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  • Linux installation analysis

    - by blunders
    "Ending company IT Admin relationship" has a good checklist for taking over an existing IT system, but I'm wondering as it relates to Linux: What is the most effective way to assess the scope of existing custom configurations, installs, scripts, etc done? Is there any software that will check if the kernel, system files, etc mirror the default files for the version installed? At this point I don't know what distro of Linux the server (though using Netcraft I do know the server appears to be Linux) -- so it's possible without knowing that information that this would be a hard question to answer.

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  • Recommendations for keeping a build server updated

    - by gareth_bowles
    As a guy who frequently switches between QA, build and operations, I keep running into the issue of what to do about operating system updates on the build server. The dichotomy is the same on Windows, Linux, MacOS or any other o/s that can update itself via the internet: The QA team wants to keep the build server exactly as it is from the beginning of the product release cycle to the end, since installing updates could destabilize the server and means that successive builds aren't made against the same baseline. The ops team wants the software to be deployed on a system with all the latest security patches; this can mean that the software isn't deployed on exactly the same version of the o/s that it was built on. I usually mitigate this by taking release candidate builds and installing them on a test server that has a completely up-to-date o/s, repeating the automated tests that are run on the build server and doing some additional system level testing to make sure everything looks good before deployment. However, this seems inefficient to me; does anyone have a better way ?

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  • Vertical-centering and overflow Excel-style in CSS?

    - by Eric Grange
    Is there a way to perform a vertical centering of a variable-sized multi-line content within a fixed-size div, with hidden overflow? The aim would be to reproduce what you can see in Excel cells: when the content fits the container, it should be vertically centered, when it is larger, the parts that overflow should be hidden (and the content still vertically aligned), like in an Excel cell whose neighbours aren't empty. I know how to vertically center using CSS, I know how to hide overflow when the content isn't vertically centered, but I've no idea how to do both at the same time... Is Javascript the only answer? The trick is that CSS positioning approaches don't work with variable-sized content (my content is dynamic text), and when you use display:table-cell, it effectively disables CSS overflow control (and the container grows to accomodate the content).

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  • C# Speech Recognition

    - by fonix232
    I am making a Smart House Control System right now, and I have a little problem. I was thinking on using Cosmos for a base system, and adding the needed namespace libraries to it, but as the usual System.Speech.Recognition namespace depends too much on Windows Speech API, I have to forget about using it. So my question is, is there any (free if possible) voice recognition and/or speech speech synthesizer library for C#, what has the following: support for multi-language speaking extracting text content from speech sample synthesizing speech with selectable (or user-written) speech pattern (voice) A general usage, non-windows dependent library would be the best, and of course, if it was free too.

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  • method to change apache config via the shell with whm/cpanel

    - by Chiggsy
    How can I make changes to the apache config on a whm/cpanel setup from the shell and have them integrate properly? I read the theory of the config system and regardless of my feelings on the matter I understand where they are coming from. Still, in that world view, there must be a way to interact with the system from a command line interface, right?

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  • Double interpolation of regular expressions in Perl

    - by tomdee
    I have a Perl program that stores regular expressions in configuration files. They are in the form: regex = ^/d+$ Elsewhere, the regex gets parsed from the file and stored in a variable - $regex. I then use the variable when checking the regex, e.g. $lValid = ($valuetocheck =~ /$regex/); I want to be able to include perl variables in the config file, e.g. regex = ^\d+$stored_regex$ But I can't work out how to do it. When regular expressions are parsed by Perl they get interpreted twice. First the variables are expanded, and then the the regular expression itself is parsed. What I need is a three stage process: First interpolate $regex, then interpolate the variables it contains and then parse the resulting regular expression. Both the first two interpolations need to be "regular expression aware". e.g. they should know that the string contain $ as an anchor etc... Any ideas?

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  • How to fix network connection dead on startup, but okay after disable/enable?

    - by bill weaver
    on Startup When my system starts up, the internet connection is dead. This causes various problems with startup items such as updates and auto-start programs failing. However, the connection is fine after going into Network and Sharing, Change adapter settings, then disabling and re-enabling the adapter. Any suggestions on why this is happening and how to fix it? System summary: Windows 7, 64 bit, Realtek PCIe GBE Family Controller, Linksys WRT610N router, Sci Atlanta cable modem.

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  • "Object reference not set to an instance of an object": why can't .NET show more details?

    - by Simon Chadwick
    "Object reference not set to an instance of an object" This is probably one of the most common run-time errors in .NET. Although the System.Exception has a stack trace, why does the exception not also show the name of the object reference field, or at least its type? Over the course of a year I spend hours sifting through stack traces (often in code I did not write), hoping there is a line number from a ".pdb" file, then finding the line in the code, and even then it is often not obvious which reference on the line was null. Having the name of the reference field would be very convenient. If System.ArgumentNullException instances can show the name of the method parameter ("Value cannot be null. Parameter name: value"), then surely System.NullReferenceException instances could include the name of the null field (or its containing collection).

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  • jquery boxy plugin: prevent multiple instances of the same dialog when clicking the link multiple ti

    - by Lyon
    Hi, I'm using the Boxy jQuery plugin to open dialog windows and populating it through ajax. http://onehackoranother.com/projects/jquery/boxy/ Here's my code so far: $("a.create").click(function (e) { url = $(e.target).attr('href'); Boxy.load(url, {title:'Test'}); }); This opens up a dialog alright. However, if I click the link again, another dialog will open. How can I make it such that the previously opened Boxy dialog will come into focus? I only want one instance of this dialog. I tried assigning a variable to var ele = Boxy.load(); but the variable ele returns undefined... Alas, I can't make out much from the limited Boxy documentation available. Enabling the option modal: true would prevent the user from clicking on the link multiple times, but I don't want the overlay to show. Thanks for any light you can shed on this. -Lyon

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  • What tool or scripts do you use to audit a Linux box?

    - by Sharjeel Sayed
    I use the following tools for my auditing needs A) System Auditing and Hardening (One time) 1) Linux Security Auditing Tool (Security centric,Text based output ) 2) Dmidecode ( Retrieves info from BIOS ) 3) Systeminfo ( Generates a nice html report) 4) Syssumm (Inactive since Oct 2000) 5) Rootkit Hunter (Does a basic config check in addition to rootkit checks) 6) CIS benchmarks 7) Bastille ( Interactive hardening and a security scoring tool) B) Automatic Auditing (as a cron job or a service) 1) Logwatch 2) Psad C) Remote Auditing 1) Nmap (Port scanning) 2) Nessus ( Remote Vulnerability check) D) Wikipedia 1) System profiler Any other tools/scripts which you can recommend?

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  • Test if a Property is not Null before Returning

    - by DaveDev
    I have the following property public MyType MyProperty {get;set;} I want to change this property so that if the value is null, it'll do populate the value first, and then return it... but without using a private member variable. For instance, if I was doing this: public MyType MyProperty { get { if (_myProperty != null) return _myProperty else _myProperty = XYZ; return _myProperty; } set { _myProperty = value; } } is this possible? Or do I need the member variable to get it done?

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  • Why does limiting my virtual memory to 512MB with ulimit -v crash the JVM?

    - by Narinder Kumar
    I am trying to enforce maximum memory a program can consume on a Unix system. I thought ulimit -v should do the trick. Here is a sample Java program I have written for testing : import java.util.*; import java.io.*; public class EatMem { public static void main(String[] args) throws IOException, InterruptedException { System.out.println("Starting up..."); System.out.println("Allocating 128 MB of Memory"); List<byte[]> list = new LinkedList<byte[]>(); list.add(new byte[134217728]); //128 MB System.out.println("Done...."); } } By default, my ulimit settings are (output of ulimit -a) : core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 31398 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 31398 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited When I execute my java program (java EatMem), it executes without any problems. Now I try to limit max memory available to any program launched in the current shell to 512MB by launching the following command : ulimit -v 524288 ulimit -a output shows the limit to be set correctly (I suppose): core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 31398 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 31398 virtual memory (kbytes, -v) 524288 file locks (-x) unlimited If I now try to execute my java program, it gives me the following error: Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. Ideally it should not happen as my Java program is only taking around 128MB of memory which is well within my specified ulimit parameters. If I change the arguments to my Java program as below: java -Xmx256m EatMem The program again works fine. While trying to give more memory than limited by ulimit like : java -Xmx800m EatMem results in expected error. Why the program fails to execute in the first case after setting ulimit ? I have tried the above test on Ubuntu 11.10 and 12.0.4 with Java 1.6 and Java 7

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  • Having trouble with binding

    - by Tam
    I'm not sure if I'm misunderstanding the binding in Flex. I'm using Cairngorm framework. I have the following component with code like: [Bindable] var _model:LalModelLocator = LalModelLocator.getInstance(); .... <s:DataGroup dataProvider="{_model.friendsSearchResults}" includeIn="find" itemRenderer="com.lal.renderers.SingleFriendDisplayRenderer"> <s:layout> <s:TileLayout orientation="columns" requestedColumnCount="2" /> </s:layout> </s:DataGroup> in the model locator: [Bindable] public var friendsSearchResults:ArrayCollection = new ArrayCollection(); Inside the item renderer there is a button that calls a command and inside the command results there is a line like this: model.friendsSearchResults = friendsSearchResults; Putting break points and stepping through the code I confirmed that this like gets called and the friendsSearchResults gets updated. To my understanding if I update a bindable variable it should automatically re-render the s:DataGroup which has a dataProvider of that variable.

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  • Reverse Engineering Custom Data File

    - by kerchingo
    At my place of work we have a legacy document management system that is now unsupported by the developers due to variours reasons, i have been asked to look into extracting the documents contained in this system to eventually be imported into a new 3rd party system. From various tracing and process monitoring I have determined that the document images (mainly tiff files) are stored in a number of 1.5gb files, these files seem to be read from a speficic offset and then written to a tmp file that is then served via a web app to the client and then deleted. I guess i am looking for suggestions as how I can inspect these large files that containn the tiff images and eventually extract and write them to individual files.

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  • TypeError: can't convert String into Integer

    - by demas
    I have code: class Scene def initialize(number) @number = number end attr_reader :number end scenes = [Scene.new("one"), Scene.new("one"), Scene.new("two"), Scene.new("one")] groups = scenes.inject({}) do |new_hash, scene| new_hash[scene.number] = [] if new_hash[scene.number].nil? new_hash[scene.number] << scene end When I'm lauching it I get error: freq.rb:11:in `[]': can't convert String into Integer (TypeError) from freq.rb:11:in `block in <main>' from freq.rb:10:in `each' from freq.rb:10:in `inject' from freq.rb:10:in `<main>' If I change scenes to: scenes = [Scene.new(1), Scene.new(1), Scene.new(2), Scene.new(1)] the problem dissapear. Why I get error message in the first case? Why Ruby decide to convert scene.number from String to Integer? And one additional question about the 'inject' method. When Ruby initialize the 'new_hash' variable and how can Ruby know the type of this variable?

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  • Programmatically change the default code page in Windows XP? (from Delphi)

    - by Duncan
    Could anyone advise how to programmatically change the default Windows XP code page (I'm doing this from Delphi)? (This would be the equivalent of going into Control Panel - Regional Settings - Language for non-Unicode applications). In this case, I want to switch to Chinese (PRC) and so am writing to the following registry strings: HKLM\SYSTEM\CurrentControlSet\Control\Nls\CodePage\ ACP=936 MACCP=10008 OEMCP=936 (Which is exactly what changing the non-Unicode codepage drop down in Control Panel does). There must be another setting which I need to change - and I'd prefer to use a Win API call (if available) rather than writing to the registry myself. I've also tried setting HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language\ Default=0804 (Chinese PRC) to no avail. I don't want to change the 'locale' per se as this will also change time / date settings, separators, etc. etc. This is because I'm using an ANSI application that needs to render Chinese characters, and I'm writing a tool to automatically switch the system show the characters (while leaving other aspects of the UI intact). Thanks! Duncan

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  • How can I retain the editing in the search result with UISearchDisplayController?

    - by wal
    I want to search a table in editing mode, but when I type a letter the variable tableView.editing is changed to NO. And when I cancel the search, the tableView.editing return to YES. I'd like to retain the editing YES in the result of the search. I put breakpoint in several methods. Until the filterContentForSearchText method, the variable is YES, but in the cellForRowAtIndexPath, it is NO. Image of the table in editing mode just before type a letter in the search bar. Image of the search Image of the table after the searching (editing mode again)

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  • Auditing events 4656 and 4658 on Windows folder on Server 2008

    - by PCurd
    During an overnight system state backup we are seeing thousands of success audit events (4656, 4658) on the folder c:\windows\servicing, system32 and others in the windows folder. We use file success auditing on some files so I can't disable it but this deluge is filling up the logs and making reporting tricky. What is the harm of changing the auditing settings on the windows folder? What are the recommended settings to put on the files for those people doing system state backups? Thanks,

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  • Integrate Cppcheck with Emacs

    - by N.N.
    Is it possible to integrate Cppcheck with Emacs in a more sophisticated way than simply calling the shell command on the current buffer? I would like Emacs to be able to parse Cppcheck's messages and treat them as messages from a compiler (similar to how compile works), such as using C-x ` to visit the targets of Cppcheck's messages. Here is some example output Cppcheck: $ cppcheck --enable=all test.cpp Checking test.cpp... [test.cpp:4]: (error) Possible null pointer dereference: p - otherwise it is redundant to check if p is null at line 5 [test.cpp:38]: (style) The scope of the variable 'i' can be reduced [test.cpp:38]: (style) Variable 'i' is assigned a value that is never used [test.cpp:23]: (error) Possible null pointer dereference: p [test.cpp:33]: (error) Possible null pointer dereference: p Checking usage of global functions.. [test.cpp:36]: (style) The function 'f' is never used [test.cpp:1]: (style) The function 'f1' is never used [test.cpp:9]: (style) The function 'f2' is never used [test.cpp:26]: (style) The function 'f3' is never used

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  • Check if user exists in Active Directory

    - by K.R.
    Hello, I need to check if an user exists in AD and if so, retrieve some user information. I have been able to do this as shown below. But, it is very slow. Is there any way to do this faster? Thanks! using System; using System.DirectoryServices; using System.DirectoryServices.AccountManagement; namespace ConsoleApplication1 { class Program { static void Main() { Console.WriteLine("Enter AD account name..."); string strADLoginName = Console.ReadLine(); using(PrincipalContext context = new PrincipalContext(ContextType.Domain,"DEVMC")) { using (UserPrincipal user = UserPrincipal.FindByIdentity(context, strADLoginName)) { bool userExists = (user != null); if (userExists) { Console.WriteLine("User exists"); Console.WriteLine(user.EmailAddress); } else { Console.WriteLine("User doesn't exist"); } } } Console.ReadKey(); } } }

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  • How to Create Site using Sharepoint web services?

    - by Pari
    Hi All, I am tring to create site on sharepoint programatically using Sharepoint Web Services.(C#). I tried Admin.asmx service (CreateSite method). But it's showing error: "An unhandled exception of type 'System.InvalidOperationException' occurred in System.Web.Services.dll". I tried with all possible parameters. Curremtly referring Below Links: http://www.oliebol.org/blog/Lists/Posts/Post.aspx?ID=6 http://msdn.microsoft.com/en-us/library/administration.admin.createsite.aspx My Code: Admin admService = new Admin(); admService.Credentials = new NetworkCredential(username,password,domain); admService.Url = "http://mychserver/_vti_adm/admin.asmx"; admService.PreAuthenticate = true; try { String SitePath = "http://myserver/SiteDirectory/SharepointSampleSite"; admService.CreateSite(SitePath,"First Site", "Sample Site", 1033, "STS#0", "Domain\\username",username,userid, "", ""); } catch (System.Web.Services.Protocols.SoapException ex) { MessageBox.Show("Message:\n" + ex.Message + "\nDetail:\n" +ex.Detail.InnerText + "\nStackTrace:\n" + ex.StackTrace); } Thanx,

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  • StreamReader.ReadToEnd() returning an empty string

    - by axk
    I have a method private static String DecompressAndDecode(byte[] data) { GZipStream decompressor = new GZipStream(new MemoryStream(data), CompressionMode.Decompress); StreamReader decompressed = new StreamReader(decompressor, Encoding.UTF8); String result = decompressed.ReadToEnd(); return result; } I have some GZipped text as input and the result is supposed to be a String representation of this text. The problem is that the method returns an empty string. What is puzzling me is that when I step trough the method in debug mode and reach the return statement the result variable is an empty string but if I create a watch for the decompressed.ReadToEnd() expression it returns me the text. What I would expect at this point is the result variable to contain the text and the decompressed.ReadToEnd() expression evaluating to an empty string. (Reevaluating the decompressed.ReadToEnd() expression returns an empty string as expected). There must be something obvious I'm missing here.

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  • Could not load file or assembly

    - by sldevelop
    Hi guys, I'm tring to create a generic collection of dynamic type at runtime of Silverlight application. My code: Type listType = Type.GetType("System.Collections.ObjectModel.ObservableCollection`1[[" + type.AssemblyQualifiedName + "]], System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e", true); type - is variable of Type type. That Type is creating at runtime. At that code line I've got error: Could not load file or assembly ', Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. How can I resolve that error?

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  • ASP.Net MVC view unable to see HtmlHelper extension method

    - by larryq
    Hi everyone, We're going through an ASP.Net MVC book and are having trouble with using an extenstion method within our view. The Extension method looks like this: using System; using System.Runtime.CompilerServices; using System.Web.Mvc; namespace MvcBookApplication { public static class HtmlHelperExtensions { public static string JQueryGenerator(this HtmlHelper htmlHelper, string formName, object model); } } We use the extension method in our view like this: <%=Html.JQueryGenerator("createmessage", ViewData.Model)%> The problem is, that line of code says JQueryGenerator isn't a recognized method of HtmlHelper. I believe we've got the correct references set in the web project, but are there other things we can check? There's no using statement for views, is there?

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