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• Can't get PXE boot working on WDS + Linux DHCP server

  - by askvictor

  Hi I'm trying to get WDS to PXE boot some laptops. The university is running a (linux) DHCP server for the entire network; we can't run our own. We can (and have) set options in that DHCP server to point to a tftp server and file (pxeboot.n12 on the WDS server we run). The client seems to get the pxeboot.n12 file (judging by the server logs), but then comes back with 'TFTP download failed Pres any key to reboot'. I've tried running a third-party tftp service on the WDS server, and found that the client pulls the first stage (pxeboot.n12) correctly, but then looks for the second stage (bootmgr.exe) in the root of the tftp folder - whereas WDS places it in \boot\x86\ (or \boot\x64). Similarly, it looks for a file called BCD, which doesn't exist (rather there are a few files scattered around with the extension .bcd). I'm confused if the WDS tftp server does some magic returning certain files, or if I haven't configured it correctly. The server is 2008 R2. Cheers, Victor

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• Office365 DirSync Active Directory Integration

  - by dean

  I am preparing to deploy Office365 for my organization. We have an on premise Active Directory Domain Controller (Windows Server 2012 R2). We would like to leverage our Active Directory for: automatic user provisioning in Office365, and password synchronization, using the DirSync tool. Our Active Directory Domain is example.pvt. Email is currently Rackspace Exchange and email addresses follow the form [email protected]. Active Directory User Logon Name follows the form firstinitiallastname. My Questions are: What Active Directory Attribute(s) can be use in provisioning the email address in Office365? Is it possible to use the E-mail field in Active Directory to provision the email address in Office365? Will the fact that our Active Directory Domain has a different extension (.pvt vs. .com) cause a problem with our planned provisioning method?

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• How can I open urls on my host machine with VMWARE?

  - by Yanamon

  I am running a Windows 7 vm with WMware player from Fedora. I have VMWare tools installed successfully and I have successfully some of it's features like Unity mode so it seems to be installed correctly. That being said I still cannot get urls to open up in my host machine's browsers, these are the steps I have taken: Within the vm I set "Default Host Application" to be the application to open urls. Within my host machine I have set Chrome to be my preferred application for opening urls. Enabled Shared Folders in the vm (Not sure if that really helped anything but I saw it suggested on a forum post) After doing that when I click on a link I get the following error message: Default host Application: Make sure the virtual machine's configuration allows the guest to open host applications. I cannot find any option like that in my vm's configuration so I am not sure what the error message is referring to.

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• How best to troubleshoot a WIA issue through an IIS7 reverse proxy.

  - by CptSkippy

  I've got an Intranet site that uses Windows Authentication and is accessed through an IIS 7 Reverse Proxy. Using FireFox, Safari or Chrome it works fine. I'm prompted for credentials, I supply them and away I go. In IE 7/8 I get prompted for credentials but they're rejected and I eventually get a 401 not authorized error. The application server is configured for Windows Auth only and rejects basic authentication. I would be surprised if the front end proxy would accept Basic Auth so my suspicion is that it's a trust issue with my browser and IE isn't relaying the credentials however our IS Team has IE so locked down I'm unable to alter trust levels or even view the settings. How should I go about troubleshooting this problem? I'm at a loss and they've yet to respond to my support ticket.

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• GnuPG PHP gnupg Folder & Files Permission

  - by Michael Robinson

  Situation: we plan on using PHP's GnuPG extension to encrypt/decrypt files. Currently we've setup some test cases, using keys generated with GPG. The generated files reside in: /Users/username/.gnupg/ I am able to get keyinfo for the key I want to use to encrypt/decrypt, but when I attempt to use addencryptkey, I get: (E_WARNING: 2): gnupg::addencryptkey() [gnupg.addencryptkey]: get_key failed I think this is due to the permissions on the ~/.gnupg folder & enclosed files. The files are owned by me - username, but apache runs as www. A few days ago I did have this working, but it seems each time I use GPG Keychain Access to import / export a key, the folder's permissions are changed. Question: What are the exact permissions required to allow PHP's GnuPG to add encrypt & decrypt keys?

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• Relation between .p7b and .spc digital certificate files

  - by Frederick

  My company have just renewed their digital certificate from Thawte. The previous certificate I was using had an 'spc' extension. The new certificate I've been handed ends in a 'p7b'. Although I can use this p7b file directly for signing, I was just wondering whether there's some way to convert this to an spc file which I can then sign with as I was doing previously. Is it a recommended practice to use p7b directly for signing? Secondly, what exactly is the relation, if any, between the two types of files?

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• If record exists in database, UPDATE a single column

  - by Doug

  I have a bulk uploading object in place that is being used to bulk upload roughly 25-40 image files at a time. Each image is about 100-150 kb in size. During the upload, I've created a for each loop that takes the file name of the image (minus the file extension) to write it into a column named "sku". Also, for each file being uploaded, the date is recorded to a column named DateUpdated, as well as some image path data. Here is my c# code: protected void graphicMultiFileButton_Click(object sender, EventArgs e) { //graphicMultiFile is the ID of the bulk uploading object ( provided by Dean Brettle: http://www.brettle.com/neatupload ) if (graphicMultiFile.Files.Length > 0) { foreach (UploadedFile file in graphicMultiFile.Files) { //strip ".jpg" from file name (will be assigned as SKU) string sku = file.FileName.Substring(0, file.FileName.Length - 4); //assign the directory where the images will be stored on the server string directoryPath = Server.MapPath("~/images/graphicsLib/" + file.FileName); //ensure that if image existes on server that it will get overwritten next time it's uploaded: file.MoveTo(directoryPath, MoveToOptions.Overwrite); //current sql that inserts a record to the db SqlCommand comm; SqlConnection conn; string connectionString = ConfigurationManager.ConnectionStrings["DataConnect"].ConnectionString; conn = new SqlConnection(connectionString); comm = new SqlCommand("INSERT INTO GraphicsLibrary (sku, imagePath, DateUpdated) VALUES (@sku, @imagePath, @DateUpdated)", conn); comm.Parameters.Add("@sku", System.Data.SqlDbType.VarChar, 50); comm.Parameters["@sku"].Value = sku; comm.Parameters.Add("@imagePath", System.Data.SqlDbType.VarChar, 300); comm.Parameters["@imagePath"].Value = "images/graphicsLib/" + file.FileName; comm.Parameters.Add("@DateUpdated", System.Data.SqlDbType.DateTime); comm.Parameters["@DateUpdated"].Value = DateTime.Now; conn.Open(); comm.ExecuteNonQuery(); conn.Close(); } } } After images are uploaded, managers will go back and re-upload images that have previously been uploaded. This is because these product images are always being revised and improved. For each new/improved image, the file name and extension will remain the same - so that when image 321-54321.jpg was first uploaded to the server, the new/improved version of that image will still have the image file name as 321-54321.jpg. I can't say for sure if the file sizes will remain in the 100-150KB range. I'll assume that the image file size will grow eventually. When images get uploaded (again), there of course will be an existing record in the database for that image. What is the best way to: Check the database for the existing record (stored procedure or SqlDataReader or create a DataSet ...?) Then if record exists, simply UPDATE that record so that the DateUpdated column gets today's date. If no record exists, do the INSERT of the record as normal. Things to consider: If the record exists, we'll let the actual image be uploaded. It will simply overwrite the existing image so that the new version gets displayed on the web. We're using SQL Server 2000 on hosted environment (DiscountAsp). I'm programming in C#. The uploading process will be used by about 2 managers a few times a month (each) - which to me is not a allot of usage. Although I'm a jr. developer, I'm guessing that a stored procedure would be the way to go. Just seems more efficient - to do this record check away from the for each loop... but not sure. I'd need extra help writing a sproc, since I don't have too much experience with them. Thank everyone...

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• How do I generate a core dump from apache

  - by blockhead

  I have a script which intermittently returns a white screen of death in firefox and Error 324 (net::ERR_EMPTY_RESPONSE): Unknown error. chrome. When I try to access the script using a PHP HTTP client (like Zend_Http_Client), intermittently I get an exception (sorry I don't have the exact message on me at the moment). I suspect a segfault. This is further buttressed by the lines in my error log that look like this: [Thu Mar 18 16:03:02 2010] [notice] child pid 845 exit signal Segmentation fault (11) Now, I'm running RedHat, and I know that RedHat doesn't generate core dumps out-of-the-box. I followed the instructions here http://kbase.redhat.com/faq/docs/DOC-5353, but I'm not seeing any core dumps. How do I generate a core dump?

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• Using .htaccess to server files from Amazon S3 CloudFront

  - by Adrian A.

  My ideal setup would be to take a current clients site, upload a .htaccess with a regex inside, that would match the URI, and if it finds a certain file extension, it would use the same path, but with an altered domain. ie. Normal path: http://www.domain.com/something/images/someimage.jpeg http://www.domain.com/assets/js/jquery.js .htaccess translated would turn the above into: http://mycdn.other.com/something/images/someimage.jpeg http://mycdn.other.com/assets/js/jquery.js I googled this for hours in a row, no luck. Again, this is for actually making use of Amazon's CloudFront. S3 is already mounted to the website for backups and storing files using s3fs, but this doesn't solve the issue since it's using S3 directly, not using the CloudFront.

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• php-fpm start error

  - by Sujay

  I am using php-fpm. I recently recompiled php for including imap functions. But on php-fpm start it gives the following error: Starting php_fpm Error in argument 1, char 1: no argument for option - Usage: php-cgi [-q] [-h] [-s] [-v] [-i] [-f ] php-cgi [args...] -a Run interactively -C Do not chdir to the script's directory -c | Look for php.ini file in this directory -n No php.ini file will be used -d foo[=bar] Define INI entry foo with value 'bar' -e Generate extended information for debugger/profiler -f Parse . Implies `-q' -h This help -i PHP information -l Syntax check only (lint) -m Show compiled in modules -q Quiet-mode. Suppress HTTP Header output. -s Display colour syntax highlighted source. -v Version number -w Display source with stripped comments and whitespace. -z Load Zend extension ................................... failed What could be the problem? Is it in php-fpm.conf or php.ini.

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• SBS2003 OWA not displaying images on external side

  - by JasonC

  I've got an SBS 2003 server with companyweb/remote owa site. After authenticating remotely to the https:/servername/remote site, and then clicking on Use Outlook Web Access, the mail/owa site displays only limited amounts of data with Loading... displayed (see first image). This is different when viewing the site on the server itself (see second image). Different browsers will display different types of data (last screenshot is Chrome - first two are IE). I feel IIS permissions on the virtual directories is the cause, but not certain. Forms-based authentication etc is working ok etc. Any suggestions? Authentication and getting email via ActiveSync is not a problem. I don't want to break anything, and it's not a major problem because the users only get their email via outlook and iphones anyway without problems. I'm more interested in finding out for my own info so please give me some suggestions to try. Thanks for looking!

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• rename file names from lower case to upper case

  - by Adnan

  Hello, I have about 2k of file that are currently in lower case like: file_one.cfr file_two.cfr .... I am searching for a fast way to rename them to upper case so they would be like; FILE_ONE.cfr FILE_TWO.cfr .... If I use from my shell; for i in *; do mv $i `echo $i | tr [:lower:] [:upper:]`; done I can get all file and the file extensions to upper case. But the extension should remain in lowercase, so my approach does not work. Any programming language is welcome.

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• Getting ERR_DNS_FAIL when loading a local webserver page?

  - by NickA

  When I go to a page hosted on a machine on a local network, I get a "The page cannot be found" error with "ERR_DNS_FAIL" in the title. Any ideas what this is or why I am getting it on my computer? I've tried in Firefox, IE and Chrome. Other computers on the network load the page just fine. I'm pretty sure it is from the hostname. I am able to access the page if I browse to it using the IP of the machine. However, it has two hostnames and both are giving the ERR_DNS_FAIL error. I tried restarting the browsers or rebooting the machine, but neither helped. EDIT: ISSUE RESOLVED ON ITS OWN!

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• Windows Explorer keeps crashing in Windows 8.1

  - by Jonathan Allen

  This started a few days ago on a machine that has been running WIn 8.1 for over a month. I just finished a clean install of Windows 8.1 with a handful of apps like Dropbox and Office. Yet I'm still getting Windows Explorer crashes such as this: Faulting application name: Explorer.EXE, version: 6.3.9600.16408, time stamp: 0x523d251b Faulting module name: SHELL32.dll, version: 6.3.9600.16409, time stamp: 0x523fac81 Exception code: 0xc00000fd Fault offset: 0x0000000000189247 Faulting process id: 0xee8 Faulting application start time: 0x01ced2a62f6e5b2e Faulting application path: C:\WINDOWS\Explorer.EXE Faulting module path: C:\WINDOWS\system32\SHELL32.dll Report Id: e25c6b13-3eb4-11e3-be7a-2cd05a597b87 Faulting package full name: Faulting package-relative application ID: I assume that it is some sort of shell extension, but I don't know how to figure out which one.

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• Why would Firefox not be able to visit Google anymore?

  - by Edward Tanguay

  Lately I've noticed that my Firefox Browser was taking a long time when I would search Google, e.g. 3 seconds before I would see any results. If I search for a three-word phrase, it just hangs trying to connect: I removed all add-ons but it still does this. I thought it might be something with my router, but Chrome, Safari, Opera and Internet Explorer all work fine. Bing works fine in Firefox. Here's my Firefox version information: Otherwise I can still use Firefox, e.g. I'm using it to post this question, but I do notice that when I browse with it, images are often "broken" for a split second before they appear, as if it is having a hard time pulling them from a remote server. Other browsers don't do this. What could be causing Firefox to hang when searching Google?

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• CakePHP: trouble configuring .htaccess for user directories enabled server

  - by bullettime

  I've placed the CakePHP files in a directory in /home/user/public_html/cakephp. When I try to reach localhost/~user/cakephp with my browser, there's an error message. In my case, since I'm using Chrome, it is 'Oops! This link appears to be broken.". Looking for a solution on Google, I found a few articles saying that I have to edit the .htaccess files that came with CakePHP, since it was made to work out of the box in /var/www/htdocs. Apparently I have to add a 'RewriteBase' statement to the .htaccess files. I added 'RewriteBase /' to it but it didn't work. If I change the RewriteBase statement in my user web directory to 'RewriteBase /cakephp' and then try to access localhost/~user/cakephp, the browser then shows not the copy in /home/user/public_html/cakephp but the copy in /var/www/htdocs/cakephp. What can I do to fix this?

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• SSL for PHP on Windows Server 2003

  - by otobrglez

  Hi All! I have Windows Server 2003 R2 with Apache 2.2.4 and PHP 5.2.6. I want to access pages over https (SSL). And i get this error (Zend Framework GData): Unable to find the socket transport "ssl" - enter code here did you forget to enable it when you configured PHP? So what i did. I went to php.ini and i uncomented the line extension=php_openssl.dll I also installed Win32 OpenSSL. But nothing works. What sould i do?

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• The procedure entry php_mb_check_encoding_list could not be located

  - by BlackFire27

  I get this error. The procedure entry php_mb_check_encoding_list could not be located in the dynamic link library php_mbstring.dll The error is related to the php.ini settings, I think.. It finds it difficult to locate the extension I suspect, I put an environment path to the php.exe and its extensions folder, but when I run the command line and call php.exe, that error is being thrown. I use windows. I have got this set in my php.ini. ; On windows: extension_dir = "C:\xampp\php\ext" I installed xampp.. the php version is the latest.. Another thing which is weird is when I try to print out: phpinfo..nothing is being printed out <?php echo phpinfo(); ?> nothing comes out?!?! The question is why and how can I prevent it from being thrown..

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• Strange. Asterisk key plays random Windows sound when pressed

  - by Charles

  This is a new one on me. When I press the "asterisk", or * button on my number pad (but not SHIFT+8), Windows makes either a "Exclamation" or "Windows ding" sound. I haven't noticed a pattern to which sound is made. Logitech K200 keyboard No special key mapping software or Logitech software running Realtek sound to stereo through optical cable. Visual Studio 2010, Chrome, Fiddler, WinRAR, Notepad++, and Dropbox running. No unusual behavior otherwise. A solution isn't terribly important but my curiosity is both piqued and stumped. This doesn't normally happen and nothing odd has taken place otherwise. Ideas?

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• Unable to connect to Adobe Connect

  - by ub3rst4r

  I am having troubles trying to connect my colleges Adobe Connect. I have done the test meeting connection and it will say "Unable to connect". I have tried connecting on 3 other computers and it works with flying colors. I am running Norton 360 on my computer and I also tried it on my other laptop thats also running Norton 360 and it works on that laptop. I also checked my hosts file and that is not the problem because I am able to connect to the server (on port 80) but not the Adobe Connect port (port 1935). The only thing in it is "127.0.0.1 localhost" Here are the details from the log that the test created: Player Version: WIN 11,3,300,271 App-Server returned: code:ok, servers=rtmp://connect.bowvalleycollege.ca:1935/_rtmp://localhost:8506/,rtmpt://connect.bowvalleycollege.ca:443/_rtmp://localhost:8506/ ERROR: FMS Server did not return correctly! Here is my specifications: Windows 7 SP1 x64 Norton 360 v6.3 (latest) It won't connect in Firefox v15, Chrome v19, or IE9 All of my computers are connected through the same router (D-Link DIR-625) Any ideas?

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• Virus that duplicates word documents as exe

  - by Bob Rivers

  Hi, We are facing a virus problem on our network, but I'm unable to identify it, so we can't properly deal with it. The symptoms are that the virus duplicates a word document (.doc) generating a new archive with the same name, but with an exe extension, and, after that, the virus hides the original file. So, when the user clicks over the file, it propagates itself. Symantec AV seems to be able to block it: every time that the virus tries to generate the exe, symantec blocks it, but at this point, the original file was already converted to hidden, so the user thinks that the file has been deleted. Symantec identifies it as a simple trojan horse. I already started a full scan, but it didn't found nothing. I'm trying to know the virus name in order to fight it. Does anyone has any kind of information? TIA, Bob

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• Error after installing mysqlnd_ms

  - by user997226

  I am working on Amazon EC2 using the Amazon Linux AMI which is based on CentOS. I have installed php54 and php54-mysqlnd. I then do a "sudo pecl install myslqnd_ms" This installs fine. I add the extension into the php.ini file. Then I start httpd, and when I do in the error log I see: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/mysqlnd_ms.so' - /usr/lib64/php/modules/mysqlnd_ms.so: undefined symbol: mysqlnd_globals in Unknown on line 0 Googling this lead me to: https://bugs.php.net/bug.php?id=62276&edit=1 and http://forums.famillecollet.com/viewtopic.php?id=242 neither of which helped me much. I am trying to stick to stock pre built binaries from the main YUM repo if possible. What would be the best solution here? Thanks in advance

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• Ubuntu 10.04 with HD flash

  - by Brad Robertson

  Just noticed that 10.04 is out. My media server has been packed away for a few months but I might dust if off and give 10.04 a shot but I thought I'd see if anyone has any success stories with HD flash in either Chrome or Firefox. I'm currently running Ubuntu 9.10 and it was a large enough pain to get VDPAU working with my Zotac Ion-ITX-C board (eventually found an mplayer PPA that had it compiled in) From reading the 10.04 docs it looks like this is standard now, but I'm wondering about streaming HD, from, say flash or Divx. I've never been able to get HD flash to play without it being extremely choppy, and I chalk this up to the lack of hardware assisted decoding like VDPAU (a guess). My board certainly isn't a competitor in CPU power or memory, which is why i've needed the HW accelerated decoding for HD vids in the past. Just wondering if anyone has had any success stories playing HD vid online (flash, divx or what have you)

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• Passing integer lists in a sql query, best practices

  - by Artiom Chilaru

  I'm currently looking at ways to pass lists of integers in a SQL query, and try to decide which of them is best in which situation, what are the benefots of each, and what are the pitfalls, what should be avoided :) Right now I know of 3 ways that we currently use in our application. 1) Table valued parameter: Create a new Table Valued Parameter in sql server: CREATE TYPE [dbo].[TVP_INT] AS TABLE( [ID] [int] NOT NULL ) Then run the query against it: using (var conn = new SqlConnection(DataContext.GetDefaultConnectionString)) { var comm = conn.CreateCommand(); comm.CommandType = CommandType.Text; comm.CommandText = @" UPDATE DA SET [tsLastImportAttempt] = CURRENT_TIMESTAMP FROM [Account] DA JOIN @values IDs ON DA.ID = IDs.ID"; comm.Parameters.Add(new SqlParameter("values", downloadResults.Select(d => d.ID).ToDataTable()) { TypeName = "TVP_INT" }); conn.Open(); comm.ExecuteScalar(); } The major disadvantages of this method is the fact that Linq doesn't support table valued params (if you create an SP with a TVP param, linq won't be able to run it) :( 2) Convert the list to Binary and use it in Linq! This is a bit better.. Create an SP, and you can run it within linq :) To do this, the SP will have an IMAGE parameter, and we'll be using a user defined function (udf) to convert this to a table.. We currently have implementations of this function written in C++ and in assembly, both have pretty much the same performance :) Basically, each integer is represented by 4 bytes, and passed to the SP. In .NET we have an extension method that convers an IEnumerable to a byte array The extension method: public static Byte[] ToBinary(this IEnumerable intList) { return ToBinaryEnum(intList).ToArray(); } private static IEnumerable<Byte> ToBinaryEnum(IEnumerable<Int32> intList) { IEnumerator<Int32> marker = intList.GetEnumerator(); while (marker.MoveNext()) { Byte[] result = BitConverter.GetBytes(marker.Current); Array.Reverse(result); foreach (byte b in result) yield return b; } } The SP: CREATE PROCEDURE [Accounts-UpdateImportAttempts] @values IMAGE AS BEGIN UPDATE DA SET [tsLastImportAttempt] = CURRENT_TIMESTAMP FROM [Account] DA JOIN dbo.udfIntegerArray(@values, 4) IDs ON DA.ID = IDs.Value4 END And we can use it by running the SP directly, or in any linq query we need using (var db = new DataContext()) { db.Accounts_UpdateImportAttempts(downloadResults.Select(d => d.ID).ToBinary()); // or var accounts = db.Accounts .Where(a => db.udfIntegerArray(downloadResults.Select(d => d.ID).ToBinary(), 4) .Select(i => i.Value4) .Contains(a.ID)); } This method has the benefit of using compiled queries in linq (which will have the same sql definition, and query plan, so will also be cached), and can be used in SPs as well. Both these methods are theoretically unlimited, so you can pass millions of ints at a time :) 3) The simple linq .Contains() It's a more simple approach, and is perfect in simple scenarios. But is of course limited by this. using (var db = new DataContext()) { var accounts = db.Accounts .Where(a => downloadResults.Select(d => d.ID).Contains(a.ID)); } The biggest drawback of this method is that each integer in the downloadResults variable will be passed as a separate int.. In this case, the query is limited by sql (max allowed parameters in a sql query, which is a couple of thousand, if I remember right). So I'd like to ask.. What do you think is the best of these, and what other methods and approaches have I missed?

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• PHP throwing XDebug errors ONLY in command line mode...

  - by Wilhelm Murdoch

  Hey, all! I've been having a few problems running PHP-based utilities within the command line ever since I enabled the XDebug. It runs just fine when executing script through a browser, but once I try an execute a script on the command line, it throws the following errors: h:\www\test>@php test.php PHP Warning: PHP Startup: Unable to load dynamic library 'E:\development\xampplite\php\ext\php_curl.dll' - The specified module could not be found in Unknown on line 0 PHP Warning: Xdebug MUST be loaded as a Zend extension in Unknown on line 0 h:\www\test> The script runs just fine after this, but it's something I can't seem to wrap my head around. Could it be a path issue within my php.ini config? I'm not sure if that's the case considering it throws the same error no matter where I access the @php environmental variable. Also, all paths within my php.ini are absolute. Not really sure what's going on here. Any ideas? Thanks!

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