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  • aspx page gives viewstate error

    - by Priya10
    Hi, I have a simple aspx page with one grid view. When deployed on server, and accessed through that machine, it works fine. However, when connected through load balancer, we get this error ( when click on any button). The page however refreshes when pressed F5. Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. Any idea what is happening here???

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  • Seeking assistance with Escaping Data for MySQL queries

    - by JM4
    Please don't send me a link to php.net referencing mysql_real_escape_string as the only response. I have read through the page and while I understand the general concepts, I am having some trouble based on how my INSERT statement is currently built. Today, I am using the following: $sql = "INSERT INTO tablename VALUES ('', '$_SESSION['Member1FirstName'], '$_SESSION['Member1LastName'], '$_SESSION['Member1ID'], '$_SESSION['Member2FirstName'], '$_SESSION['Member2LastName'], '$_SESSION['Member2ID'] .... and the list goes on for 20+ members with some other values entered. It seems most people in the examples already have all their data stored in an array. On my site, I accept form inputs, action="" is set to self, php validation takes place and if validation passes, data is stored into SESSION variables on page 2 then redirected to the next page in the process (page 3) (approximately 8-10 pages in the whole process). thanks!

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  • Will Visual Studio 2010 support HTML 5?

    - by Chris
    Since Visual Studio 2010 is slated for release in March of 2010 and HTML 5 is now starting to be used even more widely, I would like to know if Visual Studio will ship with HTML 5 templates, standard controls and support for the more common markup? A definition for support of HTML 5 would be that any new version of Visual Studio should have similar support for code-completion, validation and markup that is currently supported for HTML 4.01 and XHTML 1.0 and 1.1. Update From the Visual Web Develolper Team Blog: HTML 5 intellisense and validation schema for Visual Studio 2008 and Visual Web Developer is for downloading. Follow the instructions posted on the page to install the new scheme. Seems like the Visual Studio Team will be supporting HTML 5 after all.

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  • What is the proper way to check the previous value of a field before saving an object? (Using Django

    - by anonymous coward
    I have a Django Model with updated_by and an approved_by fields, both are ForeignKey fields to the built-in (auth) User models. I am aware that with updated_by, it's easy enough to simply over-ride the .save() method on the Model, and shove the request.user in that field before saving. However, for approved_by, this field should only ever be filled in when a related field (date_approved) is first filled in. I'm somewhat certain that I can check this logically, and fill in the field if the previous value was empty. What is the proper way to check the previous value of a field before saving an object? I do not anticipate that date_approved will ever be changed or updated, nor should there be any reason to ever update the approved_by entry. UPDATE: Regarding forms/validation, I should have mentioned that none of the fields in question are seen by or editable by users of the site. If I have misunderstood, I'm sorry, but I'm not sure how forms and validation apply to my question.

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  • Jquery Match() IP Address?

    - by user1635970
    I'm using a jquery script to validate form fields. This works well, but I'd like to change the validation of one field to check for IP Addresses. The regex I want to use is : \b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b How do I amend the below to work with this ? (This is how the validation works for email address) jQuery("#Email").validate({ expression: "if (VAL.match(/^[^\\W][a-zA-Z0-9\\_\\-\\.]+([a-zA-Z0-9\\_\\-\\.]+)*\\@[a-zA-Z0-9_]+(\\.[a-zA-Z0-9_]+)*\\.[a-zA-Z]{2,4}$/)) return true; else return false;", message: "Should be a valid Email id" });

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  • Toggle alternative

    - by Nutmeg
    In a contactform I am using both the jQuery validation plug-in 1.3 and the following (slide) script: $(document).ready(function() { // Expand Panel $("#open").click(function(){ $("div#contact").slideDown("slow"); }); // Collapse Panel $("#close").click(function(){ $("div#contact").slideUp("bounce"); }); // Switch buttons from "Log In | Register" to "Close Panel" on click $("#toggle a").click(function () { $("#toggle a").toggle(); }); }); Problem is that the validation plug-in 1.3 uses the following segment: addWrapper:function(toToggle){if(this.settings.wrapper)toToggle.push(toToggle.parents(this.settings.wrapper));return toToggle;}, which conflicts with the slide code. What's the smartest way to go about this? Using the toggleClass instead? Thanks for your help!

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  • Why my jquery is not working for a span tag

    - by Shantanu Gupta
    I am trying to display some message in span. but it is not working. <script type="text/javascript"> $(document).ready(function(){ /****************************First Name validation******************************/ $("#txtFirstName").bind("focusout",function(){ if($(this).val()=="" || $(this).val()=="First Name") { $(this).siblings("span[id*='error']").text("First Name Required"); $(this).val("First Name"); } }); $("#txtFirstName").bind("focusin",function(){ if($(this).val()=="First Name") { $(this).siblings("span[id*='error']").show("slow").text(""); $(this).val(""); } }); /********************End First Name validation*****************************/ }); Here is my html code for above code <td><input id="txtFirstName" type="text" value="First Name" runat="server"/><span class="error"></span></td>

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  • Using xval with fields containing periods

    - by JP
    Hello, I have been using xVal with success for a while but this evening ran into an issue where a field containing a period would not be validated (client or server-side). I am using ASP.NET MVC2 and need to use the period syntax in cases where I am model binding to a list. In the below example I am using a textbox for the sake of simplicity: xVal.AttachValidator(null, { "Fields": [{ "FieldName": "entry[622592].Value", "FieldRules": [{ "RuleName": "Required", "RuleParameters": {}}]}] }, {}) <input type="text" class="text" name="entry[622592].Value"/> If I replace both instances of "entry[622592].Value" to something trivial like "test" then the validation works successfully, but if i leave it this way the validation never appears to fire... Has anyone run into this issue? Thanks in advance!

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  • Design pattern for data entry forms with LINQ2SQL

    - by petebob796
    I am about to start a new winforms data entry application, it already has the database designed which I am comfortable with. I was going to use LINQ2SQL to access the tables to keep things type safe but am now wondering about design patterns, something I am just getting into. Since LINQ is giving me objects to use should I still create classes in between to hold the validation code and helper methods or should these just go in with the UI? It just seems I will end up with classes sat in between with little code which will cause the UI classes to have code just getting and setting values in the intermediate class and returning from validation to flag errors... Any good reading on this? Should I consider the entity framework (or similar) instead?

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  • <Control>.Focus() from server side doesn't scroll into view

    - by George
    Custom Validation Control: <asp:CustomValidator ID="valSex" runat="server" ErrorMessage="1.2 &lt;b&gt;Sex&lt;/b&gt; not specified" EnableClientScript="true" ClientValidationFunction="ValidateSex" SetFocusOnError="True">Selection required</asp:CustomValidator> Client Side validation routine: function ValidateSex(source, args) { var optMale = document.getElementById("<%=optMale.ClientID %>"); var optFemale = document.getElementById("<%=optFemale.ClientID %>"); if (!optMale.checked && !optFemale.checked) { args.IsValid = false; optMale.focus(); } else args.IsValid = true; } When the page is submitted and Sex is not specified, focus is set but the 2 radio buttons are not quite in view, vertical scrolling is required to bring them into view. Shouldn't the Focus() method have brought the focus control into view?

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  • validating radiogroup with perl/cgi

    - by Tyug
    Is it possible to validate a radio group (so something is checked off, or chosen) using server-side validation with Perl? If so, how? I already have it for JavaScript, but I want this form to be able to be submitted even without JavaScript enabled. Thus I will need the validation on the server-side. There is no fixed name for the radio group, it can change, however there must be a name, so that @names = $cgi->param() will give all the names. I'm thinking along something that will give me the type, like the type in JavaScript, to determine if it's a radio button in a group.

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  • need help in positioning

    - by teki
    i am using "beassistance validation" for my form and using tooltip plugin and it work fine except that positioning. please have a look at this link and i upload my form to get an idea what i am talking about. what i want is: if my validation fails i want to display the message after the tooltip icon, but its displaying the message before the tooltip icon. please see here here is the .css i am using: validation .css #aspnetForm { width: 670px; } #aspnetForm label.error { margin-left: 10px; width: auto; display: inline; } form.cmxform { width: 50em; } em.error { background: url("Images/unchecked.gif") no-repeat 0px 0px; padding-left: 16px; } em.success { background: url("Images/checked.gif") no-repeat 0px 0px; padding-left: 16px; } form.cmxform label.error { margin-left: auto; width: 250px; } #aspnetForm label.error { background: url("Images/unchecked.gif") no-repeat 0px 0px; padding-left: 16px; padding-bottom: 2px; font-weight: bold; color: #EA5200; } #aspnetForm label.checked { background: url("Images/checked.gif") no-repeat 0px 0px; } em.error { color: black; } #warning { display: none; } <asp:Label runat="server" ID='Label8' >Start Date:</asp:Label> <asp:TextBox ID="txtStartDate" runat='server' ></asp:TextBox> <a style="cursor: hand" class="tooltip" title="Select the starting date of a visit, example 05/05/2010 (MM/DD/YYYY)!"> <img alt="" src="Scripts/JQuery/Tooltip/icon_tooltip.gif" style="width: 11px; height: 11px" /></a> <p> </p> <asp:Label runat="server" ID='Label9' >End Date:</asp:Label> <asp:TextBox ID="txtEndDate" runat='server' ></asp:TextBox> <a style="cursor: hand" class="tooltip" title="Select the end date of a visit, example 05/06/2010 (MM/DD/YYYY)!"> <img alt="" src="Scripts/JQuery/Tooltip/icon_tooltip.gif" style="width: 11px; height: 11px" /></a> tooltip.css #tooltip{ position:absolute; border:1px solid #333; background:#f7f5d1; padding:2px 5px; color:#333; display:none; }

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  • validate XML with XSD in c++

    - by katl
    Hi! Im pretty new to both XML validation and C++ (more familiar with Java..) so I guess this is a trivial question. If I have a XML file and a XSD schema, how is the best way to validate them? Id like to to this in c++ without using external libraries, or as little libraries as possible, is it possible? Other ideas of how this can be done? I want a simple solution, the output needed is just if the validation i successful or not. Any help is appreciated // Katarina

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  • Any way to not break on certain errors in Visual Studio 2010?

    - by Vulgrin
    I'm working on a VS2010 project where I'm using DataAnnotations on my objects to handle validation. However, this is sort of a pain in the butt while trying to do interactive debugging because it keeps pausing VS.Net on validation errors. Obviously, I want to break on some errors, but not these particular types. Am I out of luck and I just need to turn on and off my Break on All Errors setting? Or is there some way to tell VS to just ignore these when they happen? (these are errors generated via Validator.ValidateProperty calls.) Thanks

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  • Further Details on Vallidating Event not Working....

    - by Sameep
    I have created a custom control that inherit the TextBox, in that control i have override validating event and in validating event i have put validation that checks for the empty field. Now when i use that control on my winform and when i click on save button it immediate fires save event.. the validation event of custom control fires and it displays the error message but still it does not stop the save event to fire.... the save button CauseValidation Property is set to true.. i have also put (this.ValidateChildren()) i have also put CancelEventArgs ce.Cancel = true; in Custom Textbox control but neither working to stop the save event to fires.. i only want to fire Save event if Textbox is not empty. validating event fires, shows message for empty field and immediate fires save event.. now if you got an idea then if you have solution then please provide solution..

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  • Roll back changes to object if invalid

    - by hhravn
    How do i roll back changes to an attached object in nhibernate? We have a validation before update/save (example simplified).. var setting = Get("key") setting.Value = "helo" //for whatever reason, this particular //setting cannot have its value saved to the database ... Verify(setting); //throws base.Update(setting); but since the object is attached, any changes already happened in the session, even if the validation throws, and never reaches Update. What is the proper way to handle this?

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  • How to Upload a file from client to server using OFBIZ?

    - by SIVAKUMAR.J
    Hi all, Im new to ofbiz.So is my question is have any mistake forgive me for my mistakes.Im new to ofbiz so i did not know some terminologies in ofbiz.Sometimes my question is not clear because of lack of knowledge in ofbiz.So try to understand my question and give me a good solution with respect to my level.Because some solutions are in very high level cannot able to understand for me.So please give the solution with good examples. My problem is i created a project inside the ofbiz/hot-deploy folder namely "productionmgntSystem".Inside the folder "ofbiz\hot-deploy\productionmgntSystem\webapp\productionmgntSystem" i created a .ftl file namely "app_details_1.ftl" .The following are the coding of this file <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> <script TYPE="TEXT/JAVASCRIPT" language=""JAVASCRIPT"> function uploadFile() { //alert("Before calling upload.jsp"); window.location='<@ofbizUrl>testing_service1</@ofbizUrl>' } </script> </head> <!-- <form action="<@ofbizUrl>testing_service1</@ofbizUrl>" enctype="multipart/form-data" name="app_details_frm"> --> <form action="<@ofbizUrl>logout1</@ofbizUrl>" enctype="multipart/form-data" name="app_details_frm"> <center style="height: 299px; "> <table border="0" style="height: 177px; width: 788px"> <tr style="height: 115px; "> <td style="width: 103px; "> <td style="width: 413px; "><h1>APPLICATION DETAILS</h1> <td style="width: 55px; "> </tr> <tr> <td style="width: 125px; ">Application name : </td> <td> <input name="app_name_txt" id="txt_1" value=" " /> </td> </tr> <tr> <td style="width: 125px; ">Excell sheet &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: </td> <td> <input type="file" name="filename"/> </td> </tr> <tr> <td> <!-- <input type="button" name="logout1_cmd" value="Logout" onclick="logout1()"/> --> <input type="submit" name="logout_cmd" value="logout"/> </td> <td> <!-- <input type="submit" name="upload_cmd" value="Submit" /> --> <input type="button" name="upload1_cmd" value="Upload" onclick="uploadFile()"/> </td> </tr> </table> </center> </form> </html> the following coding is present in the file "ofbiz\hot-deploy\productionmgntSystem\webapp\productionmgntSystem\WEB-INF\controller.xml" ...... ....... ........ <request-map uri="testing_service1"> <security https="true" auth="true"/> <event type="java" path="org.ofbiz.productionmgntSystem.web_app_req.WebServices1" invoke="testingService"/> <response name="ok" type="view" value="ok_view"/> <response name="exception" type="view" value="exception_view"/> </request-map> .......... ............ .......... <view-map name="ok_view" type="ftl" page="ok_view.ftl"/> <view-map name="exception_view" type="ftl" page="exception_view.ftl"/> ................ ............. ............. The following are the coding present in the file "ofbiz\hot-deploy\productionmgntSystem\src\org\ofbiz\productionmgntSystem\web_app_req\WebServices1.java" package org.ofbiz.productionmgntSystem.web_app_req; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.DataInputStream; import java.io.FileOutputStream; import java.io.IOException; public class WebServices1 { public static String testingService(HttpServletRequest request, HttpServletResponse response) { //int i=0; String result="ok"; System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- Start"); String contentType=request.getContentType(); System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- contentType : "+contentType); String str=new String(); // response.setContentType("text/html"); //PrintWriter writer; if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) { System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) after if (contentType != null)"); try { // writer=response.getWriter(); System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - try Start"); DataInputStream in = new DataInputStream(request.getInputStream()); int formDataLength = request.getContentLength(); byte dataBytes[] = new byte[formDataLength]; int byteRead = 0; int totalBytesRead = 0; //this loop converting the uploaded file into byte code while (totalBytesRead < formDataLength) { byteRead = in.read(dataBytes, totalBytesRead,formDataLength); totalBytesRead += byteRead; } String file = new String(dataBytes); //for saving the file name String saveFile = file.substring(file.indexOf("filename=\"") + 10); saveFile = saveFile.substring(0, saveFile.indexOf("\n")); saveFile = saveFile.substring(saveFile.lastIndexOf("\\")+ 1,saveFile.indexOf("\"")); int lastIndex = contentType.lastIndexOf("="); String boundary = contentType.substring(lastIndex + 1,contentType.length()); int pos; //extracting the index of file pos = file.indexOf("filename=\""); pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; int boundaryLocation = file.indexOf(boundary, pos) - 4; int startPos = ((file.substring(0, pos)).getBytes()).length; int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length; //creating a new file with the same name and writing the content in new file FileOutputStream fileOut = new FileOutputStream("/"+saveFile); fileOut.write(dataBytes, startPos, (endPos - startPos)); fileOut.flush(); fileOut.close(); System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - try End"); } catch(IOException ioe) { System.out.println("\n\n\t*********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - Catch IOException"); //ioe.printStackTrace(); return("exception"); } catch(Exception ex) { System.out.println("\n\n\t*********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - Catch Exception"); return("exception"); } } else { System.out.println("\n\n\t********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) else part"); result="exception"; } System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- End"); return(result); } } I want to upload a file to the server.The file is get from user "<input type="file"..> tag in the "app_details_1.ftl" file & it is updated into the server by using the method "testingService(HttpServletRequest request, HttpServletResponse response)" in the class "WebServices1".But the file is not uploaded. Give me a good solution for uploading a file to the server. Thanks & Regards, Sivakumar.J

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  • Bypass DNSSEC for local Stub zones

    - by Starsky
    I am using bind 9.9.2 as a DNSSEC validating recursive resolver in an Internet DMZ. I want to point to my internal DNS servers as stub zones (ideally) or anything except slave zones (to avoid very large zone transfers). We use a routable ip space for our Internal addressing. Sorry if I am using an IP space that you own in my example, but 167.x.x.x is the first zone I found that fits my issue. E.G dnssec-enable yes; dnssec-validation yes; dnssec-accept-expired no; zone "16.172.in-addr.arpa" { type stub; masters { 167.255.1.53; } } zone "myzone.com" in { type stub; masters { 167.255.1.53; } } When queries hit the DNS server, they attempt at being validated, and fail because 167.in-addr.arpa HAS an RRSIG record, but sub zones do not (and should not!). Google dns is used in this example, but in reality it would be my recursive resolver. @8.8.8.8 -x 167.255.1.53 +dnssec ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17488 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags: do; udp: 512 ;; QUESTION SECTION: ;53.1.255.167.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: 167.in-addr.arpa. 1800 IN SOA z.arin.net. dns-ops.arin.net. 2013100713 1800 900 691200 10800 167.in-addr.arpa. 1800 IN RRSIG SOA 5 3 86400 20131017160124 20131007160124 812 167.in-addr.arpa. Lcl8sCps7LapnAj4n403KXx7A3GO7+2z/9Q2R2mwkh9FL26iDx7GlU4+ NufGd92IEJCdBu9IgcZP4I9QcKi8DI28og27WrfKd5moSl/STj02GliS qPTfNiewmTTIDw5++IlhITbp+CoJuZCRCdDbyWKmd5NSLcbskAwbCVlO vVA= 167.in-addr.arpa. 10800 IN NSEC 1.167.in-addr.arpa. NS SOA TXT RRSIG NSEC DNSKEY 167.in-addr.arpa. 10800 IN RRSIG NSEC 5 3 10800 20131017160124 20131007160124 812 167.in-addr.arpa. XALsd59i+XGvCIzjhTUFXcr11/M8prcaaPQ5yFSbvP9TzqjJ3wpizvH6 202MdrIWbsT1Dndri49lHKAXgBQ5OOsUmOh+eoRYR5okxRO4VLc5Tkze Gh0fQLcwGXPuv9A4SFNIrNyi3XU4Qvq0cViKXIuEGTa3C+zMPuvc0her oKk= 254.167.in-addr.arpa. 10800 IN NSEC 26.167.in-addr.arpa. NS RRSIG NSEC 254.167.in-addr.arpa. 10800 IN RRSIG NSEC 5 4 10800 20131017160124 20131007160124 812 167.in-addr.arpa. xnsLBTnPhdyABdvqtEHPxa6Y6NASfYAWfW1yYlNliTyV8TFeNOqewjwj nY43CWD77ftFDDQTLFEOPpV5vwmnUGYTRztK+kB5UrlflhPgiqYiBaBD RQaFQ8DIKaof8/snusZjK7aNmfe09t9gRcaX/pXn3liKz7m/ggxZi0f9 xo0= ;; Query time: 31 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Mon Oct 7 16:52:59 2013 ;; MSG SIZE rcvd: 722 Is there a way to bypass DNSSEC validation for specific zones? Any zone that I host internally, I do not want DNSSEC validation performed on. I have only see this interfere w/ certain reverse zones where the top level has DS/RRSIG records. Thanks.

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  • Revover original email from Sendmail log

    - by Xavi Colomer
    I have a website the contact form has been failing silently for two weeks (Wordpress + Contact form 7). Apparently updating to Contact Form 7 made the assigned email to fail [email protected], I also tested with [email protected] and it also failed until I tried with gmail and it finally worked. Apparently @telefonica.net and @me.com domains are not working with this version of the plugin, but I have to investigate the cause. I found the logs of the lost emails, but I would like to know If I can recover the sender or the content of the original messages. May 24 23:41:11 localhost sendmail[27653]: s4P3fBc3027653: from=www-data, size=3250, class=0, nrcpts=1, msgid=<[email protected]_web.com>, relay=www-data@localhost May 24 23:41:11 localhost sm-mta[27655]: s4P3fBdA027655: from=<[email protected]>, size=3359, class=0, nrcpts=1, msgid=<[email protected]_web.com>, proto=ESMTP, daemon=MTA-v4, relay=localhost.localdomain [127.0.0.1] May 24 23:41:11 localhost sendmail[27653]: s4P3fBc3027653: [email protected], ctladdr=www-data (33/33), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=33250, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (s4P3fBdA027655 Message accepted for delivery) May 24 23:41:12 localhost sm-mta[27657]: s4P3fBdA027655: to=<[email protected]>, ctladdr=<[email protected]> (33/33), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=123359, relay=tnetmx.telefonica.net. [86.109.99.69], dsn=5.0.0, stat=Service unavailable May 24 23:41:12 localhost sm-mta[27657]: s4P3fBdA027655: s4P3fCdA027657: DSN: Service unavailable May 24 23:41:12 localhost sm-mta[27657]: s4P3fCdA027657: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30000, dsn=2.0.0, stat=Sent Thanks

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  • IPtables - Accept Arbitrary Packets

    - by Asad Moeen
    I've achieved a lot on blocking attacks on GameServers but I'm stuck on something. I've blocked major requests of game-server which it aceepts in the form "\xff\xff\xff\xff" which can be followed by the actual queries like get status or get info to make something like "\xff\xff\xff\xff getstatus " but I see other queries if sent to the game-server will cause it to reply with a "disconnect" packet with the same rate as input so if the input rate is high then the high output of "disconnect" might give lag to the server. Hence I want to block all queries except the ones actual clients use which I suppose are in the form "\xff\xff\xff\xff" or .... so, I tried using this rule : -A INPUT -p udp -m udp -m u32 ! --u32 0x1c=0xffffffff -j ACCEPT -A INPUT -p udp -m udp -m recent --set --name Total --rsource -A INPUT -p udp -m udp -m recent --update --seconds 1 --hitcount 20 --name Total --rsource -j DROP Now where the rule does accept the clients but it only blocks requests in the form "\xff\xff\xff\xff getstatus " ( by which GameServer replies with status ) and not just "getstatus " ( by which GameServer replies with disconnect packet ). So I suppose the accept rule is accepting the simple "string" as well. I actually want it to also block the non-(\xff) queries. So how do I modify the rule?

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  • Which type RAM support Our Servers?

    - by Mikunos
    I need to increase the RAM in our DELL servers but with the lshw I cannot see if the RAM installed is a UDIMM or RDIMM. Handle 0x1100, DMI type 17, 28 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 72 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: 1 Locator: DIMM_A1 Bank Locator: Not Specified Type: <OUT OF SPEC> Type Detail: Synchronous Speed: 1333 MHz (0.8 ns) Manufacturer: 00CE00B380CE Serial Number: 8244850B Asset Tag: 02103961 Part Number: M393B5773CH0-CH9 Handle 0x1101, DMI type 17, 28 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 72 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: 1 Locator: DIMM_A2 Bank Locator: Not Specified Type: <OUT OF SPEC> Type Detail: Synchronous Speed: 1333 MHz (0.8 ns) Manufacturer: 00CE00B380CE Serial Number: 8244855D Asset Tag: 02103961 Part Number: M393B5773CH0-CH9 Handle 0x1102, DMI type 17, 28 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 72 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: 2 Locator: DIMM_A3 Bank Locator: Not Specified Type: <OUT OF SPEC> Type Detail: Synchronous Speed: 1333 MHz (0.8 ns) Manufacturer: 00CE00B380CE Serial Number: 8244853E Asset Tag: 02103961 Part Number: M393B5773CH0-CH9 how have we do to know which is the right RAM memory to buy? thanks

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  • Get Safari to use different autocompletion on different URLs on same hostname

    - by Luke404
    I have a webserver publishing different services over the same SSL VirtualHost, the two most commonly used being PhpMyAdmin and Cacti. These (and others) use 'cookie' style authentication, asking user and password in an HTML form (thus not using HTTP Authentication). Being on the same hostname, the Safari browser didn't manage too well stored passwords: if I login to one app with user foo, and then go to app two it would propose me user foo and its password in the login form. Changing just the username to bar used to be sufficient to let Safari autocomplete the correct password in its form field. Annoying, but I could live with it - usernames are short and easy to remember when compared to the passwords we use. After the update to safari5 this seems to be no longer true: if I store in safari (actually user keychain on OSX) credentials for https://www.foobarbaz.com/app1 AND credentials for https://www.foobarbaz.com/app2 there seem to be no way for it to autocomplete both based on the url. Even editing the keychain to add the path (it will store only the hostname by default) does not help. Is there anything I can do to let it work the way I want while still keeping everything on one hostname? Modifying anything server side is of course possible, but I can't switch apps to HTTP Auth (and not every one will support it anyway) to use different 'realms'.

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  • Multi- authentication scenario for a public internet service using Kerberos

    - by StrangeLoop
    I have a public web server which has users coming from internet (via HTTPS) and from a corporate intranet. I wish to use Kerberos authentication for the intranet users so that they would be automatically logged in the web application without the need to provide any login/password (assuming they are already logged to the Windows domain). For the users coming from internet I want to provide traditional basic/form- based authentication. User/password data for these users would be stored internally in a database used by the application. Web application will be configured to use Kerberos authentication for users coming from specific intranet ip networks and basic/form- based authentication will be used for the rest of the users. From a security perspective, are there some risks involved in this kind of setup or is this a generally accepted solution? My understanding is that server doesn't need access to KDC (see Kerberos authentication, service host and access to KDC) and it can be completely isolated from AD and corporate intranet. The server has a keytab file stored locally that is used to decrypt tickets sent by the users coming from intranet. The tickets only contain username and domain of the incoming user. Server never sees the passwords of authenticated users. If the server would be hacked and the keytab file compromised, it would mean that attacker could forge tickets for any domain user and get access to the web application as any user. But typically this is the case anyway if hacker gains access to the keytab file on the local filesystem. The encryption key contained in the keytab file is based on the service account password in AD and is in hashed form, I guess it is very difficult to brute force this password if strong Kerberos encryption like AES-256-SHA1 is used. As the server has no network access to intranet, even the compromised service account couldn't be directly used for anything.

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