specified public ChessBoard GetChessBoard(int); //This function tries to place both the pawns and returns the status of this attempt public bool PlacePawns(Pawn);

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Is MongoDB a good choice or not for my application?

- by shubham

I have a Reporting application which stores the reports in xml format as recieved from source (XML schema is not defined, it can be any format) and those reports contain some keys and values. Like jobid, setid be keys for 1 type of report and userid, groupId for another type of report etc. The type of keys that can be referred from the document is determined by the namespaces used in the xml doc. These keys are stored on the basis of namespace used in the xml document. For e.g. If a tag in xml fragment uses namespace= "myspace1", then I have keys A and B for myspace1 stored in another table. It will fetch those keys from that table for this namespace, look for their values in xml doc and store it in another table along with the pointer to this xml document (Id of a record storing complete xml document in a cell). Use cases: When the user comes and queries for that key and value, I return the document or a set of documents that are having those key/value pairs. When the user comes and queries for a certain key and provide a name for xslt (pre stored), I fetch the set of documents fulfilling that criteria and convert that xml to html with the specified xslt. When the user comes and asks for a particular fragment of a doc then it can fetch a subset from a particular document also. When the user comes and queries for top x values of a certain key, I return the set of documents that are having top 10 values of that key. I am using DB2 database for its support of xml along with relational capabilities. That makes easier for me to run xpath expressions and fetch values of keys and also aggregate a set of documents fullfilling a criteria, all on the database side. Problems: DB2 stores XML doc of upto 2GB in size. Retrieval is very slow. If some thing involves many documents, then it takes significant time for things to show up in browser, and the user has to wait. Can MongoDb help in this case, as it is document oriented? can I do xml related xpath queries and document transformations on db side? Or is it ok to use both in such a case?

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What is the right way to group this project into classes?

- by sigil

I originally asked this on SO, where it was closed and recommended that I ask it here instead. I'm trying to figure out how to group all the functions necessary for my project into classes. The goal of the project is to execute the following process: Get the user's FTP credentials (username & password). Check to make sure the credentials establish a valid connection to the FTP server. Query several Sharepoint lists and join the results of those queries to create a list of items that need to have action taken on them. Each item in the list has a folder. For each item: Zip the contents of the folder. Upload the folder to the FTP server using SFTP Update the item's Sharepoint data. Email the user an Excel report showing, e.g., Items without folder paths Items that failed to zip or upload Steps 2-5 are performed on a periodic basis; if step 2 returns an invalid connection, the user is alerted and the process returns to step 1. If at any point the user presses a certain key, the process terminates. I've defined the following set of classes, each of which is in its own .cs file: SFTP: file transfer processes DataHandler: Sharepoint data retrieval/querying/updating processes. Also makes and uploads the zip files. Exceptions: Not just one class, this is the .cs file where I have all of my exception classes. Report: Builds and sends the report. Program: The main class for running the program. I recognize that the DataHandler class is a god object, but I don't have a good idea of how to refactor it. I feel like it should be more fine-grained than just breaking it into Sharepoint, Zip, and Upload, but maybe that's it. Also, I haven't yet worked out how to combine the periodic behavior with the "wait for user input at any point in the process" part; I think that involves threads, which means other classes to manage the threads... I'm not that well-versed in design patterns, but is there one that fits this project well? If this is too big of a topic to neatly explain in an SO answer, I'll also accept a link to a good tutorial on what I'm trying to do here.

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How to create multiboot flash drive

- by Nrew

I've found a guide here: http://www.pendrivelinux.com/boot-multiple-iso-from-usb-multiboot-usb/ And found this menu.lst in my flash drive, which seems to be the one that I'm seeing when I boot using my flash drive: # This Menu Created by Lance http://www.pendrivelinux.com # Ongoing Suggested Menu Entries and the Suggestor are noted! default 0 timeout 30 color NORMAL HIGHLIGHT HELPTEXT HEADING splashimage=(hd0,0)/splash.xpm.gz foreground=FFFFFF background=0066FF title Memtest86+ find --set-root /memtest86+-4.00.iso map --mem /memtest86+-4.00.iso (hd32) map --hook root (hd32) chainloader (hd32) # Suggested by madprofessor title Boot Clonezilla root (hd0,0) kernel /clonezilla/live/vmlinuz live-media-path=clonezilla/live bootfrom=/dev/sd boot=live union=aufs noprompt ocs_live_run="ocs-live-general" ocs_live_extra_param="" ocs_live_keymap="" ocs_live_batch="no" ocs_lang="" vga=791 ip=frommedia initrd /clonezilla/live/initrd.img title Parted Magic 4.9 (Partition Tools) find --set-root /pmagic-4.9.iso map /pmagic-4.9.iso (hd32) map --hook root (hd32) chainloader (hd32) # Suggested by Deb title Partition Wizard 4.2 (Partition Tools) find --set-root /pwhe42.iso map /pwhe42.iso (hd32) map --hook root (hd32) chainloader (hd32) title Balder DOS image (FreeDOS) map --unsafe-boot /balder10.img (fd0) map --hook chainloader --force (fd0)+1 rootnoverify (fd0) # Suggested by Szymon Silski title Linux Mint 8 find --set-root /LinuxMint-8.iso map /LinuxMint-8.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper persistent iso-scan/filename=/LinuxMint-8.iso splash initrd /casper/initrd.lz title Ubuntu 10.04 find --set-root /ubuntu-10.04-desktop-i386.iso map /ubuntu-10.04-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper persistent iso-scan/filename=/ubuntu-10.04-desktop-i386.iso splash initrd /casper/initrd.lz title Xubuntu 10.04 (XFCE Desktop) find --set-root /xubuntu-10.04-desktop-i386.iso map /xubuntu-10.04-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/xubuntu.seed boot=casper persistent iso-scan/filename=/xubuntu-10.04-desktop-i386.iso splash initrd /casper/initrd.lz title Kubuntu 10.04 (KDE Desktop) find --set-root /kubuntu-10.04-desktop-i386.iso map /kubuntu-10.04-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper persistent iso-scan/filename=/kubuntu-10.04-desktop-i386.iso splash initrd /casper/initrd.lz # Suggested by Ambriel title Lubuntu 10.04 (LXDE Lightweight Desktop) find --set-root /lubuntu-10.04.iso map /lubuntu-10.04.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/lubuntu.seed boot=casper persistent iso-scan/filename=/lubuntu-10.04.iso splash initrd /casper/initrd.lz title Ubuntu 10.04 Netbook Remix (NetBook Distro) find --set-root /ubuntu-10.04-netbook-i386.iso map /ubuntu-10.04-netbook-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/netbook-remix.seed boot=casper persistent iso-scan/filename=/ubuntu-10.04-netbook-i386.iso splash initrd /casper/initrd.lz title Ubuntu 10.04 Server Edition Installer (32 bit Installer Only) find --set-root /ubuntu-10.04-server-i386.iso map /ubuntu-10.04-server-i386.iso (0xff) map --hook root (0xff) kernel /install/vmlinuz file=/cdrom/preseed/ubuntu-server.seed boot=install iso-scan/filename=/ubuntu-10.04-server-i386.iso splash initrd /install/initrd.gz title Ubuntu 9.10 find --set-root /ubuntu-9.10-desktop-i386.iso map /ubuntu-9.10-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper persistent iso-scan/filename=/ubuntu-9.10-desktop-i386.iso splash initrd /casper/initrd.lz title Xubuntu 9.10 find --set-root /xubuntu-9.10-desktop-i386.iso map /xubuntu-9.10-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/xubuntu.seed boot=casper persistent iso-scan/filename=/xubuntu-9.10-desktop-i386.iso splash initrd /casper/initrd.lz title Kubuntu 9.10 find --set-root /kubuntu-9.10-desktop-i386.iso map /kubuntu-9.10-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper persistent iso-scan/filename=/kubuntu-9.10-desktop-i386.iso splash initrd /casper/initrd.lz # Ubuntu Server and Netbook Remix suggested by Wojciech Holek title Ubuntu 9.10 Server Edition Installer (Installer Only) find --set-root /ubuntu-9.10-server-i386.iso map /ubuntu-9.10-server-i386.iso (0xff) map --hook root (0xff) kernel /install/vmlinuz file=/cdrom/preseed/ubuntu-server.seed boot=install iso-scan/filename=/ubuntu-9.10-server-i386.iso splash initrd /install/initrd.gz title Ubuntu 9.10 Netbook Remix (NetBook Distro) find --set-root /ubuntu-9.10-netbook-remix-i386.iso map /ubuntu-9.10-netbook-remix-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/netbook-remix.seed boot=casper persistent iso-scan/filename=/ubuntu-9.10-netbook-remix-i386.iso splash initrd /casper/initrd.lz title Ubuntu 9.10 Rescue Remix (Recovery Tools) find --set-root /ubuntu-rescue-remix-9-10-revision1.iso map /ubuntu-rescue-remix-9-10-revision1.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/ubuntu-rescue-remix-9-10-revision1.iso splash initrd /casper/initrd.lz title DSL 4.4.10 find --set-root /dsl-4.4.10-initrd.iso map --mem /dsl-4.4.10-initrd.iso (hd32) map --hook root (hd32) chainloader (hd32) title AVG Rescue CD (Anti-Virus + Anti-Spyware) find --set-root /avg_arl_en_90_100114.iso map /avg_arl_en_90_100114.iso (hd32) map --hook chainloader (hd32) title Ultimate Boot CD 4.11 find --set-root /ubcd411.iso map /ubcd411.iso (hd32) map --hook chainloader (hd32) title OphCrack XP 2.3.1 (XP Password Cracker) find --set-root /ophcrack-xp-livecd-2.3.1.iso map /ophcrack-xp-livecd-2.3.1.iso (0xff) map --hook root (0xff) kernel /boot/bzImage rw root=/dev/null vga=normal lang=C kmap=us screen=1024x768x16 autologin initrd /boot/rootfs.gz title OphCrack Vista 2.3.1 (Vista Password Cracker) find --set-root /ophcrack-vista-livecd-2.3.1.iso map /ophcrack-vista-livecd-2.3.1.iso (0xff) map --hook root (0xff) kernel /boot/bzImage rw root=/dev/null vga=normal lang=C kmap=us screen=1024x768x16 autologin initrd /boot/rootfs.gz # Suggested by Greg Steer title Offline NT Password & Registy Editor find --set-root /cd080802.iso map /cd080802.iso (hd32) map --hook chainloader (hd32) title SliTaz 2.0 find --set-root /slitaz-2.0.iso map --mem /slitaz-2.0.iso (hd32) map --hook chainloader (hd32) title Riplinux 9.3 find --set-root /RIPLinuX-9.3.iso map --heads=0 --sectors-per-track=0 /RIPLinuX-9.3.iso (0xff) || map --heads=0 --sectors-per-track=0 --mem /RIPLinuX-9.3.iso (0xff) map --hook chainloader (0xff) # Suggested by Sunny title YlmF (Windows Like OS) find --set-root /YlmF_OS_EN_v1.0.iso map /YlmF_OS_EN_v1.0.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper persistent iso-scan/filename=/YlmF_OS_EN_v1.0.iso splash initrd /casper/initrd.lz # Suggested by Martin Andersson title DBAN 1.0.7 (Drive Nuker) find --set-root /dban-1.0.7_i386.iso map --mem /dban-1.0.7_i386.iso (hd32) map --hook root (hd32) chainloader (hd32) # Suggested by Robin McGough title xPUD 0.9.2 (NetBook Distro) find --set-root --ignore-floppies --ignore-cd /xpud-0.9.2.iso map --heads=0 --sectors-per-track=0 /xpud-0.9.2.iso (hd32) map --hook chainloader (hd32) title Puppy 4.3.1 find --set-root /puppy/pup-431.sfs kernel /puppy/vmlinuz initrd /puppy/initrd.gz # Suggested by Relst title Run a Linux OS from the Internet kernel /gpxe.lkrn I also put some .iso files for os installers (Windows xp sp2 and Ubuntu 10.04) But they didn't show up in the list when I booted Do I need to: extract the .iso files and put in in their respective folders? Add the os that I added on the menu.lst? How do I add the iso image(os) in the menu.lst? Before adding the .iso files I first made a folder named Windows xp sp2 then placed the .iso files in there. Please help, I think I need to add the folder name or the file name on the menu.lst but I don't know how

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Radius Authorization against ActiveDirectory and the users file

- by mohrphium

I have a problem with my freeradius server configuration. I want to be able to authenticate users against Windows ActiveDirectory (2008 R2) and the users file, because some of my co-workers are not listed in AD. We use the freeradius server to authenticate WLAN users. (PEAP/MSCHAPv2) AD Authentication works great, but I still have problems with the /etc/freeradius/users file When I run freeradius -X -x I get the following: Mon Jul 2 09:15:58 2012 : Info: ++++[chap] returns noop Mon Jul 2 09:15:58 2012 : Info: ++++[mschap] returns noop Mon Jul 2 09:15:58 2012 : Info: [suffix] No '@' in User-Name = "testtest", looking up realm NULL Mon Jul 2 09:15:58 2012 : Info: [suffix] Found realm "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Stripped-User-Name = "testtest" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Realm = "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Authentication realm is LOCAL. Mon Jul 2 09:15:58 2012 : Info: ++++[suffix] returns ok Mon Jul 2 09:15:58 2012 : Info: [eap] EAP packet type response id 1 length 13 Mon Jul 2 09:15:58 2012 : Info: [eap] No EAP Start, assuming it's an on-going EAP conversation Mon Jul 2 09:15:58 2012 : Info: ++++[eap] returns updated Mon Jul 2 09:15:58 2012 : Info: [files] users: Matched entry testtest at line 1 Mon Jul 2 09:15:58 2012 : Info: ++++[files] returns ok Mon Jul 2 09:15:58 2012 : Info: ++++[expiration] returns noop Mon Jul 2 09:15:58 2012 : Info: ++++[logintime] returns noop Mon Jul 2 09:15:58 2012 : Info: [pap] WARNING: Auth-Type already set. Not setting to PAP Mon Jul 2 09:15:58 2012 : Info: ++++[pap] returns noop Mon Jul 2 09:15:58 2012 : Info: +++- else else returns updated Mon Jul 2 09:15:58 2012 : Info: ++- else else returns updated Mon Jul 2 09:15:58 2012 : Info: Found Auth-Type = EAP Mon Jul 2 09:15:58 2012 : Info: # Executing group from file /etc/freeradius/sites-enabled/default Mon Jul 2 09:15:58 2012 : Info: +- entering group authenticate {...} Mon Jul 2 09:15:58 2012 : Info: [eap] EAP Identity Mon Jul 2 09:15:58 2012 : Info: [eap] processing type tls Mon Jul 2 09:15:58 2012 : Info: [tls] Initiate Mon Jul 2 09:15:58 2012 : Info: [tls] Start returned 1 Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns handled Sending Access-Challenge of id 199 to 192.168.61.11 port 3072 EAP-Message = 0x010200061920 Message-Authenticator = 0x00000000000000000000000000000000 State = 0x85469e2a854487589fb1196910cb8ae3 Mon Jul 2 09:15:58 2012 : Info: Finished request 125. Mon Jul 2 09:15:58 2012 : Debug: Going to the next request Mon Jul 2 09:15:58 2012 : Debug: Waking up in 2.4 seconds. After that it repeats the login attempt and at some point tries to authenticate against ActiveDirectory with ntlm, which doesn't work since the user exists only in the users file. Can someone help me out here? Thanks. PS: Hope this helps, freeradius trying to auth against AD: Mon Jul 2 09:15:58 2012 : Info: ++[chap] returns noop Mon Jul 2 09:15:58 2012 : Info: ++[mschap] returns noop Mon Jul 2 09:15:58 2012 : Info: [suffix] No '@' in User-Name = "testtest", looking up realm NULL Mon Jul 2 09:15:58 2012 : Info: [suffix] Found realm "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Stripped-User-Name = "testtest" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Realm = "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Authentication realm is LOCAL. Mon Jul 2 09:15:58 2012 : Info: ++[suffix] returns ok Mon Jul 2 09:15:58 2012 : Info: ++[control] returns ok Mon Jul 2 09:15:58 2012 : Info: [eap] EAP packet type response id 7 length 67 Mon Jul 2 09:15:58 2012 : Info: [eap] No EAP Start, assuming it's an on-going EAP conversation Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns updated Mon Jul 2 09:15:58 2012 : Info: [files] users: Matched entry testtest at line 1 Mon Jul 2 09:15:58 2012 : Info: ++[files] returns ok Mon Jul 2 09:15:58 2012 : Info: ++[smbpasswd] returns notfound Mon Jul 2 09:15:58 2012 : Info: ++[expiration] returns noop Mon Jul 2 09:15:58 2012 : Info: ++[logintime] returns noop Mon Jul 2 09:15:58 2012 : Info: [pap] WARNING: Auth-Type already set. Not setting to PAP Mon Jul 2 09:15:58 2012 : Info: ++[pap] returns noop Mon Jul 2 09:15:58 2012 : Info: Found Auth-Type = EAP Mon Jul 2 09:15:58 2012 : Info: # Executing group from file /etc/freeradius/sites-enabled/inner-tunnel Mon Jul 2 09:15:58 2012 : Info: +- entering group authenticate {...} Mon Jul 2 09:15:58 2012 : Info: [eap] Request found, released from the list Mon Jul 2 09:15:58 2012 : Info: [eap] EAP/mschapv2 Mon Jul 2 09:15:58 2012 : Info: [eap] processing type mschapv2 Mon Jul 2 09:15:58 2012 : Info: [mschapv2] # Executing group from file /etc/freeradius/sites-enabled/inner-tunnel Mon Jul 2 09:15:58 2012 : Info: [mschapv2] +- entering group MS-CHAP {...} Mon Jul 2 09:15:58 2012 : Info: [mschap] Creating challenge hash with username: testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] Told to do MS-CHAPv2 for testtest with NT-Password Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --username=%{mschap:User-Name:-None} -> --username=testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] No NT-Domain was found in the User-Name. Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: %{mschap:NT-Domain} -> Mon Jul 2 09:15:58 2012 : Info: [mschap] ... expanding second conditional Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --domain=%{%{mschap:NT-Domain}:-AD.CXO.NAME} -> --domain=AD.CXO.NAME Mon Jul 2 09:15:58 2012 : Info: [mschap] mschap2: 82 Mon Jul 2 09:15:58 2012 : Info: [mschap] Creating challenge hash with username: testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --challenge=%{mschap:Challenge:-00} -> --challenge=dd441972f987d68b Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --nt-response=%{mschap:NT-Response:-00} -> --nt-response=7e6c537cd5c26093789cf7831715d378e16ea3e6c5b1f579 Mon Jul 2 09:15:58 2012 : Debug: Exec-Program output: Logon failure (0xc000006d) Mon Jul 2 09:15:58 2012 : Debug: Exec-Program-Wait: plaintext: Logon failure (0xc000006d) Mon Jul 2 09:15:58 2012 : Debug: Exec-Program: returned: 1 Mon Jul 2 09:15:58 2012 : Info: [mschap] External script failed. Mon Jul 2 09:15:58 2012 : Info: [mschap] FAILED: MS-CHAP2-Response is incorrect Mon Jul 2 09:15:58 2012 : Info: ++[mschap] returns reject Mon Jul 2 09:15:58 2012 : Info: [eap] Freeing handler Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns reject Mon Jul 2 09:15:58 2012 : Info: Failed to authenticate the user. Mon Jul 2 09:15:58 2012 : Auth: Login incorrect (mschap: External script says Logon failure (0xc000006d)): [testtest] (from client techap01 port 0 via TLS tunnel) PPS: Maybe the problem is located here: In /etc/freeradius/modules/ntlm_auth I have set ntlm to: program = "/usr/bin/ntlm_auth --request-nt-key --domain=AD.CXO.NAME --username=%{mschap:User-Name} --password=%{User-Password}" I need this, so users can login without adding @ad.cxo.name to their usernames. But how can I tell freeradius to try both logins, [email protected] (should fail) testtest (against users file - should work)

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Unable to SSH into EC2 instance on Fedora 17

- by abhishek

I did following steps But I am not able to SSH to it(Same steps work fine on Fedora 14 image). I am getting Permission denied (publickey,gssapi-keyex,gssapi-with-mic) I created new instance using fedora 17 amazon community image(ami-2ea50247). I copied my ssh keys under /home/usertest/.ssh/ after creating a usertest I have SELINUX=disabled here is Debug info: $ ssh -vvv ec2-54-243-101-41.compute-1.amazonaws.com ssh -vvv ec2-54-243-101-41.compute-1.amazonaws.com OpenSSH_5.2p1, OpenSSL 1.0.0b-fips 16 Nov 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to ec2-54-243-101-41.compute-1.amazonaws.com [54.243.101.41] port 22. debug1: Connection established. debug1: identity file /home/usertest/.ssh/identity type -1 debug1: identity file /home/usertest/.ssh/id_rsa type -1 debug3: Not a RSA1 key file /home/usertest/.ssh/id_dsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug2: key_type_from_name: unknown key type 'Proc-Type:' debug3: key_read: missing keytype debug2: key_type_from_name: unknown key type 'DEK-Info:' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/usertest/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9 debug1: match: OpenSSH_5.9 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-ctr hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 131/256 debug2: bits set: 506/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: filename /home/usertest/.ssh/known_hosts debug3: check_host_in_hostfile: match line 17 debug3: check_host_in_hostfile: filename /home/usertest/.ssh/known_hosts debug3: check_host_in_hostfile: match line 17 debug1: Host 'ec2-54-243-101-41.compute-1.amazonaws.com' is known and matches the RSA host key. debug1: Found key in /home/usertest/.ssh/known_hosts:17 debug2: bits set: 500/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/usertest/.ssh/identity ((nil)) debug2: key: /home/usertest/.ssh/id_rsa ((nil)) debug2: key: /home/usertest/.ssh/id_dsa (0x7f904b5ae260) debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password debug3: authmethod_lookup gssapi-with-mic debug3: remaining preferred: publickey,keyboard-interactive,password debug3: authmethod_is_enabled gssapi-with-mic debug1: Next authentication method: gssapi-with-mic debug3: Trying to reverse map address 54.243.101.41. debug1: Unspecified GSS failure. Minor code may provide more information Credentials cache file '/tmp/krb5cc_500' not found debug1: Unspecified GSS failure. Minor code may provide more information Credentials cache file '/tmp/krb5cc_500' not found debug1: Unspecified GSS failure. Minor code may provide more information debug2: we did not send a packet, disable method debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Trying private key: /home/usertest/.ssh/identity debug3: no such identity: /home/usertest/.ssh/identity debug1: Trying private key: /home/usertest/.ssh/id_rsa debug3: no such identity: /home/usertest/.ssh/id_rsa debug1: Offering public key: /home/usertest/.ssh/id_dsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug2: we did not send a packet, disable method debug1: No more authentication methods to try. Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

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CUPS basic auth error through web interface

- by Inaimathi

I'm trying to configure CUPS to allow remote administration through the web interface. There's enough documentation out there that I can figure out what to change in my cupsd.conf (changing Listen localhost:631 to Port 631, and adding Allow @LOCAL to the /, /admin and /admin/conf sections). I'm now at the point where I can see the CUPS interface from another machine on the same network. The trouble is, when I try to Add Printer, I'm asked for a username and password, but my response is rejected even when I know I've gotten it right (I assume it's asking for the username and password of someone in the lpadmin group on the server machine; I've sshed in with credentials its rejecting, and the user I'm using has been added to the lpadmin group). If I disable auth outright, by changing DefaultAuthType Basic to DefaultAuthType None, I get an "Unauthorized" error instead of a password request when I try to Add Printer. What am I doing wrong? Is there a way of letting users from the local network to administer the print server through the CUPS web interface? EDIT: By request, my complete cupsd.conf (spoiler: minimally edited default config file that comes with the edition of CUPS from the Debian wheezy repos): LogLevel warn MaxLogSize 0 SystemGroup lpadmin Port 631 # Listen localhost:631 Listen /var/run/cups/cups.sock Browsing On BrowseOrder allow,deny BrowseAllow all BrowseLocalProtocols CUPS dnssd # DefaultAuthType Basic DefaultAuthType None WebInterface Yes <Location /> Order allow,deny Allow @LOCAL </Location> <Location /admin> Order allow,deny Allow @LOCAL </Location> <Location /admin/conf> AuthType Default Require user @SYSTEM Order allow,deny Allow @LOCAL </Location> # Set the default printer/job policies... <Policy default> # Job/subscription privacy... JobPrivateAccess default JobPrivateValues default SubscriptionPrivateAccess default SubscriptionPrivateValues default # Job-related operations must be done by the owner or an administrator... <Limit Create-Job Print-Job Print-URI Validate-Job> Order deny,allow </Limit> <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document> Require user @OWNER @SYSTEM Order deny,allow </Limit> # All administration operations require an administrator to authenticate... <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # All printer operations require a printer operator to authenticate... <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # Only the owner or an administrator can cancel or authenticate a job... <Limit Cancel-Job CUPS-Authenticate-Job> Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit All> Order deny,allow </Limit> </Policy> # Set the authenticated printer/job policies... <Policy authenticated> # Job/subscription privacy... JobPrivateAccess default JobPrivateValues default SubscriptionPrivateAccess default SubscriptionPrivateValues default # Job-related operations must be done by the owner or an administrator... <Limit Create-Job Print-Job Print-URI Validate-Job> AuthType Default Order deny,allow </Limit> <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document> AuthType Default Require user @OWNER @SYSTEM Order deny,allow </Limit> # All administration operations require an administrator to authenticate... <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # All printer operations require a printer operator to authenticate... <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # Only the owner or an administrator can cancel or authenticate a job... <Limit Cancel-Job CUPS-Authenticate-Job> AuthType Default Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit All> Order deny,allow </Limit> </Policy>

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Login loop in Snow Leopard

- by hgpc

I can't get out of a login loop of a particular admin user. After entering the password the login screen is shown again after about a minute. Other users work fine. It started happening after a simple reboot. Can you please help me? Thank you! Tried to no avail: Change the password Remove the password Repair disk (no errors) Boot in safe mode Reinstall Snow Leopard and updating to 10.6.6 Remove content of ~/Library/Caches Removed content of ~/Library/Preferences Replaced /etc/authorization with Install DVD copy The system.log mentions a crash report. I'm including both below. system.log Jan 8 02:43:30 loginwindow218: Login Window - Returned from Security Agent Jan 8 02:43:30 loginwindow218: USER_PROCESS: 218 console Jan 8 02:44:42 kernel[0]: Jan 8 02:44:43: --- last message repeated 1 time --- Jan 8 02:44:43 com.apple.launchd[1] (com.apple.loginwindow218): Job appears to have crashed: Bus error Jan 8 02:44:43 com.apple.UserEventAgent-LoginWindow223: ALF error: cannot find useragent 1102 Jan 8 02:44:43 com.apple.UserEventAgent-LoginWindow223: plugin.UserEventAgentFactory: called with typeID=FC86416D-6164-2070-726F-70735C216EC0 Jan 8 02:44:43 /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow233: Login Window Application Started Jan 8 02:44:43 SecurityAgent228: CGSShutdownServerConnections: Detaching application from window server Jan 8 02:44:43 com.apple.ReportCrash.Root232: 2011-01-08 02:44:43.936 ReportCrash232:2903 Saved crash report for loginwindow218 version ??? (???) to /Library/Logs/DiagnosticReports/loginwindow_2011-01-08-024443_localhost.crash Jan 8 02:44:44 SecurityAgent228: MIG: server died: CGSReleaseShmem : Cannot release shared memory Jan 8 02:44:44 SecurityAgent228: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged. Jan 8 02:44:44 SecurityAgent228: CGSDisplayServerShutdown: Detaching display subsystem from window server Jan 8 02:44:44 SecurityAgent228: HIToolbox: received notification of WindowServer event port death. Jan 8 02:44:44 SecurityAgent228: port matched the WindowServer port created in BindCGSToRunLoop Jan 8 02:44:44 loginwindow233: Login Window Started Security Agent Jan 8 02:44:44 WindowServer234: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged. Jan 8 02:44:44 com.apple.WindowServer234: Sat Jan 8 02:44:44 .local WindowServer234 <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged. Jan 8 02:44:54 SecurityAgent243: NSSecureTextFieldCell detected a field editor ((null)) that is not a NSTextView subclass designed to work with the cell. Ignoring... Crash report Process: loginwindow 218 Path: /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow Identifier: loginwindow Version: ??? (???) Code Type: X86-64 (Native) Parent Process: launchd [1] Date/Time: 2011-01-08 02:44:42.748 +0100 OS Version: Mac OS X 10.6.6 (10J567) Report Version: 6 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: 0x000000000000000a, 0x000000010075b000 Crashed Thread: 0 Dispatch queue: com.apple.main-thread Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 com.apple.security 0x00007fff801c6e8b Security::ReadSection::at(unsigned int) const + 25 1 com.apple.security 0x00007fff801c632f Security::DbVersion::open() + 123 2 com.apple.security 0x00007fff801c5e41 Security::DbVersion::DbVersion(Security::AppleDatabase const&, Security::RefPointer<Security::AtomicBufferedFile> const&) + 179 3 com.apple.security 0x00007fff801c594e Security::DbModifier::getDbVersion(bool) + 330 4 com.apple.security 0x00007fff801c57f5 Security::DbModifier::openDatabase() + 33 5 com.apple.security 0x00007fff801c5439 Security::Database::_dbOpen(Security::DatabaseSession&, unsigned int, Security::AccessCredentials const*, void const*) + 221 6 com.apple.security 0x00007fff801c4841 Security::DatabaseManager::dbOpen(Security::DatabaseSession&, Security::DbName const&, unsigned int, Security::AccessCredentials const*, void const*) + 77 7 com.apple.security 0x00007fff801c4723 Security::DatabaseSession::DbOpen(char const*, cssm_net_address const*, unsigned int, Security::AccessCredentials const*, void const*, long&) + 285 8 com.apple.security 0x00007fff801d8414 cssm_DbOpen(long, char const*, cssm_net_address const*, unsigned int, cssm_access_credentials const*, void const*, long*) + 108 9 com.apple.security 0x00007fff801d7fba CSSM_DL_DbOpen + 106 10 com.apple.security 0x00007fff801d62f6 Security::CssmClient::DbImpl::open() + 162 11 com.apple.security 0x00007fff801d8977 SSDatabaseImpl::open(Security::DLDbIdentifier const&) + 53 12 com.apple.security 0x00007fff801d8715 SSDLSession::DbOpen(char const*, cssm_net_address const*, unsigned int, Security::AccessCredentials const*, void const*, long&) + 263 13 com.apple.security 0x00007fff801d8414 cssm_DbOpen(long, char const*, cssm_net_address const*, unsigned int, cssm_access_credentials const*, void const*, long*) + 108 14 com.apple.security 0x00007fff801d7fba CSSM_DL_DbOpen + 106 15 com.apple.security 0x00007fff801d62f6 Security::CssmClient::DbImpl::open() + 162 16 com.apple.security 0x00007fff802fa786 Security::CssmClient::DbImpl::unlock(cssm_data const&) + 28 17 com.apple.security 0x00007fff80275b5d Security::KeychainCore::KeychainImpl::unlock(Security::CssmData const&) + 89 18 com.apple.security 0x00007fff80291a06 Security::KeychainCore::StorageManager::login(unsigned int, void const*, unsigned int, void const*) + 3336 19 com.apple.security 0x00007fff802854d3 SecKeychainLogin + 91 20 com.apple.loginwindow 0x000000010000dfc5 0x100000000 + 57285 21 com.apple.loginwindow 0x000000010000cfb4 0x100000000 + 53172 22 com.apple.Foundation 0x00007fff8721e44f __NSThreadPerformPerform + 219 23 com.apple.CoreFoundation 0x00007fff82627401 __CFRunLoopDoSources0 + 1361 24 com.apple.CoreFoundation 0x00007fff826255f9 __CFRunLoopRun + 873 25 com.apple.CoreFoundation 0x00007fff82624dbf CFRunLoopRunSpecific + 575 26 com.apple.HIToolbox 0x00007fff8444493a RunCurrentEventLoopInMode + 333 27 com.apple.HIToolbox 0x00007fff8444473f ReceiveNextEventCommon + 310 28 com.apple.HIToolbox 0x00007fff844445f8 BlockUntilNextEventMatchingListInMode + 59 29 com.apple.AppKit 0x00007fff80b01e64 _DPSNextEvent + 718 30 com.apple.AppKit 0x00007fff80b017a9 -NSApplication nextEventMatchingMask:untilDate:inMode:dequeue: + 155 31 com.apple.AppKit 0x00007fff80ac748b -NSApplication run + 395 32 com.apple.loginwindow 0x0000000100004b16 0x100000000 + 19222 33 com.apple.loginwindow 0x0000000100004580 0x100000000 + 17792 Thread 1: Dispatch queue: com.apple.libdispatch-manager 0 libSystem.B.dylib 0x00007fff8755216a kevent + 10 1 libSystem.B.dylib 0x00007fff8755403d _dispatch_mgr_invoke + 154 2 libSystem.B.dylib 0x00007fff87553d14 _dispatch_queue_invoke + 185 3 libSystem.B.dylib 0x00007fff8755383e _dispatch_worker_thread2 + 252 4 libSystem.B.dylib 0x00007fff87553168 _pthread_wqthread + 353 5 libSystem.B.dylib 0x00007fff87553005 start_wqthread + 13 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x000000010075b000 rbx: 0x00007fff5fbfd990 rcx: 0x00007fff875439da rdx: 0x0000000000000000 rdi: 0x00007fff5fbfd990 rsi: 0x0000000000000000 rbp: 0x00007fff5fbfd5d0 rsp: 0x00007fff5fbfd5d0 r8: 0x0000000000000007 r9: 0x0000000000000000 r10: 0x00007fff8753beda r11: 0x0000000000000202 r12: 0x0000000100133e78 r13: 0x00007fff5fbfda50 r14: 0x00007fff5fbfda50 r15: 0x00007fff5fbfdaa0 rip: 0x00007fff801c6e8b rfl: 0x0000000000010287 cr2: 0x000000010075b000

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Can connect to Samba server but cannot access shares?

- by jlego

I have setup a stand-alone box running Fedora 16 to use as a file-sharing and web development server. Needs to be able to share files with a PC running Windows 7 and a Mac running OSX Snow Leopard. I've setup Samba using the Samba configuration GUI tool. Added users to Fedora and connected them as Samba users (which are the same as the Windows and Mac usernames and passwords). The workgroup name is the same as the Windows workgroup. Authentication is set to User. I've allowed Samba and Samba client through the firewall and set the ethernet to a trusted port in the firewall. Both the Windows and Mac machines can connect to the server and view the shares, however when trying to access the shares, Windows throws error 0x80070035 " Windows cannot access \SERVERNAME\ShareName." Windows user is not prompted for a username or password when accessing the server (found under "Network Places"). This also happens when connecting with the IP rather than the server name. The Mac can also connect to the server and see the shares but when choosing a share gives the error "The original item for ShareName cannot be found." When connecting via IP, the Mac user is prompted for username and password, which when authenticated gives a list of shares, however when choosing a share to connect to, the error is displayed and the user cannot access the share. Since both machines are acting similarly when trying to access the shares, I assume it is an issue with how Samba is configured. smb.conf: [global] workgroup = workgroup server string = Server log file = /var/log/samba/log.%m max log size = 50 security = user load printers = yes cups options = raw printcap name = lpstat printing = cups [homes] comment = Home Directories browseable = no writable = yes [printers] comment = All Printers path = /var/spool/samba browseable = yes printable = yes [FileServ] comment = FileShare path = /media/FileServ read only = no browseable = yes valid users = user1, user2 [webdev] comment = Web development path = /var/www/html/webdev read only = no browseable = yes valid users = user1 How do I get samba sharing working? UPDATE: Before this box I had another box with the same version of fedora installed (16) and samba working for these same computers. I started up the old machine and copied the smb.conf file from the old machine to the new one (editing the share definitions for the new shares of course) and I still get the same errors on both client machines. The only difference in environment is the hardware and the router. On the old machine the router received a dynamic public IP and assigned dynamic private IPs to each device on the network while the new machine is connected to a router that has a static public IP (still dynamic internal IPs though.) Could either one of these be affecting Samba? UPDATE 2: As the directory I am trying to share is actually an entire internal disk, I have tried to things: 1.) changing the owner of the mounted disk from root to my user (which is the same username as on the Windows machine) 2.) made a share that only included one of the folders on the disk instead of the entire disk with my user again as the owner. Both tests failed giving me the same errors regarding the network address. UPDATE 3: Not sure exactly what I did, but now whenever I try to connect to the share on the Windows 7 client I am prompted for my username and password. When I enter the correct credentials I get an access denied message. However I did notice that under the login box "domain: WINDOWS-PC-NAME" is listed. I believe this could very well be the problem. Any suggestions? UPDATE 4: So I've completely reinstalled Fedora and Samba now. I've created a share on the first harddrive (one fedora is installed on) and I can access that fine from Windows. However when I try to share any data on the second disk, I am receiving the same error. This I believe is the problem. I think I need to change some things in fstab or fdisk or something. UPDATE 5: So in fstab I mapped the drive to automount in a folder which works correctly. I also added the samba_share_t SElinux label to the mountpoint directory which now allows me to access the shares on the Windows machine, however I cannot see any of the files in the directory on the windows machine. (They are there, I can see them in the fedora file browser locally) UPDATE 6: Figured it out. See answer below

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