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  • Dynamically loading chef recipies from URLs

    - by andy
    I'm deploying a web app on AWS. I intend to use chef to build AMIs which I'll then put into production. I want to have Chef monitor a URL stored in simpleDB. The URL would point to a tarball in S3. There would be different URLs, one for a config tarball, one for a code tarball. When I update the URL in simpleDB, I want chef to spot this and pull in and apply the configs/deploy the code. Is this possible? Has anything like this been done before or would I need to roll my own code? I think Chef can monitor URLs, but how would be the best way of getting it to load that URL from simpleDB?

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  • microsoft mouse and keyboard center doesn't show my mouse

    - by Andy
    as part of a recent windows update, the irritating and intrusive intellipoint microsoft mouse software now seems to have been replaced by the even more irritating and intrusive "microsoft mouse and keyboard center[sic]" I am left handed and need to switch the left and right mouse buttons round. the option to do this has disappeared from the mouse control panel, to be replaced by a link which opens up said mouse and keyboard center. this in turn is a window which allows me to change settings on the keyboard but does not have any way to control mouse settings any hints would be very welcome. this is driving me nuts.

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  • Puppet apache module causing 'Error 400 on SERVER: Invalid parameter identifier'

    - by Andy Shinn
    I am receiving the following error when trying to use the latest puppetlabs-apache module from github (https://github.com/puppetlabs/puppetlabs-apache): Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Invalid parameter identifier at /etc/puppet/environments/apache_update/modules/apache/manifests/mod.pp:40 on node zordon.mydomain.com Warning: Not using cache on failed catalog Error: Could not retrieve catalog; skipping run My node config looks like: node 'zordon.mydomain.com' { include template::common include template::puppetagent include template::lamp User::Create sudo::conf { 'joe': priority = 60, content = 'joe ALL=(ALL) NOPASSWD: ALL', require = User::Create['joe'], } } The template::lamp class is what uses apache module: class template::lamp { include myfirewall Firewall Firewall class { 'apache': } class { 'apache::mod::php': } class { 'apache::mod::ssl': } class { 'mysql::server': } } It looks like serverfault markup is getting garbled on Puppet realize statements. The User::Create and Firewall lines are just realizing a user and 2 firewall rules. I have verified that the /var/lib/puppet/lib/puppet/type/a2mod.rb type has the identifier parameter and it is the same MD5 as the server. I am using Puppet 3.0.1 on both agent and master. Any idea what may cause this?

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  • How to make VLC show single FLAC file containing many tracks as separate tracks

    - by Bryce Thomas
    I have a single .flac file that encompasses multiple tracks comprising a music album along with the corresponding .cue file. I'm running Ubuntu 10.04 with VLC player, and am trying to get VLC player to show the individual tracks and allow me to use the previous and next controls to move back and forth between tracks. The problem I'm having is that when I open the single .flac file with VLC, it just shows a single track the duration of the entire album, and I'm unable to skip back and forth between tracks. Is there any way to have VLC show the individual tracks contained within a .flac file without having to pre-split the .flac file into individual track files first?

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  • Why does explorer restart automatically when I kill it with Process.Kill?

    - by Thomas Levesque
    If I kill explorer.exe like this: private static void KillExplorer() { var processes = Process.GetProcessesByName("explorer"); Console.Write("Killing Explorer... "); foreach (var process in processes) { process.Kill(); process.WaitForExit(); } Console.WriteLine("Done"); } It restarts immediately. But if I use taskkill /F /IM explorer.exe, or kill it from the task manager, it doesn't restart. Why is that? What's the difference? How can I close explorer.exe from code without restarting it? Sure, I could call taskkill from my code, but I was hoping for a cleaner solution...

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  • Nagios simple dashboard

    - by Thomas
    I am looking for a dead simple dashboard for Nagios so our IT team can view the status of our services. In an old version of what's up gold, it was a nice dashboard with different rectangular shape being red, yellow or green depending on the status of the service and could be display easily on a screen. Is there some copycat dashboard for nagios ? any better recommendation ? I want something you can see from your desk 15meters away: red or green, no need for details.

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  • search solution to integrate community mailing-lists into a website on shared hosting

    - by Thomas Traub
    The community (300 members), cocktailnetwork, has a website, cocktailnetwork.eu and about ten mailing lists. We want to manage the mailing lists from inside the website (lists and subscribers) and link the list's informations with the member profiles on the site. We are on shared hosting. The community members use the lists to send mails to all other members / groups of members. They can subscribe / unsubscribe from a list. The administrators can in addition create / delete / modify lists. Right now I use ezmlm with QmailAdmin, the lists are completly seperated from the website. I could link the data via remote administration commands, but that's not very satisfactory, does not allow the creation of new lists and it's an deprecated feature of our hosting package, sooner or later we'll need to switch anyway. Do You know of an elegant solution for us ? Any web service with a good, stable API ? Thanks.

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  • Chrome not selecting correct language for Help tab

    - by Andy
    When I click Help in Chrome, a new tab appears with the Google help links etc as expected, but I have a message saying: "This Help Centre is not currently available in your language...", etc. The drop down box at the bottom is not selected correctly for en-GB (my location). Instead it is set at the first language on the list. This happens if I am signed in to my Google account or not. Selecting English from the drop-down works ok, so no great drama. Just wondering if anybody else sees this behaviour? EDIT: Using current stable build 8.0.552.224

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  • Modifier key bug with Adobe Design Standard CS4 (Mac OS 10.6.6)

    - by Andy
    When I launch the Adobe apps, they ask me if I want to delete the preferences file. I say 'no'. Then, when using the apps, none of the tools seem to work properly, eg in Illustrator, I can't move objects without it duplicating the object. Photoshop constantly displays the contextual menu icon that usually only appears when you hold down the control key. I can't do any work in them when this happens, so I am forced to log out and then back in. They work for a while and then this annoying bug happens again. I think it must be to do with the modifier keys (command option and control). I think Adobe's apps must think I'm permanently pressing the modifier keys down - the thing is, no other app on my machine has this problem! Does anyone else experience this? Or have a fix for it? Any suggestions much appreciated. Running: Mac OS X 10.6.6 on an iMac. Adobe CS4 Design standard installed.

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  • Dual DVI external monitors from laptop using HDMI

    - by Andy Evans
    I know there may be a few questions similar to this, but my question is regarding specific hardware configuration. I have an Asus U52f laptop with an HDMI out that I currently use to drive my 24" DVI external monitor. My question is I found an HDMI - dual DVI splitter here and was wanting to know is has anyone tried this type of configuration or would the Matrox DualHead2Go be a better solution.

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  • SSL connection error during handshake on Windows Server 2008 R2

    - by Thomas
    I have a Windows 2008 R2 Server that runs a HTTPS Tunneling service. The software uses a certificate that is provided via the Windows certificate store. The certificate is located in the local computer private certificates. It supports server and client authentication with signing and keyencipherment. Cert chain The certificate chain looks fine. It's a Thawte SSL123 certificate. Thawte Premium Server CA (SHA1) [?e0 ab 05 94 20 72 54 93 05 60 62 02 36 70 f7 cd 2e fc 66 66] thawte Primary Root CA [?1f a4 90 d1 d4 95 79 42 cd 23 54 5f 6e 82 3d 00 00 79 6e a2] Thawte DV SSL CA [3c a9 58 f3 e7 d6 83 7e 1c 1a cf 8b 0f 6a 2e 6d 48 7d 67 62] Server certificate Issues Most browsers accept the certificate without any warning. But IE 7 on Windows XP SP3 and Opera 12 on OSX just report an connection error. Opera complains: Secure connection: fatal error (552) https://www.example.com/ Opera was not able to connect to the server, because the server does not communicate via any secure protocol known to Opera. A connection test using openssl s_client -connect www.example.com:443 -state says: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv2/v3 write client hello A 52471:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:/SourceCache/OpenSSL098/OpenSSL098-35.1/src/ssl/s23_lib.c:182: ssldump -aAHd host www.example.com during curl https://www.example.com/ reports: New TCP connection #1: localhost(53302) <-> www.example.com(443) 1 1 0.0235 (0.0235) C>SV3.1(117) Handshake ClientHello Version 3.1 random[32]= 50 77 56 29 e8 23 82 3b 7f e0 ae 2d c1 31 cb ac 38 01 31 85 4f 91 39 c1 04 32 a6 68 25 cd a0 c1 cipher suites Unknown value 0x39 Unknown value 0x38 Unknown value 0x35 TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA TLS_RSA_WITH_3DES_EDE_CBC_SHA Unknown value 0x33 Unknown value 0x32 Unknown value 0x2f Unknown value 0x9a Unknown value 0x99 Unknown value 0x96 TLS_RSA_WITH_RC4_128_SHA TLS_RSA_WITH_RC4_128_MD5 TLS_DHE_RSA_WITH_DES_CBC_SHA TLS_DHE_DSS_WITH_DES_CBC_SHA TLS_RSA_WITH_DES_CBC_SHA TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA TLS_RSA_EXPORT_WITH_DES40_CBC_SHA TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 TLS_RSA_EXPORT_WITH_RC4_40_MD5 Unknown value 0xff compression methods unknown value NULL 1 0.0479 (0.0243) S>C TCP FIN 1 0.0481 (0.0002) C>S TCP FIN Thawte provides two Java based SSL Checkers. The Legacy Thawte SSL Certificate Installation Checker and the sslToolBox. Both validate the certificate under Windows XP but report connection errors under OSX and Windows 2008 R2.

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  • What could cause my browserS to keep crashing?

    - by Guy Thomas
    The situation: Windows 7 ultimate on standard box 4 GB RAM. The problem: IE 8 kept on crashing. Tried upgrading to IE 9 - no better. Then I thought I will have to kick IE into touch and go with Firefox. Same problem Firefox crashes. Gave Chrome a chance - same problem the browser just says sorry, and closes / restarts. Other problems, this is not the best machine I have ever had, Word sometime closes unexpectedly, and I have trouble with Microsoft Updates failing first time.

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  • Restoring using SyncBack without profiles

    - by Thomas Matthews
    I backed up my internal hard drive (C:) using SyncBack onto an external (USB) hard drive with maximum compression. I then performed a clean install of Windows Vista onto the computer. I forgot to copy the SyncBack logs before the clean install. And now when ever I try to restore a directory, the RAR/ZIP files are copied to the system hard drive instead of extracting their contents to the hard drive. Also, SyncBack is not traversing the folders during the Restore process. How can I tell SyncBack to expand the compressed files? I am running the freeware version of SyncBack. I have to create new log files (unless SyncBack put them somewhere on the external drive). My alternative is to write a program that traverses the folders on the external drive and extracts files from the RAR/ZIP files. I am using Windows Vista, Service Pack 2, and the data size prior to backup was about 200 GB. (The backup process took over 72 hours due to "hiccups").

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  • Excel 2007 Macro Changes?

    - by Guy Thomas
    My excel macros are no longer working as designed. Last week they worked as expected, this week a different result. I even tried a two year old version, it did not work the way it used to. Guy's conclusion an Office / Excel update changed the macro behaviour. Am I alone in this conclusion? If so I'll take a different troubleshooting approach.

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  • Configuring ejabberd on ubuntu ami of amazon ec2

    - by andy
    This is my first experience with ejabberd. Spare me if I miss anything. I have installed ejabberd server on ubuntu 12.04 AMI on Amazon EC2. I have successfully installed the server, added the admin user and host in the config file and opened up reqd ports (5222, 5223, 5269, 5280). Now I tried to login the web admin interface using the admin user id and password. I could log in, BUT I could only see one section, Virtual Hosts. No Control Lists, Access rules, Nodes and Statistics Menu items on the left. Also, when I click Virtual Hosts Menu item, the page that comes up does not show anything. Here are the screenshots

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  • How can I join non-consecutive partitions on internal hard disk?

    - by Andy
    I recently installed a new, larger hard disk in my PC at work (the office wouldn't spring for an upgrade for my 75GB disk, so I brought my own 2TB disk in from home). I managed to clone the original drive using CloneZilla, but now I have a 75GB partition on my new drive, followed by a 300MB partition, followed by a 1794.65GB of unallocated space. What I want is to add the unallocated space to the 75GB partition, thereby maximizing my C: drive. However, when I right-click on the C: partition, the option to "Extend Volume" is grayed out. How do I get all my fancy new extra space to be part of my C: drive? I also tried booting with GParted, but I get the same deal - cannot adjust the C: drive because there's no contiguous space.

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  • NFS robustness or weaknesses

    - by Thomas
    I have 2 web servers with a load balancer in front of them. They both have mounted a nfs share, so that they can share some common files, like images uploaded from the cms and some run time generated files. Is nfs robust? Are there any specific weaknesses I should now about? I know it does not support file locking but that does not matter to me. I use memcache to emulate file locking for the runtime generated files. Thanks

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  • Solaris TCP/IP performance tuning

    - by Andy Faibishenko
    I am trying to tune a high message traffic system running on Solaris. The architecture is a large number (600) of clients which connect via TCP to a big Solaris server and then send/receive relatively small messages (.5 to 1K payload) at high rates. The goal is to minimize the latency of each message processed. I suspect that the TCP stack of the server is getting overwhelmed by all the traffic. What are some commands/metrics that I can use to confirm this, and in case this is true, what is the best way to alleviate this bottleneck? PS I posted this on StackOverflow originally. One person suggested snoop and dtrace. dtrace seems pretty general - are there any additional pointers on how to use it to diagnose TCP issues?

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  • How to erase a SSD to restore factory performance in Linux?

    - by Andy B
    Due to big performance issues with an mdraid-1 array I'd like to pull down from the array one of the devices (Samsung 840 Pro), erase it to restore factory performance and re-add it to the array. The reason I want to do this to one of the SSDs is because the poor performance seems to be related to one specific SSD out of the two (although they are the same brand, model and firmware ver). But how do I erase a SSD from Linux? I mention that hdparm indicates that both drives are frozen at this time. Maybe because they are part of an md array? Thanks in advance!

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  • How to take screenshots of WPF applications in correct size and content

    - by Thomas W.
    I usually take screenshots of single windows via the built-in key combination Alt+Print. Unfortunately this does not work well for more and more applications - all of them are WPF applications. Usually the screen shots have at least one of the following properties: the screenshot is larger than expected and contains parts of the screen around the actual window the screenshot has the correct size but includes parts of other windows, e.g. the Windows task bar. Of course the task bar might be in front of the window, but taking screen shots of "normal" programs works fine. How do I take screenshots of WPF application which are correct in size and content? I'd like to avoid the extra effort of checking all the screenshots for correctness, reproducing the situation, taking them again in case of issues or repairing/faking them manually in any pixel manipulation program (e.g. Paint.NET). I observe this on Windows 7 x64 SP 1, all official updates installed, but it might apply to other Windows versions as well (not tested yet). .NET 4.5 is installed. The application itself might only need the built-in .NET 3.5.1. It's reproducible on a virtual machine with the same settings. Examples: Screenshot of an application running in maximized mode. The screen shot includes parts of the task bar. Screenshot of a progress dialog which is behind the task bar. The screenshot also includes the task bar, while it doesn't for non WPF applications.

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  • portal/forum for small companies to get technology help

    - by thomas
    I understand this is an open ended question and not quite sure how to add this to community wiki, if that is appropriate. I am doing a little research on where small companies would go on the internet to get answers for technology related questions. Could be around sales, servers, programming, etc. Clearly superuser.com, serverfault.com, and stackoverflow.com are excellent starting points. I am just wondering if anyone has heard of any others. Think a "facebook" that links technology providers with small companies to help answer questions and potentially provide/offer solutions. Thanks!

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  • Ubuntu 10.04 freezing and Ctrl + Alt + Backspace does nothing but music keeps playing

    - by Bryce Thomas
    I'm having intermittent problems where the screen will freeze in Ubuntu. I've tried using Ctrl + Alt + Backspace to restart the X-server, though this does nothing. When the freeze occurs, there's a small square of black dashes around the mouse pointer - maybe 1 inch in size. These dashes look a lot like a 2d barcode. The rest of the screen looks normal, but I can't move the mouse and none of the keyboard shortcuts work to do anything. However, music that I begin playing before the freeze continues to play, which seems to indicate it hasn't stalled up completely. I've noticed a similar freezing problem when I'm using Windows 7. That is, I see the same barcode like dashes around the mouse pointer when it freezes up. So I'm guessing it's either a driver or hardware problem. I thought if it was a hardware problem though, the whole computer might stop working (i.e. music would stop playing)? The video card I am using is an Nvidia, and I believe it's in the 7600 range. In Ubuntu I have the drivers for the card set to the latest available (proprietary). Ideally I'd like to be able to continue using the proprietary drivers. Is there any known issues with the drivers for this model graphics card, or has anyone experienced the same problem and knows how to fix it?

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