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  • Cannot install Apache Web Server on Ubuntu, Amazon WS

    - by Eugene Retunsky
    I enter command apt-get install apache2 --fix-missing (under the root user) and this is what I receive: Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: apache2-mpm-worker apache2-utils apache2.2-bin apache2.2-common libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap ssl-cert Suggested packages: apache2-doc apache2-suexec apache2-suexec-custom openssl-blacklist The following NEW packages will be installed: apache2 apache2-mpm-worker apache2-utils apache2.2-bin apache2.2-common libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap ssl-cert 0 upgraded, 10 newly installed, 0 to remove and 36 not upgraded. Need to get 2,945 kB/3,141 kB of archives. After this operation, 10.4 MB of additional disk space will be used. Do you want to continue [Y/n]? y Err http://us-west-1.ec2.archive.ubuntu.com/ubuntu/ oneiric-updates/main apache2.2-bin i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 10.161.51.124 80] Err http://security.ubuntu.com/ubuntu/ oneiric-security/main apache2.2-bin i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 91.189.92.167 80] Err http://security.ubuntu.com/ubuntu/ oneiric-security/main apache2-utils i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 91.189.92.167 80] Err http://security.ubuntu.com/ubuntu/ oneiric-security/main apache2.2-common i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 91.189.92.167 80] Err http://security.ubuntu.com/ubuntu/ oneiric-security/main apache2-mpm-worker i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 91.189.92.167 80] Err http://security.ubuntu.com/ubuntu/ oneiric-security/main apache2 i386 2.2.20-1ubuntu1.1 404 Not Found [IP: 91.189.92.167 80] Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/a/apache2/apache2.2-bin_2.2.20-1ubuntu1.1_i386.deb 404 Not Found [IP: 91.189.92.167 80] Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/a/apache2/apache2-utils_2.2.20-1ubuntu1.1_i386.deb 404 Not Found [IP: 91.189.92.167 80] Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/a/apache2/apache2.2-common_2.2.20-1ubuntu1.1_i386.deb 404 Not Found [IP: 91.189.92.167 80] Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/a/apache2/apache2-mpm-worker_2.2.20-1ubuntu1.1_i386.deb 404 Not Found [IP: 91.189.92.167 80] Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/a/apache2/apache2_2.2.20-1ubuntu1.1_i386.deb 404 Not Found [IP: 91.189.92.167 80] Unable to correct missing packages. E: Aborting install. Any help is appreciated.

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  • problem with crawl many url in .net: Server IP not ping. maybe bandwidth or http connection limit ex

    - by Hamid
    Hi to all I develop web crawling service (windows service / multi-thread) . its work fine, but sometimes my server network not response. and i can't ping server IP (from internet), but can ping by other network card (local ip) that not access to internet. after i open server with remote desktop and stop crawling service. i could ping. What's my problem? Bandwidth limit or max connection limit exceed or ??? how to prevent this issue? Note: when this problem occur, i open browser for browse web site, but can't open any website!!! Could you please help me. Thanks in advanced

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  • How do I add IPv6 address into System32\drivers\etc\hosts?

    - by Evgenyt
    There is already by default, and it works (Win 7): ::1 localhost This also works (testing with ping): ::1 hosta But when I'm trying to add something non-loopback, it doesn't resolve: fe80::215:afff:fec6:ea64 realhost So that I can do: C:>ping fe80::215:afff:fec6:ea64 Reply from fe80::215:afff:fec6:ea64: time=2ms But can't go with hostname that I put in hosts: C:>ping realhost Ping request could not find host realhost. ... Any way to add an IPv6 address to hosts in Windows?

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  • Can I use a static cache Helper method in a NET MVC controller?

    - by Euston
    I realise there have been a few posts regarding where to add a cache check/update and the separation of concerns between the controller, the model and the caching code. There are two great examples that I have tried to work with but being new to MVC I wonder which one is the cleanest and suits the MVC methodology the best? I know you need to take into account DI and unit testing. Example 1 (Helper method with delegate) ...in controller var myObject = CacheDataHelper.Get(thisID, () => WebServiceServiceWrapper.GetMyObjectBythisID(thisID)); Example 2 (check for cache in model class) in controller var myObject = WebServiceServiceWrapper.GetMyObjectBythisID(thisID)); then in model class.............. if (!CacheDataHelper.Get(cachekey, out myObject)) { //do some repository processing // Add obect to cache CacheDataHelper.Add(myObject, cachekey); } Both use a static cache helper class but the first example uses a method signature with a delegate method passed in that has the name of the repository method being called. If the data is not in cache the method is called and the cache helper class handles the adding or updating to the current cache. In the second example the cache check is part of the repository method with an extra line to call the cache helper add method to update the current cache. Due to my lack of experience and knowledge I am not sure which one is best suited to MVC. I like the idea of calling the cache helper with the delegate method name in order to remove any cache code in the repository but I am not sure if using the static method in the controller is ideal? The second example deals with the above but now there is no separation between the caching check and the repository lookup. Perhaps that is not a problem as you know it requires caching anyway?

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  • Geolocation and jQuery - Can't post results using ajax

    - by etombaugh
    I'm currently working on a project to make a location-aware site. In essence, the user comes to the page, and their location is found using the HTML5 method and then using jQuery, the location is posted to a page which saves the location/address to a codeigniter session, but if they want to update their location, or change to a different location(IE they want to use their work address as the location instead of their present address), theres a jQuery colorbox that displays and lets them type in a custom address. Everything works flawlessly to get the initial location, but when I try and get the updated location saved, I receive the error "Uncaught TypeError: Object [object DOMWindow] has no method 'lat'" which then Google Chrome references as being an error not in jQuery, but in the file for Google Maps API. Any suggestions? jQuery('.inputsubmit').click(function() { //Takes values from user submitted fields and parses them into an address string var street = jQuery('.inputaddress').val(); var city = jQuery('.inputcity').val(); var state = jQuery('.inputstate').val(); var address = street +" "+ city +", " +state; geocoder = new google.maps.Geocoder(); var geocoderresult= geocoder.geocode({'address': address}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { var newlocation = results[0].geometry.location; //Posts coordinates and address string to a CodeIgniter function to update users session information jQuery.post("somepage", {location: newlocation, address: address},function(data) { alert("Data Loaded: " + data); }); } else { alert("Geocoder failed due to: " + status); } }); }); I've tried everything I can think of to get the post to work. All of the code works up till the point, and I've commented out the post line and everything works correctly. This is one of our main website's features, to provide instant and quick results based off of location. Thanks!

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  • Can EC2 instances be set up to come from different IP ranges?

    - by Joshua Frank
    I need to run a web crawler and I want to do it from EC2 because I want the HTTP requests to come from different IP ranges so I don't get blocked. So I thought distributing this on EC2 instances might help, but I can't find any information about what the outbound IP range will be. I don't want to go to the trouble of figuring out the extra complexity of EC2 and distributed data, only to find that all the instances use the same address block and I get blocked by the server anyway. NOTE: This isn't for a DoS attack or anything. I'm trying to harvest data for a legitimate business purpose, I'm respecting robots.txt, and I'm only making one request per second, but the host is still shutting me down. Edit: Commenter Paul Dixon suggests that the act of blocking even my modest crawl indicates that the host doesn't want me to crawl them and therefore that I shouldn't do it (even assuming I can work around the blocking). Do people agree with this?

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  • How do I get save (no exclamation point) semantics in an ActiveRecord transaction?

    - by James A. Rosen
    I have two models: Person and Address which I'd like to create in a transaction. That is, I want to try to create the Person and, if that succeeds, create the related Address. I would like to use save semantics (return true or false) rather than save! semantics (raise an ActiveRecord::StatementInvalid or not). This doesn't work because the user.save doesn't trigger a rollback on the transaction: class Person def save_with_address(address_options = {}) transaction do self.save address = Address.build(address_options) address.person = self address.save end end end (Changing the self.save call to an if self.save block around the rest doesn't help, because the Person save still succeeds even when the Address one fails.) And this doesn't work because it raises the ActiveRecord::StatementInvalid exception out of the transaction block without triggering an ActiveRecord::Rollback: class Person def save_with_address(address_options = {}) transaction do save! address = Address.build(address_options) address.person = self address.save! end end end The Rails documentation specifically warns against catching the ActiveRecord::StatementInvalid inside the transaction block. I guess my first question is: why isn't this transaction block... transacting on both saves?

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  • RMI applet is making requests on random ports and blocked consequently

    - by Dan
    /// I have set up RMI system successfully on local ubuntu srver. Registry port 1099 and remote object export on 1100(fixed by calling super(1100)) Now I am trying to make it work on Ubuntu over internet with a public IP. I could bind service properly with public ip.But the client applet is trying to connect to ubuntu server at random ports. Below is the error thrown by client applet: // Exception network: Connecting public-ip:1100 with proxy=DIRECT network: Connecting public-ip/cgi-bin/java-rmi.cgi?forward=1099 with proxy=DIRECT network: Connecting public-ip:3733 with proxy=DIRECT network: Connecting public-ip:3721 with proxy=DIRECT // java.rmi.ConnectException: Connection refused to host: public-ip; nested exception is: java.net.ConnectException: Connection refused: connect at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)Source) at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ... // // I have only 2 ports open on server, i.e., 1099(registry) and 1100(export). How can I fix ports in applet requests such that it does always connect server on same open port? // // Another issue.As I have bound service on public IP i.e. //public-ip:1099/ServiceName, a job running on server to send message to clinets is not able to make request to RMI service. public-ip URL does not work on same machine,i.e., server.Do you think I should use fixed socket factory?If so please give me code snippet and guide me how i can set it up. //Exception java.rmi.ConnectException: Connection refused to host: public-ip; nested exception is: java.net.ConnectException: Connection refused at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:128) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:194) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:148) at $Proxy5.getUserID(Unknown Source) at rmi.source.xxxxxx$JobScheduler.run(xxxxServerImpl.java:293) at java.util.TimerThread.mainLoop(Timer.java:555) at java.util.TimerThread.run(Timer.java:505) Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:337) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:198) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.(Socket.java:425) at java.net.Socket.(Socket.java:208) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) ... 9 more Coould you please help me? Thanks a lot in advance. Dan

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  • Why does a sub-class class of a class have to be static in order to initialize the sub-class in the

    - by Alex
    So, the question is more or less as I wrote. I understand that it's probably not clear at all so I'll give an example. I have class Tree and in it there is the class Node, and the empty constructor of Tree is written: public class RBTree { private RBNode head; public RBTree(RBNode head,RBTree leftT,RBTree rightT){ this.head=head; this.head.leftT.head.father = head; this.head.rightT.head.father = head; } public RBTree(RBNode head){ this(head,new RBTree(),new RBTree()); } public RBTree(){ this(new RBNode(),null,null); } public class RBNode{ private int value; private boolean isBlack; private RBNode father; private RBTree leftT; private RBTree rightT; } } Eclipse gives me the error: "No enclosing instance of type RBTree is available due to some intermediate constructor invocation" for the "new RBTree()" in the empty constructor. However, if I change the RBNode to be a static class, there is no problem. So why is it working when the class is static. BTW, I found an easy solution for the cunstructor: public RBTree(){ this.head = new RBNode(); } So, I have no idea what is the problem in the first piece of code.

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  • Adjust static value into dynamic (javascript) value possible in Sharepoint allitems.aspx page?

    - by lerac
    <SharePoint:SPDataSource runat="server" IncludeHidden="true" SelectCommand="&lt;View&gt;&lt;Query&gt;&lt;OrderBy&gt;&lt;FieldRef Name=&quot;EventDate&quot;/&gt;&lt;/OrderBy&gt;&lt;Where&gt;&lt;Contains&gt;&lt;FieldRef Name=&quot;lawyer_x0020_1&quot;/&gt;&lt;Value Type=&quot;Note&quot;&gt;F. Sanches&lt;/Value&gt;&lt;/Contains&gt;&lt;/Where&gt;&lt;/Query&gt;&lt;/View&gt;" id="datasource1" DataSourceMode="List" UseInternalName="true"><InsertParameters><asp:Parameter DefaultValue="{ANUMBER}" Name="ListID"></asp:Parameter> This codeline is just one line of the allitems.aspx of a sharepoint list item. It only displays items where lawyer 1 = F. Sanches. Before I start messing around with the .ASPX page I wonder if it possible to change F. Sanches (in the code) into a dynamical variable (from a javascript value or something else that can be used to place the javascript value in there dynamically). If I put any javascript code in the line it will not work. P.S. Ignore ANUMBER part in code. Let say to make it simple I have javascript variable like this (now static but with my other code it is dynamic). It would be an achievement if it would place a static javascript variable. <SCRIPT type=text/javascript>javaVAR = "P. Janssen";</script> If Yes -- how? If No -- Thank you!

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  • jQuery removing elements from DOM put still reporting as present

    - by RyanP13
    Hi, I have an address finder system whereby a user enters a postcode, if postcode is validated then an address list is returned and displayed, they then select an address line, the list dissappears and then the address line is split further into some form inputs. The issue i am facing is when they have been through the above process then cleared the postcode form field, hit the find address button and the address list re-appears. Event though the list and parent tr have been removed from the DOM it is still reporting it is present as length 1? My code is as follows: jQuery // when postcode validated display box var $addressList = $("div#selectAddress > ul").length; // if address list present show the address list if ($addressList != 0) { $("div#selectAddress").closest("tr").removeClass("hide"); } // address list hidden by default // if coming back to modify details then display address inputs var $customerAddress = $("form#detailsForm input[name*='customerAddress']"); var $addressInputs = $.cookies.get('cpqbAddressInputs'); if ($addressInputs) { if ($addressInputs == 'visible') { $($customerAddress).closest("tr").removeClass("hide"); } } else { $($customerAddress).closest("tr").addClass("hide"); } // Need to change form action URL to call post code web service $("input.findAddress").live('click', function(){ var $postCode = encodeURI($("input#customerPostcode").val()); if ($postCode != "") { var $formAction = "customerAction.do?searchAddress=searchAddress&custpc=" + $postCode; $("form#detailsForm").attr("action", $formAction); } else { alert($addressList);} }); // darker highlight when li is clicked // split address string into corresponding inputs $("div#selectAddress ul li").live('click', function(){ $(this).removeClass("addressHover"); //$("li.addressClick").removeClass("addressClick"); $(this).addClass("addressClick"); var $splitAddress = $(this).text().split(","); $($customerAddress).each(function(){ var $inputCount = $(this).index("form#detailsForm input[name*='customerAddress']"); $(this).val($splitAddress[$inputCount]); }); $($customerAddress).closest("tr").removeClass("hide"); $.cookies.set('cpqbAddressInputs', 'visible'); $(this).closest("tr").fadeOut(250, function() { $(this).remove(); }); });

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  • How do I get client ip address using TcpClient?

    - by brendan
    I am using TcpClient to listen on a port for requests. When the requests come in from the client I want to know the client ip making the request. I've tried: Console.WriteLine(tcpClient.Client.RemoteEndPoint.ToString()); Console.WriteLine(tcpClient.Client.LocalEndPoint.ToString()); var networkStream = tcpClient.GetStream(); var pi = networkStream.GetType().GetProperty("Socket", BindingFlags.NonPublic | BindingFlags.Instance); var socketIp = ((Socket)pi.GetValue(networkStream, null)).RemoteEndPoint.ToString(); Console.WriteLine(socketIp); All of these addresses output 10.x.x.x addresses which are private addresses and are clearly not the address of the clients off my network making the requests. What can I do to get the public ip of the clients making the requests?

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  • Error: "an object reference is required for the non-static field, method or property..."

    - by user300484
    Hi! Im creating an application on C#. Its function is to evualuate if a given is prime and if the same swapped number is prime as well. When I build my solution on Visual Studio, it says that "an object reference is required for the non-static field, method or property...". Im having this problem with the "volteado" and "siprimo" methods. Can you tell me where is the problem and how i can fix it? thank you! namespace ConsoleApplication1 { class Program { static void Main(string[] args) { Console.Write("Write a number: "); long a= Convert.ToInt64(Console.ReadLine()); // a is the number given by the user long av = volteado(a); // av is "a" but swapped if (siprimo(a) == false && siprimo(av) == false) Console.WriteLine("Both original and swapped numbers are prime."); else Console.WriteLine("One of the numbers isnt prime."); Console.ReadLine(); } private bool siprimo(long a) {// evaluate if the received number is prime bool sp = true; for (long k = 2; k <= a / 2; k++) if (a % k == 0) sp = false; return sp; } private long volteado(long a) {// swap the received number long v = 0; while (a > 0) { v = 10 * v + a % 10; a /= 10; } return v; } } }

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  • What server log file(with Centos5) must I check to locate specific IP activity?

    - by makmour
    Hi! I leasing a dedi server under Centos5, just recently I ve setup a blog website that grabs feeds from other news websites and presents them on my blog. Some days after I see high server loads that cant be coming just from the cron jobs that I run every now and then to grab feeds from other websites for my blog website. Thats why I m trying to pico some log files in order to have a better look the whole problem. These last days I noticed(from statscounter service) the same IP address visiting my blog website many times per day so I want to find out what us trying to do. I tried looking in all /var/log log files and httpd too but no luck. Is there any other log file I should open or any other procedure to track this IP acivity on server?

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