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• GroupWise 6.5 IMAP Service Shuts Down-Needs Constant Restarting

  - by Jeffrey Majette

  I have an issue with my aging (and soon to be replaced) GroupWise 6.5 system. The IMAP service in the GWIA tends to periodically shut down, requiring that I restart the service. When IMAP is down, my end users who use Blackberry BIS cannot send or receive email on their devices. It's a royal pain to have to restart the IMAP service several times a day. The GWIA logs do not seem to indicate a problem. I thought I was on to something yesterday. I discovered that the gwia.cfg file located in SYS:SYSTEM was actually from GW 6.0. The gwia.cfg in DOMAIN\WPGATE\GWIA was titled for GW 6.5 when opening the file for editing. I changed the generic placeholder info in the file to match my environment and restarted the gwia. However, it made no difference in performance. The IMAP service shuts down about 30 minutes after the last restart. I know this version of GW is antiquated. We are in the process of migrating to Google Apps. But, if anyone has an idea that could fix this issue, I and my end user community would be forever grateful!

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• Windows 7 boot animation slows down startup by default?

  - by kngofwrld

  I just upgraded my HDD to an SSD drive. I am running a completely fresh install and enjoy the short boot time. I tweaked the startup to be as fast as I could by removing unneeded apps and such. Nor am I running a solid desktop background (which causes a 30-sec startup delay). I have a 2.1ghz 64 bit laptop with 4 gigs of ram, so it's not a liquid-cooled speed monster, but I checked some super high end PC boot vids on YouTube and noticed that they startup in almost the same time as my machine. I also noticed that the glowing Windows 7 animation plays all the way no matter how fast the PC is. I turned off the animation, and the startup time is unchanged. I turned on verbose startup info and noticed that it runs until the very end, where it looks like it just sits there for no reason waiting for something to happen for a few seconds. So now I think that the Windows 7 startup animation has a timer built into it that forces the computer to wait for no other reason than to play the full animation. Super-fast XP boot vids on YouTube seem to start much faster (and not just because they "have less to load"). Am I imagining things? My question is: How can I turn off not just the animation, but the timer for the animation. Here is a vid that tipped me off, I have no relation to the poster. (warning: soundtrack might be loud) http://www.youtube.com/watch?v=T5LkX3xejJ4

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• Can you see something wrong in my .htaccess?

  - by AlexV

  OK, after many search, trial and errors I've managed to create an .htaccess that do what I wanted (see explanations and questions after the code block): <IfModule mod_rewrite.c> RewriteEngine On #1 If the requested file is not url-mapper.php (to avoid .htaccess loop) RewriteCond %{REQUEST_FILENAME} (?<!url-mapper\.php)$ #2 If the requested URI does not end with an extension OR if the URI ends with .php* RewriteCond %{REQUEST_URI} !\.(.*) [OR] RewriteCond %{REQUEST_URI} \.php.*$ [NC] #3 If the requested URI is not in an excluded location RewriteCond %{REQUEST_URI} !^/seo-urls\/(excluded1|excluded2)(/.*)?$ #Then serve the URI via the mapper RewriteRule .* /seo-urls/url-mapper.php?uri=%{REQUEST_URI} [L,QSA] </IfModule> This is what the .htaccess should do: #1 is checking that the file requested is not url-mapper.php (to avoid infinite redirect loops). This file will always be at the root of the domain. #2 the .htaccess must only catch URLs that don't end with an extension (www.foo.com -- catch | www.foo.com/catch-me -- catch | www.foo.com/dont-catch.me -- don't catch) and URLs ending with .php* files (.php, .php4, .php5, .php123...). #3 some directories (and childs) can be excluded from the .htaccess (in this case /seo-urls/excluded1 and /seo-urls/excluded2). Finally the .htaccess feed the mapper with an hidden GET parameter named uri containing the requested uri. Even if I tested and everything works, I want to know if what I do is correct (and if it's the "best" way to do it). I've learned a lot with this "project" but I still consider myself a beginner at .htaccess and regular expressions so I want to triple check it there before putting it in production...

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• Client cannot access my IIS7 web server

  - by Soccerwiz

  I have a Windows 2008 web server on running IIS 7 with about 25 websites. One of those sites is an SaaS application that is accessed constantly throughout the day. However, one particular client keeps getting blocked from my server. They will be using the service, and then all of a sudden they cannot access the program, or any other site on the server. The entire office of 4 users is blocked from accessing anything on the web server. A trace route reveals they get all the way to the server before they are blocked. However, they can access a linux server that is a different VM with a different IP on the same physical server. Also, when they are blocked from their office, they can still access the site from their mobile phone or local Starbucks. They can also occasionally reset the router and gain access to the web server again as they are on a dynamic IP address. I checked IIS and allow all IPs to access the server. There is nothing in the logs the says anything about a user being banned. I really have no idea what is causing this? Could it be a virus on their end? I have even moved the SaaS to a completely new server in a different location, and they were working fine for about a month, and then the problem started occurring again. Are there any hidden blacklists in IIS? Or is it a routing issue on their end?

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• Fixing damaged partition table

  - by dr4cul4

  This is continuation of Recover Extended Partition , but this time I have different problem related partition table it self. I managed to restore partition that I needed and backed up files that were crucial to me (at least those that I had space to store somewhere) OK now get to the problem. My partition table is corrupted, booting RIP Linux I can mount it in truecrypt (and other ones that recovered), but that's basically it. When I launch GParted I have unallocated drive. GParted Dev info: Device Information Model: ATA ST2000DL003-9VT1 Size: 1.82TiB Path: /dev/sda Partition table: unrecognized Heads: 255 Sectors/track: 63 Cylinders: 243201 Total Sectors: 3907029168 Sector size: 512 When I check information on unallocated space I get: File system: unallocated Size: 1.82TiB First sector: 0 Last sector: 3907029167 Total sectors: 3907029168 Warning: Can't have a partition outside the disk! Now the output of testdisc (Analyze): TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIER <[email protected]> http://www.cgsecurity.org Disk /dev/sda - 2000 GB / 1863 GiB - CHS 243201 255 63 Current partition structure: Partition Start End Size in sectors > 1 P Linux 13132 242 39 16353 233 8 51744768 2 E extended LBA 16807 223 1 243201 254 63 3637021626 No partition is bootable 5 L Linux 16807 223 57 20430 39 25 58191872 X extended 20430 70 1 243201 78 13 3578816632 Invalid NTFS or EXFAT boot 6 L HPFS - NTFS 20430 71 58 243201 78 13 3578816512 6 LNext Now fdisk: # fdisk -l /dev/sda Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00039cd0 Device Boot Start End Blocks Id System /dev/sda1 210980864 262725631 25872384 83 Linux /dev/sda2 270018504 3907040129 1818510813 f W95 Ext'd (LBA) /dev/sda5 270018560 328210431 29095936 83 Linux /dev/sda6 328212480 3907028991 1789408256 7 HPFS/NTFS/exFAT Now I would like to fix that to arrange partitions correctly, but I have no idea which tool is capable of fixing that (tried, a few, some of them offered fixing, but it was to risky at the moment - still backing up data).

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• Loadbalancing with nginx and tomcat

  - by London

  Hello this should be fairly easy to answer for any system admin, the problem is that I'm not server admin but I have to complete this task, I'm very close but still not managing to do it. Here is what I mean, I have two tomcat instance running on machine1 and machine2. People usually access those by visiting urls : http://machine1:8080/appName http://machine2:9090/appName The problem is when I setup nginx with domain name i.e domain.com, nginx sends requests to http://machine1:8080/ and http://machine2:9090/ instead of http://machine1:8080/ and http://machine2:9090/appName Here is my configuration (very basic as it can be noted) : upstream backend { server machine1:8080; server machine2:9090; } server { listen 80; server_name www.mydomain.com mydomain.com; location / { # needed to forward user's IP address to rails proxy_set_header X-Real-IP $remote_addr; # needed for HTTPS proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; proxy_max_temp_file_size 0; proxy_pass http://backend; } #end location } #end server What changes must I do to do the following : - when user visits mydomain.com - transfer him to either machine1:8080/appName or machine2:9090 Thank you

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• Configuring two nearby WLANs: should I use the same ssid?

  - by Rory

  I'm configuring a home network for basic internet use (ie don't really need connectivity between workstations on the network). My brick walls mean a single wireless router doesn't provide good coverage throughout the house, so I have purchased two powerline adapters and now have the incoming modem/wireless router at one end of the house plugged into a powerline adapter, and at the other end of the house the other powerline adapter plugged into another wireless router. Currently the two wireless networks have different ssids. (The powerline adapters only do power-Ethernet; they're not wireless access points themselves.) This works well, except when I move between rooms and would ideally like my devices (iPad, phones, laptops) to switch from the weak to the strong signal. Sometimes there's enough signal that they hold on to the weak connects instead of switching to the strong one. Should I name the two networks the same ssid, and if so what is the actual effect? Do the signals get confused, is the bandwidth affected, will this help my devices seamlessly move from one to the other, or is the ssid just a cosmetic thing that actually doesn't have any impact on this situation? Are there any other settings that I should configure to make my setup optimal?

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• Scripted redirection for Outlook 2003

  - by John Gardeniers

  We have a staff member in sales who has gone onto a 4 day week (getting ready for retirement), so each Thursday afternoon her email needs to be forwarded to another user and each Friday afternoon it needs to be set back. I'm using the VBS script below to do this, run via the Task Scheduler. Although the script appears to do it's job, based on what I see when I view the user's Exchange settings, Exchange doesn't always recognise that the setting has changed. e.g. Last Thursday the forwarding was a enabled and worked correctly. On Friday the script did it's thing to clear the forwarding but Exchange continued to forward messages all weekend. I found that I can force Exchange to honour the changed setting be merely opening and closing the user's properties in ADUC. Of course I don't want to have to do that. Is there a non-manual way I can have Exchange read and honour the setting? The script (VBS): ' Call this script with the following parameters: ' ' SrcUser - The logon ID of the suer who's account is to be modified ' DstUser - The logon account of the person to who mail is to be forwarded ' Use "reset" to clear the email forwarding SrcUser = WScript.Arguments.Item(0) DstUser = WScript.Arguments.Item(1) SourceUser = SearchDistinguishedName(SrcUser) 'The user login name Set objUser = GetObject("LDAP://" & SourceUser) If DstUser = "reset" then objUser.PutEx 1, "altRecipient", "" Else ForwardTo = SearchDistinguishedName(DstUser)' The contact common name objUser.Put "AltRecipient", ForwardTo End If objUser.SetInfo Public Function SearchDistinguishedName(ByVal vSAN) Dim oRootDSE, oConnection, oCommand, oRecordSet Set oRootDSE = GetObject("LDAP://rootDSE") Set oConnection = CreateObject("ADODB.Connection") oConnection.Open "Provider=ADsDSOObject;" Set oCommand = CreateObject("ADODB.Command") oCommand.ActiveConnection = oConnection oCommand.CommandText = "<LDAP://" & oRootDSE.get("defaultNamingContext") & ">;(&(objectCategory=User)(samAccountName=" & vSAN & "));distinguishedName;subtree" Set oRecordSet = oCommand.Execute On Error Resume Next SearchDistinguishedName = oRecordSet.Fields("DistinguishedName") On Error GoTo 0 oConnection.Close Set oRecordSet = Nothing Set oCommand = Nothing Set oConnection = Nothing Set oRootDSE = Nothing End Function

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• Howto align partitions in Linux + NetApp

  - by santisaez

  NetApp support has suggested us aligning partitions to improve performance, in short: starting sector must be divisible by 8. How can I move the start point in a misaligned partition -in production, with ext3- under Linux? A screenshot with a misaligned (start=63s) and aligned (start=64s) partition is available at: http://filesocial.com/lkwvvn2 (If anyone is interested in this topic, NetApp has a good document explaining performance issues in misaligned partitions, search for "tr-3747": Best Practices for File System Alignment in Virtual Environments.) I have tried using parted "resize + move" commands, but when moving start point a get this error: (parted) resize Partition number? 1 Start? [64s]? End? [419425019s]? 419425018 (parted) move Partition number? 1 Start? 65 End? [419425019s]? 419425019 Error: Can't move a partition onto itself. Try using resize, perhaps? Using fdisk 'b' command in expert mode ('move beginning of data in a partition') works, but it doesn't move the file system.. thanks!!

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• Master does not appear to be a git repository error

  - by EmmyS

  I've inherited a position and instructions for creating a new git repository. Unfortunately I've run into problems and no one here knows what to do. Hoping someone can help me out. Here are the instructions I was left: Create a new repository: For these steps you need to be in the gitosis-admin repository, if you don't have it, in a suitable parent folder do: git clone [email protected]:gitosis-admin.git Edit gitosis.conf file - in gitosis-admin root, under [group base-repo] section, add the name of the new repo to the end of the "writable =" section. Commit change and push back to gitosis-admin master. For the next commands, my_new_project represents the name of your project mkdir my_new_project cd my_new_project git init Copy in any files you want to use to start the repo git commit -a -m "Initializing new repository" git remote add origin [email protected]:my_new_project.git git push master git push master:qa So I did 1 and 2, with no problem. It created a local folder on my machine called gitosis-admin. I edited the gitosis.conf file as indicated. But when I try to do step 3 (which I assume is git push gitosis-admin master) bash tells me that fatal: 'master' does not appear to be a git repository fatal: The remote end hung up unexpectedly What am I doing wrong?

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• What are the possible problems, when wget returns code 500 but same request works in normal browsers?

  - by markus

  What should I be looking for, when wget returns 500 but the same URL works fine in my web browser? I don't see any access_log entries that seem to be related to the error. DEBUG output created by Wget 1.14 on linux-gnu. <SSL negotiation info stripped out> ---request begin--- GET /survey/de/tools/clear-caches/password/<some-token> HTTP/1.1 User-Agent: Wget/1.14 (linux-gnu) Accept: */* Host: testing.thesurveylab.net Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.0 500 Internal Server Error Date: Wed, 12 Dec 2012 14:53:07 GMT Server: Apache/2.2.3 (CentOS) Set-Cookie: blueprint2-staging=8jnbmkqapl30hjkgo0u6956pd1; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=8640000;includeSubdomains X-UA-Compatible: IE=Edge,chrome=1 Content-Length: 5 Connection: close Content-Type: text/html; charset=UTF-8 ---response end--- 500 Internal Server Error Stored cookie testing.thesurveylab.net -1 (ANY) / <session> <insecure> [expiry none] blueprint2-staging 8jnbmkqapl30hjkgo0u6956pd1 Closed 3/SSL 0x0000000001f33430 2012-12-12 15:53:07 ERROR 500: Internal Server Error.

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• How do I rsync an entire folder based on the existence of a specific file type in that folder

  - by inquam

  I have a server set up that receives movies to a folder. I then serve these movies using DLNA. But in the initial folder where they end up all kind of files end up. Pictures, music, documents etc. I thought I'd fix this by running the following script inside that folder rsync -rvt --include='*/' --include='*.avi' --include='*.mkv' --exclude='*' . ../Movies/ This works and scans the given folder and moves all the found movies of the given extension types to the Movies folder. But I wonder if there is anyway to tell rsync to if a folder if found that includes a movie of the given extension types, sync the entire folder. Including other files such as .srt. This is to make it easier for me to get subtitles moved along with the movie. I have a solution figured out via a script made in php (yea, I actually do most of my scripting in linux using php... just a habbit that stuck a long time ago). But if rsync can handle it from the start that would be super. Also, I have noticed that this line of rsync actually copies all the root folders in the given folder. If no movie is in the folder it will create an empty folder. How do I prevent rsync from doing this... and saving me the trouble of deleting all folder in Movies that are empty.

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• Bacula stops writing to disk volume after 2GB

  - by m.list

  Bacula Version: 5.2.5 I have configured bacula to write volumes to disk, however bacula stops writing to the volume as soon as it reaches 2gb. The file system is not an issue as I have stored files larger than 2gb. 06-Dec 17:22 backup-sd JobId 8421: End of Volume "Full-Monthly-0005" at 0:2147475577 on device "FileStorage" (/nfs/backup-pool). Write of 64512 bytes got 8069. 06-Dec 17:22 backup-sd JobId 8421: End of medium on Volume "Full-Monthly-0005" Bytes=2,147,475,578 Blocks=33,288 at 06-Dec-2012 17:22. backup1@backup:/nfs/backup-pool$ ls -alh Full-Monthly-0005 <br> -rw-r----- 1 bacula tape 2.0G Dec 3 16:14 Full-Monthly-0005 bacula-dir.conf: Pool { Name = Full-Monthly Pool Type = Backup Recycle = yes Volume Retention = 5 months Volume Use Duration = 1 day Maximum Volumes = 5 Maximum Volume Bytes = 12gb } bacula-sd.conf: Device { Name = FileStorage Media Type = File Archive Device = /nfs/backup-pool LabelMedia = yes # lets Bacula label unlabeled media Random Access = Yes RemovableMedia = no AlwaysOpen = no Label media = yes Maximum Volume Size = 12gb } In my original configuration Maximum Volume Bytes and Maximum Volume Size were not set at all and so should have defauted to no maximum but that did not work either.

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• Adventures in Drupal multisite config with mod_rewrite and clean urls

  - by moexu

  The university where I work is planning to offer Drupal hosting to staff/faculty who want a Drupal site. We've set up Drupal multisite with clean urls and it's mostly working except for some weird redirects. If you have two sites where one is a substring of the other then you'll randomly be redirected to the other site. I tracked the problem to how mod_rewrite does path matching, so with a config file like this: RewriteCond %{REQUEST_URI} ^/drupal RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ /drupal/index.php?q=$1 [last,qsappend] RewriteCond %{REQUEST_URI} ^/drupaltest RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ /drupaltest/index.php?q=$1 [last,qsappend] /drupaltest will match the /drupal line and all of the links on the /drupaltest page will be rewritten to point to /drupal. If you put the end of string character ($) at the end of each rewrite condition then it will always match on the correct site and the links will always be rewritten correctly. That breaks down as soon as a user logs in though because the query string is appended to the url so just the base url will no longer match. You can also fix the problem by ordering the sites in the config file so that the smallest substring will always be last. I suggested storing all of the sites in a table and then querying, sorting, and rewriting the config file every time a Drupal site is requested so that we could guarantee the order. The system administrator thought that was kludgy and didn't address the root problem. Disabling clean urls should also fix the problem but the users really want them so I'd prefer to keep them if possible. I think we could also fix it by using an .htaccess file in each site to handle the clean url rewriting but that also seems suboptimal since it will generate a higher load on the server and the server is intended to host the majority of the university's external facing web content. Is there some magic I can do with mod_rewrite to get it to work? Would another solution be better? Am I doing something the wrong way to begin with?

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• validate weblogic security realm user through java

  - by user1877246

  i have installed weblogic '10.3.4.0' and have created a user in the default security realm 'myrealm'. The authenticator is DefaultAuthenticator. Now, I have to authenticate the user through a stand alone java application. But the application is resposning with 'LDAP: error code 49 - Invalid Credentials': CODE-START ** Properties l_props = new Properties(); LdapContext l_ctx = null; l_props.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); l_props.put(Context.PROVIDER_URL, "ldap://localhost:7001"); l_props.put(Context.SECURITY_AUTHENTICATION, "simple"); l_props.put(Context.SECURITY_PRINCIPAL, "cn=username"); l_props.put(Context.SECURITY_CREDENTIALS, "password"); l_ctx = new InitialLdapContext(l_props, null); ** CODE-END ** * ERROR-START * javax.naming.AuthenticationException: [LDAP: error code 49 - Invalid Credentials] at com.sun.jndi.ldap.LdapCtx.mapErrorCode(LdapCtx.java:3041) at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2987) at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2789) at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2703) at com.sun.jndi.ldap.LdapCtx.(LdapCtx.java:293) at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175) at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193) at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:136) at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:66) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.ldap.InitialLdapContext.(InitialLdapContext.java:134) at com.iflex.fcat.misc.TestLDAP.createInitialLdapContext(TestLDAP.java:258) at com.iflex.fcat.misc.TestLDAP.authenticate(TestLDAP.java:170) at com.iflex.fcat.misc.TestLDAP.main(TestLDAP.java:125) ERROR-END

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• Is it possible to use ffmpeg to trim off X seconds from the beginning of a video with an unspecified length?

  - by marcelebrate

  I need to trim the just the first 1 or 2 seconds off of a series of FLV recordings of varying, unspecified lengths. I've found plenty of resources for extracting a specified duration from a video (e.g. 30 second clips), but none for continuing to the end of a video. Both of these attempts just yield a copied version of the video, sans desired trimming: ffmpeg -ss 2 -vcodec copy -acodec copy -i input.flv output.flv ffmpeg -ss 2 -t 120 -vcodec copy -acodec copy -i input.flv output.flv The thought on the second one was: perhaps if I specified a length beyond what was possible, it'd just go to the end. No dice. I know it's not an issue with codecs or using seconds instead of timecode since the following worked a charm: ffmpeg -ss 2 -t 5 -vcodec copy -acodec copy -i input.flv output.flv Any other ideas? I'm open to using other (Windows-based) command line tools, however am strongly favoring ffmpeg since I'm already using it for thumbnail creation and am familiar with it. If it helps, my videos will all be under 2 minutes.

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• Minecraft server hosting hardware specifications [on hold]

  - by Andrew Wright

  I am planning on purchasing a server to rent off Minecraft game servers, largely to friends. I am planning on purchasing a 128GB RAM server to save on colocation costs (as I am likely to need more than 32GB and would have to rent 2U of space...) I am hoping for some advice about the processing power needed to deal with this level of RAM. The servers will be run in a shared environment on linux in a VM to make backups easier. The server I have in mind is dual CPU. I have been considering at the low end dual Xeon E5-2609V2 Quad-Core 2.5Ghz, and at the high end dual Xeon E5-2650V2 Eight-Core 2.6Ghz. The difference between these is 6.4 GT/s and 8 GT/s and £3000 for the lower spec server, £4300 for the higher spec. I was hoping I could get advice about whether it is worth paying for the extra/higher speed processor or if I would be wasting my money? Thank you for any help - I appreciate that this is not directly related to professional system administration.

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• Specific issue on data pump API in oracle

  - by Median Hilal

  I have a client/server architecture. Using an Oracle dbms on the database server side. I need to perform a user-triggered (from client side) backup of the database, where the best way to perform that is using a stored procedure on the server side which the client may call, as the client has no oracle tools to perform the backup. I've searched thorough inside available solutions and have found that using a stored procedure is the best way. Well, then I found that using oracle data pump API is the best way to use inside a PL/SQl stored procedure. My specific questions about the API are... I would like to ask about two issues ... ---- The first ----- the detach function to detach the handler, is it necessary to be used at the end of the procedure? and what if I don't use it? I read the Oracle documentation but I didn't get their point, they say it doesn't terminate the job but indicates that the user is not interested in it, an when I use detach at the end of my procedure the exported .dmp file disappears. ---- The second ----- to perform a user (client side) triggered back up as the modification are only to the data, I used TABLE parameter for the export operation. But the version parameter... what should it be? I also read the documentation but couldn't determine what I need (LATEST or COMPATIBLE) ? Thanks

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• How to find the reason for a weekly downtime on an Ubuntu web server hosted by AWS?

  - by IceSheep

  We started monitoring our web server using Pingdom and found out that we have a downtime of a few minutes every Sunday at 0:00 UTC. The test runs every minute and checks if a successful HTTP response (code 200) is returned on port 80. The test fails due to a timeout (no response after 30 seconds). Here's what we've already checked – without success: Since we run our webserver behind a load balancer, I've set the Pingdom test on the load balancer's public DNS and the webserver's public DNS in order to find out if there's a problem with the AWS load balancer – both tests return the same result We set up Munin on our webserver. Everything looked fine even after the failure. Since the last failure lasted only 2 minutes I suppose Munin couldn't capture a potential problem (it only checks every 5 minutes) I have checked /var/log/apache2/error.log and /var/log/syslog for suspicious entries I have checked /etc/cron.weekly and /etc/crontab for suspicious entries I have searched for files created or last-modified during 0:00 and 0:15 using this method: touch -t 201209020000 start touch -t 201209020015 end find / -newer start -and ! -newer end (nothing found) Has anybody experienced a similar problem? Any proposals on how to find the reason for this behavior? It's Ubuntu 10.04 LTS running on an AWS m1.large instance. Thanks!

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• Compiz & Linux compositing: how does it fit into the X architecture?

  - by Latanius

  Not a really "how to solve stuff" question, but... I was wondering how the modern X architecture works, with compiz & all. What I know about it: in the beginning, there was the X server, clients connected (presumably on TCP), and then sent messages to the server to instruct it to show windows etc. because this didn't work (at all? or just fast enough?) for OpenGL & 3D acceleration, additional APIs were created for direct rendering (DRI? and, in addition to the X server, what things did the X clients talk to to render stuff and through what interfaces?) and, finally, enter Compiz: X clients end up (somehow) rendering to OpenGL textures, which is then put together to form a fancy-looking screen with translucent windows, and rendered to the screen. What I'm especially interested in is what components does the system have and how do they connect to each other? Like... if there is a box labelled "compiz" in the system... is it inside the X server? If it's not, how do the rendered images from the apps end up in it? And where does it render to? Is that another X server? Or DRI? Of course, I'd be equally happy if pointed to some docs capable of clearing up the confusion described above (conditional on they being significantly shorter than book-sized entities).

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• Can you see something wrong in my working .htaccess?

  - by AlexV

  OK, after many search, trial and errors I've managed to create an .htaccess that do what I wanted (see explanations and questions after the code block): <IfModule mod_rewrite.c> RewriteEngine On #1 If the requested file is not url-mapper.php (to avoid .htaccess loop) RewriteCond %{REQUEST_FILENAME} (?<!url-mapper\.php)$ #2 If the requested URI does not end with an extension OR if the URI ends with .php* RewriteCond %{REQUEST_URI} !\.(.*) [OR] RewriteCond %{REQUEST_URI} \.php.*$ [NC] #3 If the requested URI is not in an excluded location RewriteCond %{REQUEST_URI} !^/seo-urls\/(excluded1|excluded2)(/.*)?$ #Then serve the URI via the mapper RewriteRule .* /seo-urls/url-mapper.php?uri=%{REQUEST_URI} [L,QSA] </IfModule> This is what the .htaccess should do: #1 is checking that the file requested is not url-mapper.php (to avoid infinite redirect loops). This file will always be at the root of the domain. #2 the .htaccess must only catch URLs that don't end with an extension (www.foo.com -- catch | www.foo.com/catch-me -- catch | www.foo.com/dont-catch.me -- don't catch) and URLs ending with .php* files (.php, .php4, .php5, .php123...). #3 some directories (and childs) can be excluded from the .htaccess (in this case /seo-urls/excluded1 and /seo-urls/excluded2). Finally the .htaccess feed the mapper with an hidden GET parameter named uri containing the requested uri. Even if I tested and everything works, I want to know if what I do is correct (and if it's the "best" way to do it). I've learned a lot with this "project" but I still consider myself a beginner at .htaccess and regular expressions so I want to triple check it there before putting it in production...

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• Server down at 23:26 every night

  - by miccet

  We are having a big problem with our sites stability the last couple of weeks and after endless hours of troubleshooting I don't get anywhere. So I turn to you dear community. Setup: 2 x VPS servers - Front end, 8 core, 8G RAM. - Database, 5 core, 3G RAM. Both running Ubuntu. Ruby on Rails EE with Passenger 3 and Rails 2.3.11. MySQL 5.1.67. The problem is that each night, at the exact same time (23:26) the SQL server suddenly shows a processlist full of COMMIT with an increasing Time. After 30-40 seconds (can go longer) a wave seems processed and the site responds for a few seconds before it repeats. During this hick up the database server load spikes while the front end is relaxing. I have looked at slow queries, but is not finding any locks or other unusual queries ran at this time. I have looked at iotop at the time of the halt and there is no activity from mysql. I also tried turning off query_cache and messed around with the mysql configuration file without much change. Any ideas?

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• Set up layer 2 vlan between 2 data centres

  - by user41679

  Hello, Our data centre provider operates 2 sites, and we currently have equipment in one and would like to have equipment in the second. They've told me that they operate a layer 2 vlan between the 2 sites over a 20gbit connection, and that they'd just give me ethernet cable at each end to connect the locations. At the current site, we have Cisco 2960 48TC-L switches, all the machines are on a 192.168.x.x subnet and we have cisco firewalls with which we connect to our internet provider with. My question is what would I need to do to connect the 2 sites? could I just plug the ethernet cables the provide into the cisco switches, and have the same switches the other end? would I need to set up a separate internal network on the other side and connect both through the firewalls? Would the cisco switches need special configuration? We expect to maintain a number of connections between the 2 sites, and each site would have its own internal dns name like dc1.xx.com. Sorry if I'm being vague or haven't included enough information, I've a fairly good knowledge of hardware but we're down a netops guy at the moment and I'd like to get both sites on-line ASAP! Thanks in advance!

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• Is there any equivalence of `--depth immediates` in `git`?

  - by ???

  Currently, I'm try to setup git front-end to the Subversion repository. My Subversion repository is a single large repository which consists of several co-related projects: svn-root |-- project1 | |-- branches | |-- tags | `-- trunk |-- project2 | |-- branches | |-- tags | `-- trunk `-- project3 |-- branches |-- tags `-- trunk Because it's sometimes needs to move files between different projects, so I don't want to break the repository to separate ones. I'm going to use git-svn to setup a git front-end, but I don't see how to exactly mapping the svn to git structure. The two systems treat branches and tags very different and I doubt it is possible. To simplify the problem, I would just git svn clone the whole root directory and let branches/tags/trunk directories just sit there. But this will definitely result in too many files in branches and tags directories. In Subversion, it's easy to just set the depth of checkout to immediates, which will only checkout the branch/tag titles, without the directory contents. but I don't know if this can be done in git. The git-svn messed me up. I hope there's more elegant solution.

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• XMLPULLPARSEREXCEPTION...in KSOAP2

  - by aka47

  iam using KSOAP2 for web services. my client is BlackBerry Phone and Server is KeyRingLabs.com. i am using php page for connection...i have taken this code form a Forum.and modified it according to my requirements...but I am having XMLPULLPARSER EXCEPTION...can any body help??? here is my code.... import net.rim.device.api.ui.; import net.rim.device.api.ui.component.; import net.rim.device.api.ui.container.; import net.rim.device.api.system.; import java.util.; import org.ksoap2.; import org.ksoap2.serialization.; import org.ksoap2.transport.; import java.io.IOException; import org.ksoap2.SoapEnvelope; import org.ksoap2.SoapFault; import org.ksoap2.serialization.SoapObject; import org.ksoap2.serialization.SoapSerializationEnvelope; import org.ksoap2.transport.HttpTransport; import org.xmlpull.v1.XmlPullParserException; final class StockQuoteDemo extends UiApplication { public static void main (String[] args) { StockQuoteDemo theApp = new StockQuoteDemo (); theApp.enterEventDispatcher (); } public StockQuoteDemo () { pushScreen (new StockQuoteScreen ()); //doSOAP(); } final class StockQuoteScreen extends MainScreen { public static final String action = "http://keyringlabs.com/Login"; public static final String namespaceRoot = "bbpointofsale.com"; //public static final String webroot = "http://192.168.1.2/bbpointofsale.com/"; public static final String webroot = "http://192.168.0.35/"; //public static final String webroot = "http://www.bbpointofsale.com"; public String errorMessage; public String key; public String transactionID; private HttpTransport transport; private SoapSerializationEnvelope envelope; public StockQuoteScreen () { //transport = new HttpTransport(webroot + "bb/service/index.php"); transport = new HttpTransport(webroot+"Disk/rashid11/index4.php"); transport.debug = true; envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12); key = null; envelope.encodingStyle = SoapSerializationEnvelope.XSD1999; ProcessLogin("[email protected]","123456"); //Dialog.alert("GEN 1"); //Dialog.alert("Warr Gai Vai!!!"); } public boolean onClose () { Dialog.alert ("Goodbye!"); System.exit (0); return true; } public boolean ProcessLogin(String email, String password) { System.err.println("Starting The Process"); errorMessage = ""; String namespace = "urn:" + namespaceRoot + ":login"; //System.err.println("LINK:"+namespace); // SoapObject message = new SoapObject(namespace, "login"); SoapObject message = new SoapObject(namespaceRoot, "login"); message.addProperty("email", email); message.addProperty("password", password); envelope.bodyOut = message; // System.err.println("KSOAP:"+ envelope.toString()); //String soapAction = namespace + "#login"; String soapAction = "http://bbpointofsale.com/login"; // System.err.println("Action : "+soapAction); try { //transport.setXmlVersionTag(""); transport.call(soapAction, envelope); } catch (IOException e) { e.printStackTrace(); System.out.println("error: "+e.getMessage()); errorMessage = e.getMessage(); System.out.println("response1: "+transport.responseDump); return false; } catch (XmlPullParserException e) { e.printStackTrace(); errorMessage = e.getMessage(); System.out.println("request2: "+transport.requestDump); System.out.println("response2: "+transport.responseDump); return false; } try { SoapObject result = (SoapObject) ((SoapObject)envelope.getResponse()).getProperty(0); key = hackToGetResponse("serviceToken", result.toString()); if (key.length() > 0) { System.out.println("KEY:" + key); return true; } else { } } catch (SoapFault e) { errorMessage = e.getMessage(); System.out.println("response3: "+transport.responseDump); return false; } catch (Exception e) { errorMessage = e.getMessage(); System.err.println("response4: "+transport.responseDump); return false; } return false; } public String hackToGetResponse(String key, String response) { System.out.println("hackToGetResponse:" + response); String start = "anyType{key=" + key + "; value="; String end = "; }"; if (response.indexOf(start) == -1 || response.indexOf(end) == -1) return ""; System.out.println("hackToGetResponse:" + "response.substring(0, " + response.indexOf(start) + ").substring(0, " + response.indexOf(end) + ");"); response = response.substring(response.indexOf(start) + start.length()); response = response.substring(0, response.indexOf(end)); if (response.indexOf("anyType{}") != -1) return ""; return response; } } } //******************PHP FILE************************ $server = new SoapServer(null, array('uri' = "urn:keyringlabs.com")); //$server = new SoapServer(null, array('uri' = "urn: bbpointofsale.com")); $server-addFunction("login"); //$email='[email protected]'; //$pass='123456'; function login($email, $pass) { if (strlen($email) == 0) { return Array('serviceToken' => ''); } elseif (strlen($pass) == 0) { return Array('serviceToken' => ''); } else { $objMerchant = Merchant::LoadByEmailPassword($email, $pass); if ($objMerchant == null || $objMerchant->Id &lt==1) { return Array('serviceToken' => ''); } else { $key = uniqid(); $objSess = new Merchantsessions(); $objSess->MerchantID = $objMerchant->Id; $objSess->ServiceToken = $key; $objSess->Save(); } } $result = Array('serviceToken' => $key); //print $result; return $result; } ? ///**************************************** is there any need of an XML page or something..to run it perfectly...please help thank you for your time!

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