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• How can I prevent an unintentional DDOS running ColdFusion 8 with IIS 6?

  - by Eric Belair

  We had an interesting outage today on one of our client's websites. Out of nowhere, the website was inaccessible. The website runs by itself on a dedicated physical Windows 2000 server (probably overkill, I know, but that's a discussion for a different day). After restarting IIS and ColdFusion Application Service, the problem came back several times. My initial thought was that it was a DNS issue, which happens occasionally - the last time it happened was after Hurricane Sandy when we our ISP was out, and we had to make some network config changes. But, it was not a DNS issue. My second thought was that it was a DDOS attack, but, there's very little reason anyone would want to take this site down. When we called our ISP, the operator on the other end noted that traffic was spiking significantly. As it turned out, the client had unintentionally caused a DDOS on the website, after they FTPed a very large video file, and then mass emailed a link to it. Hundreds of people clicked the link and brought the site to its knees. I am primarily a Website Programmer, but I often have to contribute to server administration at times. Sadly, I'm the resident ColdFusion and IIS expert, but I don't have a lot of experience with this issue. What are some basic steps that I can take to prevent this from happening in the future, since we cannot always control what files the client posts to the website. Here are some ideas I had, but I'm unsure of the impact: Limit the number of connections in IIS. Put media files on a separate server (like an Amazon site, etc.). File requests of this type currently behind a server-script (i.e. /www.site.com/viewFile.cfm?fileId=1424545, where the fileId references a file off the webroot) that logs requests, and pushes the file to the browser using CFCONTENT. I could edit this script to reject requests when they exceed a certain amount in a given time-frame (i.e. a 5MB can be accessed globally 10 times in an hour). This may cause some users frustration, but, if hundreds of users are attempting to view the file, the site is going to crash anyways, as it did today, which is way more frustrating, since there is no "pretty" message explaining why they can't get to the file. I'm open to any suggestions, as I'm continuing my research to report to the CTO with the best options, so that we can put a solution into effect. Thank you.

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• SSH_ORIGINAL_ENVIRONMENT error with snow leopard client to a gitosis server on debian

  - by Mica

  I have a server running gitosis (installed from the package manager) on debian lenny. I am able to perform all operations from my linux mint laptop, but from my Mac running an up-to-date Snow Leopard gives me the following error: mica@waste Desktop$ git clone [email protected]:Poems.git Initialized empty Git repository in /Users/micas/Desktop/Poems/.git/ ERROR:gitosis.serve.main:Repository read access denied fatal: The remote end hung up unexpectedly mica@waste Desktop$ ssh -v [email protected] OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009 debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug1: Connecting to 192.168.0.156 [192.168.0.156] port 22. debug1: Connection established. debug1: identity file /Users/micas/.ssh/identity type -1 debug1: identity file /Users/micas/.ssh/id_rsa type 1 debug1: identity file /Users/micas/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-5 debug1: match: OpenSSH_5.1p1 Debian-5 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '192.168.0.156' is known and matches the RSA host key. debug1: Found key in /Users/mica/.ssh/known_hosts:5 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering public key: /Users/mica/.ssh/id_rsa debug1: Remote: Forced command: gitosis-serve mica@waste debug1: Remote: Port forwarding disabled. debug1: Remote: X11 forwarding disabled. debug1: Remote: Agent forwarding disabled. debug1: Remote: Pty allocation disabled. debug1: Server accepts key: pkalg ssh-rsa blen 277 debug1: Remote: Forced command: gitosis-serve micas@waste debug1: Remote: Port forwarding disabled. debug1: Remote: X11 forwarding disabled. debug1: Remote: Agent forwarding disabled. debug1: Remote: Pty allocation disabled. debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug1: Requesting [email protected] debug1: Entering interactive session. debug1: Requesting authentication agent forwarding. PTY allocation request failed on channel 0 ERROR:gitosis.serve.main:Need SSH_ORIGINAL_COMMAND in environment. debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug1: client_input_channel_req: channel 0 rtype [email protected] reply 0 debug1: channel 0: free: client-session, nchannels 1 Connection to 192.168.0.156 closed. Transferred: sent 2544, received 2888 bytes, in 0.1 seconds Bytes per second: sent 29642.1, received 33650.3 debug1: Exit status 1 Extensive googling of the error isn't returning much-- I changed the /etc/sshd_config file on my Mac as per http://www.schmidp.com/2009/06/23/enable-ssh-agent-key-forwarding-on-snow-leopard/. I still get the same error.

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• broken apache .htaccess (mod_rewrite)

  - by Tim

  Hey there, I'm running into an apache mod_rewrite configuration issue on one of our machines. Has anyone encountered / overcome anyone of these issues. URL1 ( http://www.uppereast.com ) is not being redirected to URL2 ( http://www.nyclocalliving.com ). This definitely worked in my test environment where a localhost address was rewritten to URL2 ( RewriteRule ^http://upe.localhost$ http://www.nyclocalliving.com ). I'm trying to get the all of the redirect rules working ( 2200 + ), but the 'http://www.nyclocalliving.com' site encounters a server error if I use more that 1000 or more rules. A) .htaccess file - I've tried the simplest approach which worked in a local environment 75 # Various rewrite rules. 76 <IfModule mod_rewrite.c> 77 RewriteEngine on 78 79 # BEGIN new URL Mapping rules 80 #RewriteRule ^http://www.uppereast.com/$ http://www.nyclocalliving.com ... 2307 #RewriteRule ^http://www.uppereast.com/zipcodechange.html$ http://www.nyclocalliving.com/zip-code-change fig. 1 B) /var/log/httpd/error_log file - there are these seg. fault errors when I enable the first rule ( line 80 ). no error logs otherwise. 1893 [Fri Sep 25 17:53:46 2009] [notice] Digest: generating secret for digest authentication ... 1894 [Fri Sep 25 17:53:46 2009] [notice] Digest: done 1895 [Fri Sep 25 17:53:46 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations 1896 [Fri Sep 25 17:53:47 2009] [notice] child pid 29774 exit signal Segmentation fault (11) 1897 [Fri Sep 25 17:53:47 2009] [notice] child pid 29775 exit signal Segmentation fault (11) 1898 [Fri Sep 25 17:53:47 2009] [notice] child pid 29776 exit signal Segmentation fault (11) 1899 [Fri Sep 25 17:53:47 2009] [notice] child pid 29777 exit signal Segmentation fault (11) 1900 [Fri Sep 25 17:53:47 2009] [notice] child pid 29778 exit signal Segmentation fault (11) 1901 [Fri Sep 25 17:53:47 2009] [notice] child pid 29779 exit signal Segmentation fault (11) fig. 2 C) Some more debug information from the shell; the mod_rewrite is turned on and this is the machine architecture 1 # apachectl -t -D DUMP_MODULES | more 2 Loaded Modules: 3 core_module (static) 4 ... 5 rewrite_module (shared) 1 # uname -a 2 Linux RegionalWeb 2.6.24-23-xen #1 SMP Mon Jan 26 03:09:12 UTC 2009 x86_64 x86_64 x86_64 GNU/Linux fig. 3 I looked into some previous posts (http://serverfault.com/questions/18744/htaccess-not-working-modrewrite), but didn't find a solution for this. I'm sure there's a small switch somewhere that I'm missing. Thanks in advance Tim

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• Subversion - Retrieval of mergeinfo unsupported

  - by jamesthomson

  Hi, I've recently updated my Subversion package on Debian Etch to 1.5.1 via a back-port. I've gone through what I believe are all the appropriate steps but cannot for the life of me get past the following error message when I try to merge: Retrieval of mergeinfo unsupported by '.' The '.' isn't important as I get the same message whether I'm SSH'd on to the server or using TortoiseSVN through Windows. I'll take you through what I did to upgrade and test step by step: Update of Subversion Added the following line to /etc/apt/sources.list: deb http://www.backports.org/debian etch-backports main contrib non-free and then ran apt-get -s -t etch-backports install subversion Checked the version of the subversion installation Done this by running svnadmin --version and got the following output: svnadmin, version 1.5.1 (r32289) compiled Dec 11 2008, 18:10:14 Checked the client too using svn --version and got the following svn, version 1.5.1 (r32289) compiled Dec 11 2008, 18:10:14 Ok, so all looking good so far. Now I just need to upgrade the repository. After plenty of research, the most foolproof way to do this seemed to be to dump the repository and then load it again. So here's what I did: svnadmin dump /var/svn/repo > repo.dump rm -aR /var/svn/repo/* svnadmin create /var/svn/repo svnadmin load < repo.dump All that seemed to work fine. I then checked to see if the repository had been upgraded by looking at the contents of /var/svn/repo/db/format which gave: 3 layout sharded 1000 Again this indicated a Subversion 1.5 repository so all looking good. Now I try and do a merge using the Subversion client in Debian: svn mergeinfo https://mysvn/repo . and I get the following error: svn: Retrieval of mergeinfo unsupported by '.' I get the same error message whether I'm using the Debian shell on the same server or if I'm connecting via TortoiseSVN and a Windows box. If I browse to the repository using my web browser, the version number at the bottom reads: Powered by Subversion version 1.4.2 (r22196). In case it helps, the created date on mod_dav_svn.so is 2009-08-06 18:29 I just cannot figure out why I'm getting this message so any help pointing me in the right direction would be greatly appreciated. All the forum and mailing list posts that I found relating to this error were solved by doing an svnadmin upgrade, though I have actually tried that and still no joy. Thanks in advance, James.

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• 403 Forbidden Error when trying to view localhost on Apache

  - by misbehavens

  I think my Apache must be all screwed up. I don't know if it ever worked. I just upgraded to Snow Leopard, and the first step on this tutorial is to start apache and check that it's working by opening http://localhost. It starts fine but when I go to localhost I get a 403 forbidden error. I don't know where to start figuring out how to fix it, so I wonder if a fresh install of Apache would do the trick. What do you think? Update: I found some error logs in /private/var/log/apache2/. Found this in one of the logs. Not sure what it means: [Tue Nov 10 17:53:08 2009] [notice] caught SIGTERM, shutting down [Tue Nov 10 21:49:17 2009] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] Warning: DocumentRoot [/usr/docs/dummy-host.example.com] does not exist Warning: DocumentRoot [/usr/docs/dummy-host2.example.com] does not exist httpd: Could not reliably determine the server's fully qualified domain name, using Andrews-Mac-Pro.local for ServerName mod_bonjour: Skipping user 'andrew' - cannot read index file '/Users/andrew/Sites/index.html'. [Tue Nov 10 21:49:19 2009] [notice] Digest: generating secret for digest authentication ... [Tue Nov 10 21:49:19 2009] [notice] Digest: done [Tue Nov 10 21:49:19 2009] [notice] Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8k DAV/2 PHP/5.3.0 configured -- resuming normal operations Update: I also found something in the dummy-host.example.com-error_log file. I didn't set these dummy-host things by the way. Is this the default configuration? [Tue Nov 10 21:59:57 2009] [error] [client ::1] client denied by server configuration: /usr/docs Update: Woohoo! I found the file that had the virtual host definitions. It was in /etc/apache2/extra/httpd-vhosts.conf. It had those two dummy virtual host settings in there. I added a localhost virtual host. Not sure if this is necessary, but since it wasn't working before, decided to do it anyway. After removing the old virtual hosts, adding my new localhost virtual host, and restarting apache, it seems to work. So I guess whenever I want to add a virtual host, I only need to add them to this file? Or is there a hosts file somewhere, like there is on Linux? Update: Yes, there is an /etc/hosts file that need to be changed to. Add the virtual host name to that file.

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• How can I play my MP3 files through my stereo system?

  - by Joel Coehoorn

  Here's the situation. Like many others I have my entire CD collection ripped to my PC, along side other music I've acquired through iTunes or Amazon MP3. Also like many others the speakers at my PC are underpowered, and likely included in my monitor as an afterthought. This is fine for most use: system sounds, YouTube, etc. Even games sounds and music. But I'd like something a little better for when I really want to listen to music. And I have it; in the next room — barely 25 feet away as the crow flies — sits a nice 400 watts stereo system. The stereo supports MP3 CDs, so up to this point I've just kept a few CD-RW disks around to keep most of my collection available. But it's time to move on to something a little more sophisticated. What are my options for using the MP3 files available on my computer as an input for this stereo? Some notes: I want to be able to control what song the stereo is playing without having to go to the PC, including setting up and retrieving playlists. Ideally this should even be able to wake the PC from sleep mode to start playing. I primarily use Windows Media Player on the PC (which runs Windows Vista). However, the files themselves live on a server running Windows Server 2008, and so I could also install something on the server and run everything from there. The axillary input on the stereo is unfortunately limited to a 1/8 inch stereo mini-plug. I'm loath to run wires across two rooms, and I'm considering moving the stereo to the garage at some point. Therefore a wireless solution that can easily cover about 100 ft or so is preferred. I already have a Wi-Fi network ready, but it's secured so anything using Wi-Fi should make it easy to set up security. Bonus points for doing it in under $85 shipped at Amazon (I'm hoping to pay for this via $85 worth of Amazon gift cards). I know this a pretty tight budget, so just getting close is okay. Bonus points for something that remembers multiple profiles (keep my favorite songs separate from the wife's). Bonus points for a remote that can also replace my stereo remote, so I only need one device to control everything. I'm not holding my breath on this one given my price range, though. Bonus points if I can also use for Internet radio. Doing some research on my own as well. This looks like it'll do exactly what I want, but it lists at an outrageous $299: http://www.linksysbycisco.com/US/en/products/DMP100

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• X:\ is not accessible. Insufficient system resources exist to complete the requested service. Help [

  - by Katherine

  I keeping getting the error message from above on multiple computers that I administer. I wasn't sure if I should be posting this on SuperUser or ServerFault so my apologizes if it should go there... Basically, I have at least 5 computers of varying ages (some fresh out of the box!) throwing the above error. X:\ is one of our network drives that is mapped for users. Most of the time if you shut down the biggest application it will fix the problem, but it's becoming an increasing issue, and I can't keep running around fixing it manually. I have tried to do some research, but most of it just states the obvious without supplying a permanent fix. The machines are all running Win XP SP3, with at least 2gb of ram. Sorry for the delay in getting back to people... a lot of good questions. To respond back to people... It is a windows 2003 server that houses the file share. We have about 175 users, however i cannot state how many are actually accessing the information at a single moment. Considering that this is our largest file share, I would say that probably at least 100+. The files we work with are large, but not that big considering that we do a lot of graphical and video work. ~50mb. That being said, this is error occurs simply when trying to gain access to the server itself, not actual files. When I say close a program, I mean that it can be any program. It doesn't matter which program. It varies from machine to machine, and from day to day. Some days it is Firefox, some days it is Outlook, some days it is Excel. There doesn't seem to be a common bond behind which application could be causing the problem. Thank you for the articles, and the recommendation on paging files. I will have to look into that. None of our computers are set to hibernate, so I am going to rule that out.

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• Having troubles connectiong Magento to external Windows Database Server using Windows Azure

  - by Kevin H

  "I tried to make this easy to read through" I am using Ubuntu 12.04 LTS for Magento and installed these commands onto the system: sudo apt-get install apache2 sudo apt-get install php5 libapache2-mod-php5 sudo apt-get install php5-mysql sudo apt-get install php5-curl php5-mcrypt php5-gd php5-common sudo apt-get install php5-gd I used Windows Server 2008 R2 August 2012 for Mysql Server For a reference, I used http://www.windowsazure.com/en-us/manage/windows/common-tasks/install-mysql/ When the server was setup, I added an empty disk to it Then, I added endpoints 3306 Next I accessed the server remotely After that, I formatted the empty disk and was inserted as F: Next I downloaded Mysql from http://*.mysql.com version Windows (x86, 64-bit), MSI Installer 5.5.28 In the installation process, I used these settings: Typical Setup - Clicked Next, install, next Chose Detailed Configuration - Clicked next Chose Dedicated MySQL Server Machine - Clicked Next Chose Transactional Database Only - Clicked Next Chose the "F:" Drive - Clicked Next Chose Online Transactional Processing (OLTP) - Clicked Next For Networking Options, I checkmarked 'Enable TCP/IP Networking" 'Add firewall exception for this port' 'Enable Strict Mode' - Clicked Next Chose Standard Character Set - Clicked Next For Windows Options, I checkedmarked 'Install as Window Service" 'Launch the MySQL Server automatically' 'Include Bin Directory in Windows PATH - Clicked Next For Security Options, I checkmarked 'Modify Security Settings' and set root password - Clicked Next Finally clicked Execute and Finish These are the Firewall Setting that I set I clicked inbound rules Properties Scope Allow IP Address and used the internal Address for Magento Server Clicked Apply and exited Next, I opened up MySQL 5.x Command Line Client Entered Root Password Then entered these commands mysql create database magento; mysql Create user magentouser identified by 'password'; mysql Grant select, insert, create, alter, update, delete, lock tables on magento.* to magentouser mysql exit Finally, I opened up the Magento Downloader Magento validation has approved all PHP version is right. Your version is 5.3.10-1ubuntu3.4. PHP Extension curl is loaded PHP Extension dom is loaded PHP Extension gd is loaded PHP Extension hash is loaded PHP Extension iconv is loaded PHP Extension mcrypt is loaded PHP Extension pcre is loaded PHP Extension pdo is loaded PHP Extension pdo_mysql is loaded PHP Extension simplexml is loaded These are all installed on Magento Server For the Database Connection, I used: The Database server only has MySQL 5.5 Server installed on it Host - Internal IP address User Name - The User I created when setting up database Password - The Password I created when setting up database For the password, I did some research and found out that Magento only accepts alphanumeric, so I went and set it up again and used only alphanumeric for the User password Now, I am still getting Accessed denied for database Connection. Also, I have tryed to setup mysql on independant Linux Server but kept getting errors. When, I found the solution. Wouldn't work, so I decided to try Windows. These is the questions, I have been asking and researching to debug this issue Is it because I am using Linux for magento and Windows for Database. I have had no luck in finding a reason why this wouldn't work There must be something, I am missing I also researched the difference between linux sql databases and windows sql databases but have not come to conclusion, if installing Mysql on windows would make a difference in syntax and coding. I have spent a lot of time looking into this and need some help with direction on how to complete my project. Any type of help would be appreciated.

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• Areca 1280ml RAID6 volume set failed

  - by Richard

  Today we hit some kind of worst case scenario and are open to any kind of good ideas. Here is our problem: We are using several dedicated storage servers to host our virtual machines. Before I continue, here are the specs: Dedicated Server Machine Areca 1280ml RAID controller, Firmware 1.49 12x Samsung 1TB HDDs We configured one RAID6-set with 10 discs that contains one logical volume. We have two hot spares in the system. Today one HDD failed. This happens from time to time, so we replaced it. Upon rebuilding a second disc failed. Normally this is no fun. We stopped heavy IO-operations to ensure a stable RAID rebuild. Sadly the hot-spare disc failed while rebuilding and the whole thing stopped. Now we have the following situation: The controller says that the raid set is rebuilding The controller says that the volume failed It is a RAID 6 system and two discs failed, so the data has to be intact, but we cannot bring the volume online again to access the data. While searching we found the following leads. I don't know whether they are good or bad: Mirroring all the discs to a second set of drives. So we would have the possibility to try different things without loosing more than we already have. Trying to rebuild the array in R-Studio. But we have no real experience with the software. Pulling all drives, rebooting the system, changing into the areca controller bios, reinserting the HDDs one-by-one. Some people are saying that the brought the system online by this. Some are saying that the effect is zero. Some say, that they blew the whole thing. Using undocumented areca commands like "rescue" or "LeVel2ReScUe". Contacting a computer forensics service. But whoa... primary estimates by phone exceeded 20.000€. That's why we would kindly ask for help. Maybe we are missing the obvious? And yes of course, we have backups. But some systems lost one week of data, thats why we'd like to get the system up and running again. Any help, suggestions and questions are more than welcome.

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• Apache2 graceful restart stops proxying requests to passenger

  - by Rob

  Issue with apache mod proxy, it stops proxying requests after a graceful restart but not all the time. It seems to happen only on a Sunday when a graceful restart is triggered by logrotate. [Sun Sep 9 05:25:06 2012] [notice] SIGUSR1 received. Doing graceful restart [Sun Sep 9 05:25:06 2012] [notice] Apache/2.2.22 (Ubuntu) Phusion_Passenger/3.0.11 configured -- resuming normal operations [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(492) failed in child 26153 for worker proxy:reverse [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(486) failed in child 26153 for worker http://api.myservice.org/api [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(487) failed in child 26153 for worker http://api.myservice.org/editor/$1 [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(489) failed in child 26153 for worker http://api.myservice.org/build [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(490) failed in child 26153 for worker http://api.myservice.org/help [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(491) failed in child 26153 for worker http://api.myservice.org/motd.html [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(480) failed in child 26153 for worker http://api.myservice.org/api [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(481) failed in child 26153 for worker http://api.myservice.org/editor/$1 [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(483) failed in child 26153 for worker http://api.myservice.org/build [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(484) failed in child 26153 for worker http://api.myservice.org/help [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(485) failed in child 26153 for worker http://api.myservice.org/motd.html [Sun Sep 9 05:25:06 2012] [error] proxy: ap_get_scoreboard_lb(479) failed in child 26153 for worker http://api.myservice.org/motd.html After these lines, the logs are flooded with 404's because the requests are not being proxied. It's worth noting that the destination is just another vhost on the same apache instance, but the vhost (http://api.myservice.org) is serving passenger (mod_rails) I was thinking that maybe there's some startup issues with the passenger workers not being ready during a graceful restart? After a full restart resolves it and everything returns to normal. //Edit Here's the vhost config, thanks :) <VirtualHost *:80> UseCanonicalName Off LogFormat "%V %h %l %u %t \"%r\" %s %b" vcommon <Directory /var/www/vhosts> RewriteEngine on AllowOverride All </Directory> RewriteEngine on RewriteCond /var/www/vhosts/%{SERVER_NAME} !-d RewriteCond /var/www/vhosts/%{SERVER_NAME} !-l RewriteRule ^ http://sitenotfound.myservice.org/ [R=302,L] VirtualDocumentRoot /var/www/vhosts/%0/current # Rewrite requests to /assets to map to the /var/file-store/<SERVER_NAME>/ RewriteMap lowercase int:tolower RewriteCond %{REQUEST_URI} ^/assets/ RewriteRule ^/assets/(.*)$ /var/file-store/${lowercase:%{SERVER_NAME}}/$1 # Map /login to /editor.html as it's far friendlier. RewriteCond %{REQUEST_URI} ^/login RewriteRule .* /editor.html [PT] # Forward some requests to the API ProxyPass /api http://api.myservice.org/api ProxyPass /site.json http://api.myservice.org/api/editor/site ProxyPassMatch ^/editor/(.*)$ http://api.myservice.org/editor/$1 ProxyPassMatch ^/api/(.*) http://api.myservice.org/api/$1 ProxyPass /build http://api.myservice.org/build ProxyPass /help http://api.myservice.org/help ProxyPass /motd.html http://api.myservice.org/motd.html <Proxy *> Order allow,deny Allow from all </Proxy> # TODO generate slightly more specific Error Documents for 401/403/500's, # but for now the 404 page is good enough ErrorDocument 401 /404.html ErrorDocument 403 /404.html ErrorDocument 404 /404.html ErrorDocument 500 /404.html </VirtualHost>

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• Perl missing while installing nginx on centos

  - by Ahoura Ghotbi

  I am trying to install nginx on my server, however it keeps returning "./configure: error: perl 5.6.1 or higher is required" eventhough I have perl v5.8.8!!!! I have already downloaded perl and trying to configure it using the following command : ./configure --with-http_stub_status_module --with-http_perl_module --with-http_flv_module --add-module=nginx_mod_h264_streaming here is the output : [root@fst nginx-0.8.55]# ./configure --with-http_stub_status_module --with-http_perl_module --with-http_flv_module --add-module=nginx_mod_h264_streaming checking for OS + Linux 2.6.18-308.el5 x86_64 checking for C compiler ... found + using GNU C compiler + gcc version: 4.1.2 20080704 (Red Hat 4.1.2-52) checking for gcc -pipe switch ... found checking for gcc builtin atomic operations ... found checking for C99 variadic macros ... found checking for gcc variadic macros ... found checking for unistd.h ... found checking for inttypes.h ... found checking for limits.h ... found checking for sys/filio.h ... not found checking for sys/param.h ... found checking for sys/mount.h ... found checking for sys/statvfs.h ... found checking for crypt.h ... found checking for Linux specific features checking for epoll ... found checking for sendfile() ... found checking for sendfile64() ... found checking for sys/prctl.h ... found checking for prctl(PR_SET_DUMPABLE) ... found checking for sched_setaffinity() ... found checking for crypt_r() ... found checking for sys/vfs.h ... found checking for nobody group ... found checking for poll() ... found checking for /dev/poll ... not found checking for kqueue ... not found checking for crypt() ... not found checking for crypt() in libcrypt ... found checking for F_READAHEAD ... not found checking for posix_fadvise() ... found checking for O_DIRECT ... found checking for F_NOCACHE ... not found checking for directio() ... not found checking for statfs() ... found checking for statvfs() ... found checking for dlopen() ... not found checking for dlopen() in libdl ... found checking for sched_yield() ... found checking for SO_SETFIB ... not found configuring additional modules adding module in nginx_mod_h264_streaming + ngx_http_h264_streaming_module was configured checking for PCRE library ... found checking for system md library ... not found checking for system md5 library ... not found checking for OpenSSL md5 crypto library ... found checking for zlib library ... found checking for perl + perl version: v5.8.8 built for x86_64-linux-thread-multi ./configure: error: perl 5.6.1 or higher is required

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• What are the pros and cons of AWS Elastic Beanstalk compared with other deployment strategies?

  - by James van Dyke

  I'm pretty new to the whole Netflix OSS stack and deployments in general. As a background for my current level of knowledge ops-wise, my main role is as a front-end application engineer. However, I enjoy the operations side of things, so I'm attempting to setup a new deployment strategy and the tooling for a new project. Our Goals Super easy deploys (we want to push a button to update production) Automated deploys to test environments (using Jenkins) Ease of maintenance (we have an app to write, don't want to spend our time fiddling with production issues) Ability to handle a service oriented architecture (many small apps, various languages and data stores) Enough flexibility to ensure we won't have to change strategies any time soon (we're already trying to get away from RightScale) We're OK with a little more initial setup time if doing so will save us some headaches in the future. So, along these lines, I've been listening to podcasts, watching Ops talks, and reading tons of blog posts and based on our goals and what I've taken to be some forming best practices, we've started forming a plan using Asgard, rolling our package into a jar and rolling that into an AMI. We had this all planned out and like the advantages the process versus using a Chef server and converging instances on the fly (we felt this was error prone given our limited timeline and lack of understanding around a Chef server workflow). However, a coworker did a little looking around on his own and felt like Elastic Beanstalk met our needs. I've looked into it and spun up a test environment with a WAR file and an attached RDS database. Things seem to work and I believe that we can automate deploys to a testing environment using Jenkins via the AWS API. Seems simple enough... perhaps too simple. What I'm wondering is, what's the catch? If Elastic Beanstalk is so simple and effective, why isn't it talked about more? I'm having a hard time finding enough objective opinions and facts about the two different deployment strategies, so I thought I'd ask around. Do you use Elastic Beanstalk? If so, why and what factors lead to that decision? What do you like and dislike? If you don't use Elastic Beanstalk but considered it, what do you use and why didn't you use Elastic Beanstalk? What are the advantages and disadvantages to a Elastic Beanstalk based deployment strategy for an SOA? That is, will Elastic Beanstalk work well with many small applications that rely on each other to work?

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• Postfix: How to apply header_checks only for specific Domains?

  - by Lukas

  Basically what I want to do is rewriting the From: Header, using header_checks, but only if the mail goes to a certain domain. The problem with header_check is, that I can't check for a combination of To: and From: Headers. Now I was wondering if it was possible to use the header_checks in combination with smtpd_restriction_classes or something similar. I've found a lot information about header_checks and multiple header fields, when searching the net. All of them basically telling me, that one can't combine two header for checking. But I didn't find any information if it was possible to only do a header check if a condition (eg. mail goes to example.com) was met. Edit: While doing some more Research I've found the following article which suggests to add a Service in postfix master.cf, use a transportmap to pass mails for the Domain to that service and have a separate header_check defined with -o. The thing is that I can't get it to work... What I did so far is adding the Service to the master.cf: example unix - - n - - smtpd -o header_checks=regexp:/etc/postfix/check_headers_example Adding the followin Line to the transportmap: example.com example: Last but not least I have two regexp-files for header checks, one for the newly added service, and one to redirect answers to the rewritten domain. check_headers_example: /From:(.*)@mydomain.ain>(.*)/ REPLACE From:[email protected]>$2 Obviously if someone answers, the mail would go to nirvana, so I have the following check_headers defined in the main postfix process: /To:(.*)<(.*)@mydomain.example.com>(.*)/ REDIRECT [email protected]$2 Somehow the Transport is ignored. Any help is appreciated. Edit 2: I'm still stuck... I did try the following: smtpd_restriction_classes = header_rewrite header_rewrite = regexp:/etc/postfix/rewrite_headers_domain smtpd_recipient_restrictions = (some checks) check_recipient_access hash:/etc/postfix/rewrite_table, (more checks) In the rewrite_table the following entries exist: /From:(.*)@mydomain.ain>(.*)/ REPLACE From:[email protected]>$2 All it gets me is a NOQUEUE: reject: 451 4.3.5 Server configuration error. I couldn't find any resources on how you would do that but some people saying it wasn't possible. Edit 3: The reason I asked this question was, that we have a customer (lets say customer.com) who uses some aliases that will forward mail to a domain, let's say example.com. The mailserver at example.com does not accept any mail from an external server that come from a sender @example.com. So all mails that are written from example.com to [email protected] will be rejected in the end. An exception on example.com's mailserver is not possible. We didn't really solve this problem, but will try to work around it by using lists (mailman) instead of aliases. This is not really nice though, nor a real solution. I'd appreciate all suggestions how this could be done in a proper way.

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• Why MySQL sat for 2 minutes doing nothing?

  - by Alex R

  This was a one-time thing, not reproducible... But I saved the show innodb status output. Can anybody tell what's going on here? The simple insert took almost 3 minutes to complete. | InnoDB | | ===================================== 110201 15:58:10 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 34 seconds ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 11963, signal count 11766 --Thread 1824 has waited at .\btr\btr0cur.c line 443 for 118.00 seconds the sema phore: S-lock on RW-latch at 09D6453C created in file .\buf\buf0buf.c line 550 a writer (thread id 1824) has reserved it in mode wait exclusive number of readers 1, waiters flag 1 Last time read locked in file .\buf\buf0flu.c line 599 Last time write locked in file .\btr\btr0cur.c line 443 Mutex spin waits 0, rounds 527817, OS waits 7133 RW-shared spins 2532, OS waits 1226; RW-excl spins 1652, OS waits 1118 ------------ TRANSACTIONS ------------ Trx id counter 0 95830 Purge done for trx's n:o < 0 95814 undo n:o < 0 0 History list length 11 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 0 0, not started, OS thread id 3704 MySQL thread id 551, query id 2702112 localhost 127.0.0.1 root show innodb status ---TRANSACTION 0 95829, not started, OS thread id 3132 MySQL thread id 534, query id 2702020 localhost 127.0.0.1 root ---TRANSACTION 0 95828, not started, OS thread id 3152 MySQL thread id 527, query id 2701973 localhost 127.0.0.1 root ---TRANSACTION 0 95827, ACTIVE 118 sec, OS thread id 1824 inserting, thread decl ared inside InnoDB 500 mysql tables in use 1, locked 1 1 lock struct(s), heap size 320, 0 row lock(s) MySQL thread id 526, query id 2701972 localhost 127.0.0.1 root update INSERT INTO log_searchcriteria (userid,search_criteria,date,search_type) VALUES ( NAME_CONST('userid',NULL), NAME_CONST('search_criteria',_latin1' SELECT SQL_C ALC_FOUND_ROWS idx_search.CTCX_LATITUDE, idx_search.CTCX_LONGITUDE, idx_search.b uilding_id, idx_search.LN_LIST_NUMBER, idx_search.LP_LIST_PRICE, idx_search.HSN_ ADRESS_HOUSE_NUMBER, idx_search.STR_ADDRESS_STREET, idx_search.CP_ADDRESS_COMPAS S_POINT, idx_search.UN_UNIT, idx_search.CIT_CITY, idx_search.ZP_ZIP_CODE, idx_se arch.AR_AREA_NAME, idx_search.BR_BEDROOMS, idx_search.BTH_BATHS, idx_search.ST_S TATUS, idx_search.CTCX_STYLE_TYPE, idx_s -------- FILE I/O -------- I/O thread 0 state: wait Windows aio (insert buffer thread) I/O thread 1 state: wait Windows aio (log thread) I/O thread 2 state: wait Windows aio (read thread) I/O thread 3 state: wait Windows aio (write thread) Pending normal aio reads: 0, aio writes: 1, ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0 Pending flushes (fsync) log: 0; buffer pool: 0 151006 OS file reads, 120758 OS file writes, 6844 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 5, seg size 7, 24664 inserts, 24664 merged recs, 4612 merges Hash table size 553253, node heap has 629 buffer(s) 0.00 hash searches/s, 0.00 non-hash searches/s --- LOG --- Log sequence number 5 2318193115 Log flushed up to 5 2318193115 Last checkpoint at 5 2318129891 0 pending log writes, 0 pending chkp writes 3036 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total memory allocated 213459462; in additional pool allocated 1720192 Dictionary memory allocated 240416 Buffer pool size 8192 Free buffers 0 Database pages 7563 Modified db pages 18 Pending reads 0 Pending writes: LRU 0, flush list 18, single page 0 Pages read 150973, created 28788, written 115137 0.00 reads/s, 0.00 creates/s, 0.00 writes/s No buffer pool page gets since the last printout -------------- ROW OPERATIONS -------------- 1 queries inside InnoDB, 0 queries in queue 1 read views open inside InnoDB Main thread id 2992, state: flushing buffer pool pages Number of rows inserted 794294, updated 89203, deleted 13698, read 1453084305 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================ Thanks

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• Updating the $PATH for running an command through SSH with LDAP user account

  - by Guillaume Bodi

  Hi all, I am setting up a Mac OSX 1.6 server to host Git repositories. As such we need to push commits to the server through SSH. The server has only an admin account and uses a user list from a LDAP server. Now, since it is accessing the server through a non interactive shell, git operations are not able to complete since git executables are not in the default path. As the users are network users, they do not have a local home folder. So I cannot use a ~/.bashrc and the like solution. I browsed over several articles here and there but could not get it working in a nice and clean setup. Here are the infos on the methods I gathered so far: I could update the default PATH environment to include the git executables folder. However, I could not manage to do it successfully. Updating /etc/paths didn't change anything and since it's not an interactive shell, /etc/profile and /etc/bashrc are ignored. From the ssh manpage, I read that a BASH_ENV variable can be set to get an optional script to be executed. However I cannot figure how to set it system wide on the server. If it needs to be set up on the client machine, this is not an acceptable solution. If someone has some info on how it is supposed to be done, please, by all means! I can fix this problem by creating a .bashrc with PATH correction in the system root (since all network users would start here as they do not have home). But it just feels wrong. Additionally, if we do create a home folder for an user, then the git command would fail again. I can install a third party application to set up hooks on the login and then run a script creating a home directory with the necessary path corrections. This smells like a backyard tinkering and duct tape solution. I can install a small script on the server and ForceCommand the sshd to this script on login. This script will then look for a command to execute ($SSH_ORIGINAL_COMMAND) and trigger a login shell to run this command, or just trigger a regular login shell for an interactive session. The full details of this method can be found here: http://marc.info/?l=git&m=121378876831164 The last one is the best method I found so far. Any suggestions on how to deal with this properly?

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• Wiimote accelerometer input on Windows? (in 2013 - Glovepie alternative?)

  - by user568458

  There were a few options for getting accelerometer input into Windows using a Nintendo Wiimote. As of mid 2013, these projects seem to be dead, corrupted with malware, or both. Are there any tools out there that can do this that are still available (and not full of malware)? Quick roundup of the options that used to exist, or that still exist but aren't suitable: Glovepie, which used to be the most recommended option, appears to be dead: it's own website hacked, its creator's googlepages page full of strange stuff that sounds like hacker-humour about the end of the world... (I'd rather not link to them, very dubious stuff...), and lots of forum threads asking if it's a dead project with comments along the lines of "I heard that the author intends to return to it" dated 2011... Wiiuse seems to be dead: its sourceforge page simply says "Error.", its own website has turned into a squatter page. There apparently was an extension for Autohotkey that allowed Wiimote input, but I've seen warnings that this too is now full of malware (see final commentin above link) Everything else I can find about using Wiimotes as input on Windows - for example, Johnny Lee Cheng's work - seems to be exclusively about using infrared or sensor bar, or tied to a specific purpose (e.g. FPS gaming). My main interest is in the accelerometer, and buttons if possible (although something that supports the IR stuff too would be ideal). Is there anything that works for getting Wiimote accelerometer input into Windows that is reliable and not a malware-fest? If anyone's interested in "Why?", it's to use the Wiimote as an audio / midi controller: to use movement, pitch, roll etc to modulate lots of different sound variables at once with one hand. Wiimotes are great for this, and Glovepie used to be the standard way to make this work (e.g. see for example this tutorial, and this one, ignore the unrelated video; I've also seen musicians using wiimote/glovepie setups at gigs, creating some really unique sounds). As of 2013, however, Glovepie seems to be a dead and thoroughly hacked project, sadly. Is there anything else? With or without MotionPlus is fine (with would be better). If anyone knows of any worthy alternatives to Wiimotes in terms of price and quality that can be made to work with a PC, that would also be great: but in my research I coulnd't find any (here's a link to someone reaching the same conclusion). found some potentially relevant stuff here, not had time to test any of it yet though - http://stackoverflow.com/questions/2984450/using-accelerometer-in-wiimote-for-physics-practicals

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• Ubuntu: Multiple NICs, one used only for Wake-On-LAN

  - by jcwx86

  This is similar to some other questions, but I have a specific need which is not covered in the other questions. I have an Ubuntu server (11.10) with two NICs. One is built into the motherboard and the other is a PCI express card. I want to have my server connected to the internet via my NAT router and also have it able to wake from suspend using a Magic Packet (henceforth referred to as Wake-On-LAN, WOL). I can't do this with just one of the NICs because each has an issue - the built-in NIC will crash the system if it is placed under heavy load (typically downloading data), whilst the PCI express NIC will crash the system if it is used for WOL. I have spent some time investigating these individual problems, to no avail. My plan is thus: use the built-in NIC solely for WOL, and use the PCI express card for all other network communication except WOL. Since I send the WOL Magic Packet to a specific MAC address, there is no danger of hitting the wrong NIC, but there is a danger of using the built-in NIC for general network access, overloading it and crashing the system. Both NICs are wired to the same LAN with address space 192.168.0.0/24. The built-in ethernet card is set to have interface name eth1 and the PCI express card is eth0 in Ubuntu's udev persistent rules (so they stay the same upon reboot). I have been trying to set this up with the /etc/network/interfaces file. Here is where I am currently: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.0.3 netmask 255.255.255.0 network 192.168.0.0 broadcast 192.168.0.255 gateway 192.168.0.1 auto eth1 iface eth1 inet static address 192.168.0.254 netmask 255.255.255.0 I think by not specifying a gateway for eth1, I prevent it being used for outgoing requests. I don't mind if it can be reached on 192.168.0.254 on the LAN, i.e. via SSH -- it's IP is irrelevant to WOL, which is based on MAC addresses -- I just don't want it to be used to access internet resources. My kernel routing table (from route -n) is Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 My question is this: Is this sufficient for what I want to achieve? My research has thrown up the idea of using static routing to specify that eth1 should only be used for WOL on the local network, but I'm not sure this is necessary. I have been monitoring the activity of the interfaces using iptraf and it seems like eth0 takes the vast majority of the packets, though I am not sure that this will be consistent based on my configuration. Given that if I mess up the configuration, my system will likely crash, it is important to me to have this set up correctly!

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• 500 Internal Server Error when setting up Apache on Ubuntu+Django

  - by ApacheQ

  I tried with Apache on ubuntu 9.04 and get the same error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. And my apache/error.log is: [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] ServerName: 'sapint2' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] DocumentRoot: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] URI: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Location: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Directory: None [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Filename: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] PathInfo: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Traceback (most recent call last): [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch\n default=default_handler, arg=req, silent=hlist.silent) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1229, in _process_target\n result = _execute_target(config, req, object, arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1128, in _execute_target\n result = object(arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 180, in handler\n return ModPythonHandler()(req) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 142, in call\n self.load_middleware() [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 45, in load_middleware\n mod = import_module(mw_module) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module\n import(name) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/contrib/sessions/middleware.py", line 4, in \n from django.utils.cache import patch_vary_headers [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/cache.py", line 25, in \n from django.core.cache import get_cache [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 187, in \n cache = get_cache(DEFAULT_CACHE_ALIAS) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 179, in get_cache\n cache = backend_cls(location, params) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/backends/memcached.py", line 139, in init\n "Memcached cache backend requires either the 'memcache' or 'cmemcache' library" [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] InvalidCacheBackendError: Memcached cache backend requires either the 'memcache' or 'cmemcache' library [Sat Oct 06 09:51:30 2012] [notice] caught SIGTERM, shutting down [Sat Oct 06 09:51:31 2012] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads. [Sat Oct 06 09:51:31 2012] [notice] mod_python: using mutex_directory /tmp [Sat Oct 06 09:51:31 2012] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.5-1ubuntu7.11 with Suhosin-Patch mod_python/3.3.1 Python/2.7.1+ mod_wsgi/3.3 configured -- resuming normal operations I need some help Thanks

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• server 2008 r2 - wbadmin systemstatebackup - system writer not found in the backup

  - by TWood

  I am trying to manually run a systemstatebackup command on my server 2008 r2 box and I am getting an error code '2155347997' when I view the backup event log details. The command line tells me that I have log files written to the c:\windows\logs\windowsserverbackup\ path but I have no files of the .log type there. My command window tells me "System Writer is not found in the backup". However when I run vssadmin list writers I find System Writer in the list and it shows normal status with no last errors stored. I am running this from an elevated command prompt as well as from a logged on administrator account. My backup target path has permission for network service to have full control and it has plenty of free space. Looking in eventlog I have two VSS error 8194 that happen immediately before the Backup error 517 which has the errorcode 2155347997 listed. All three of these errors are a result of trying to run the command for the systemstatebackup. It's my belief that some VSS related permission is failing and exiting the backup process before it ever gets started. Because of this the initial code that creates the log files must not be running and this is why I have no files. When running the systemstatebackup command from the command prompt and watching the windowsserverbackup directory I do see that I have a Wbadmin.0.etl file which gets created but it is deleted when the backup errors out and stops. I have looked online and there are numerous opinions as to the cause of this error. These are the things I have corrected to try and fix this issue before posting here: Machine runs a HP 1410i smart array controller but at one time also used a LSI scsi card. Used networkadminkb.com's kb# a467 to find one LSI_SCSI entry in HKLMSysCurrentControlSetServices which start was set to 0x0 and I modified to 0x3. No changes. In HKLMSystemCurrentControlSetServicesVSSDiag I gave network service full control where it previously only had "Special Permission". No changes. I followed KB2009272 to manually try to fix system writer. These are all of the things I have tried. What else should I look at to resolve this issue? It may be important to note that I run Mozy Pro on this server and that was known in the past to use VSS for copying operations and it occasionally threw an error. However since an update last year those error event log entries have stopped.

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• PHP at the root directory using Ngnix on Linode and Ubuntu 12.04

  - by Steve Kinney

  I originally set up my Linode to use it with the Sinatra applications using Phusion Passenger that I was developing and I have it working great for that. However, as time goes on, I find myself needing just a wee bit of PHP to do a server-side thing here or there. My basic set up was based off of this Linode recipe (I copied and pasted the parts that I needed—I did not install Redis and Node). If I go to http://scholarsnyc.com/index.php everything works great. If I just go the base URL however, I get a 403 Forbidden error (I have a vanilla HTML page there for now). I've played with file permissions and the same file will work if I call it directly. I've done my homework and nothing I try seems to work. I'm sure there is an obvious error. I'm also sure that there are some rookie mistakes in my Nginx configuration (some of those mistakes are the artifacts of trying different fixes from my research. user www-data www-data; worker_processes 1; events { worker_connections 1024; } upstream php { server 127.0.0.1:9001; } http { passenger_root /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.12; passenger_ruby /usr/local/bin/ruby; include mime.types; default_type application/octet-stream; index index.php index.html index.htm; sendfile on; keepalive_timeout 65; server { server_name localhost scholarsnyc.com www.scholarsnyc.com; root /srv/www/scholarsnyc.com/public; location / { index index.php; } location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } } server { server_name data.scholarsnyc.com; root /srv/www/data.scholarsnyc.com/public; passenger_enabled on; } server { server_name tech.scholarsnyc.com; root /srv/www/tech.scholarsnyc.com/public; location / { root /srv/www/tech.scholarsnyc.com/public; index index.php index.html index.htm; } } } Any other optimizations are also appreciated. I literally don't know what to do at this point.

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• Microsoft Office 2003 document (Excel and Word) intermitently, takes 30 seconds to load

  - by Julio Nobre

  I am trying to figure out why a simple .XLS EXCEL workbook is taking, randomly, 30 seconds to open. Before answering: Please, bear mind the following: Problem symptoms Hanging is intermitent and it takes exactly 30 seconds; During hanging there is no cpu or disk activity; It only happens during document load. Every runs smooth after that; Windows Explorer.exe hangs on folder, but all other folders, system and applications are still responsive; There are no consecutive hangings. I have to wait for while to reproduce this behaviour; All samples documents are located on a local drive (C:\BPI); The no document has has macros and have any addins usage; The problem does occurs on others files extensions like .PDF, for example; Office 2003 is being used for several years; The computer is running Windows XP; Computer has several network mapped drives, all addressed to main file server; Recently, main fileserver was replaced by Windows 2011 SBS Standard Edition What I have done so far I have traced machine Explorer.exe, using Process Monitor, added Duration column, and filtered by Duration 1. That's is how I found that hanging was taking exactly 30 seconds. For further information, please refer to Oliver Salzburg tutorial. Using Process Monitor, I have also figured out than five operations were taking most of sample collecting duration. Looking at sample image below, column Operation below you will notice that one single operation was taking 29 seconds; I have tried different documents (.xls and .doc), all of them smaller than 30 KB; I have, temporarily, removed all shortcuts on User Document's folder that were pointing to network drives or shares; I have runned CCleaner to fix registry issues; I made sure that there were no external links on tested workbook or word documents; I have reproduced this behaviour for hours; I have extensivelly researched for hours on the web; Process Monitor's collected and filtered data

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• Windows DHCP Server - get notification when a non-AD joined device gets an IP address

  - by TheCleaner

  SCENARIO To simplify this down to it's easiest example: I have a Windows 2008 R2 standard DC with the DHCP server role. It hands out IPs via various IPv4 scopes, no problem there. WHAT I'D LIKE I would like a way to create a notification/eventlog entry/similar whenever a device gets a DHCP address lease and that device IS NOT a domain joined computer in Active Directory. It doesn't matter to me whether it is custom Powershell, etc. Bottom line = I'd like a way to know when non-domain devices are on the network without using 802.1X at the moment. I know this won't account for static IP devices. I do have monitoring software that will scan the network and find devices, but it isn't quite this granular in detail. RESEARCH DONE/OPTIONS CONSIDERED I don't see any such possibilities with the built in logging. Yes, I'm aware of 802.1X and have the ability to implement it long-term at this location but we are some time away from a project like that, and while that would solve network authentication issues, this is still helpful to me outside of 802.1X goals. I've looked around for some script bits, etc. that might prove useful but the things I'm finding lead me to believe that my google-fu is failing me at the moment. I believe the below logic is sound (assuming there isn't some existing solution): Device receives DHCP address Event log entry is recorded (event ID 10 in the DHCP audit log should work (since a new lease is what I'd be most interested in, not renewals): http://technet.microsoft.com/en-us/library/dd759178.aspx) At this point a script of some kind would probably have to take over for the remaining "STEPS" below. Somehow query this DHCP log for these event ID 10's (I would love push, but I'm guessing pull is the only recourse here) Parse the query for the name of the device being assigned the new lease Query AD for the device's name IF not found in AD, send a notification email If anyone has any ideas on how to properly do this, I'd really appreciate it. I'm not looking for a "gimme the codez" but would love to know if there are alternatives to the above list or if I'm not thinking clear and another method exists for gathering this information. If you have code snippets/PS commands you'd like to share to help accomplish this, all the better.

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• Why does unpartitioned Hitachi HDS5C3020 drive start consuming 50% more power 15 minutes after boot?

  - by Pro Backup

  In a Debian 6.0.6 system there are 74 pieces of 2TB Toshiba DT01ABA200 drives. These drives are identified as Hitachi HDS5C3020BLE630 drives running firmware revision MZ4OAAB0. 64 Drives attached via HP SAS expander cards to an LSI 2008 SAS controller, another 5 drives are connected directly to the mainboard, 4 drives are connected to a Sil based PCI controller and last 1 drive is only powered and has no data cable connected. The controller LSI and Sil card's their onboard BIOS are both disabled and the mpt2sas and sata_sil modules are removed from the Linux debian 2.6.32-5-amd64 #1 SMP Sun Sep 23 10:07:46 UTC 2012 x86_64 GNU/Linux kernel. The mpt2sas module is loaded after boot using a modprobe command in /etc/rc.local. These 74 drives are not partitioned, neither formatted and also not mounted. The system consumes: with 0 drives: 70.6 - 70.9 Watt (also 15 minutes after boot); with 74 drives: 330 - 360 Watt, just after boot (is equivalent to 3.5 - 3.9W per drive in idle state); with 74 drives: 420 - 466 Watt, each time in the 15th minute of uptime (is equivalent to 4.7 - 5.3W per drive in idle state). The drive specification lists 4.7W as read/write, and 3.3W as idle power consumption. The increased power consumption is most likely on the 5V line, because after roughly 1 minute an "over current protection" (OCP) of the power supply (PSU) shuts down the power. The used PSU is a single rail model with an OCP of 122A on the 12V line and 55A on the 5V line. Regression: It doesn't matter whether the drive its APM value is set to disabled or 1 (maximum power saving). The operating system records no read/write activity in /proc/diskstats. The values there are identical (28 read, 0 write operations) as immediately after the modprobe operation. Can't test what happens when booting into the mainboard it's BIOS - to exclude any OS intervention - because the Super Micro X8SI6-F mainboard running firmware 06/27/12 has a bug that incorrectly reads a +74.0 C CPU sensor temperature as "High" in BIOS mode, and shuts down the power after 1 minute. What might be causing the drive read/write activity on all drives in the 15th minute after boot and how to prevent it from happening?

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• XP shared folders not accessible after BIOS changed

  - by stijn

  Here's what worked for over a year: PC A runs Windows 7, PC B runs Windows XP. Both are on the same subnet behind a router. A uses user account X, but logs in to PC B using the Administrator account. PC B is a Dell Precision 470. A known problem with these is that sometimes when plugging in their power cable they somehow loses all BIOS settings. This happened yesterday. After this happens Windows won't boot, because the default BIOS setting is 'RAID ON' while there is no RAID configured. No problem though, changing the BIOS settings to 'RAID OFF' makes it boot without problems. Note that in the meantime, nothing config-related was changed on machine A. It wasn't even on. Indeed after doing this, everything is fine. Everything includes all normal operations, remote desktop from PC A to PC B, running Synergy between A and B, accessing shared folders from B to A. But accessing the shared folders on B from A does not work any more. I tried pretty much everything I found via Google (fiddling with policies/registry kes/...) but no avail. > ping -a 192.168.2.2 Pinging A [192.168.2.2] with 32 bytes of data: Reply from 192.168.2.2: bytes=32 time<1ms TTL=128 > net view \\192.168.2.2 System error 5 has occurred. Access is denied. > net use /persistent:no K: \\A\myshare /user:A\USERNAME PASSWORD > net use /persistent:no K: \\192.168.2.2\myshare /user:192.168.2.2\USERNAME PASSWORD > net use /persistent:no K: \\192.168.2.2\myshare /user:USERNAME PASSWORD System error 86 has occurred. The specified network password is not correct. A solution to this would be great: I haven't been able to do any work since yesterday ;] update after taking the hard drive out of B and putting it in another Precision 470 with almost exactly the same hardware (at first sight, only the video card differs) the shared folders work.. Putting the disk back into A, same problem remains. Why does this depend on hardware, and more important, on which hardware?

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• UAE and the mysteries of unreachable websites

  - by 0plus1

  I write here because I'm really lost, please stay with me because it's not easy to explain. A company asked me to set-up a private server, now I'm a programmer so I got a solution with technical support and cpanel which helped me to setup everything and it's working smoothless. I'm by no means a professional sysadmin, but I have a fair knowledge of server configurations, but this problem is way over my knowledge, and apparently way over the knowledge of most sysadmins, I really hope that here I'll find someone with enough experience to help me or at least give me more insight. Now this company for which I'm consulting operates in the UAE (United Arab Emirates) and from there the server is almost unreachable. It started with ns not registering in the UAE, after a week that sorted itself out and now the site is indeed reachable, but it takes almost 2 minutes to load a webpage with one line of text. Emails go in timeout. The domain currently parked there has been bought appositely for tests, the main one that was supposed to go there, after a catastrophic week has been transferred to a shared hosting solution in the UK, and from there it works like a charme. Now after doing some research I discovered that I'm not alone in this, there are several reports of webmasters discovering that their website is not reachable inside the UAE, and mind this has nothing to do with the state-wide block of questionable sites, because in that case an error message appears, this seems to be related to the infrastructure of the UAE, which apparently reroutes everything through their own "fake" internet. Apparently new servers with their own IP are not recognized (yet?) by the UAE infrastructure, while shared hosting solutions seeing that they operates tons of other websites are more likely to be part of the UAE network. Now my questions are: 1) Has someone a real explanation for this? The only thing I can think of is that the server is on a new IP that is not yet recognized by the UAE, but that doesn't explain why it loads (even if after 2 minutes). I don't have any help from within the UAE as the only people that are "experts" are questionable companies that simply try to sell their own services. 2) If there is really some kind of block of new servers, is it possible to know before if a server is reachable from within the UAE, currently this is not a ns problem as even accessing the server with its IP result in a 2 minute wait. 3) Can it be that the problem lies somewhere else? There are some tests that I can perform? I'm not physically in the UAE, but I can ask the people there, or use teamviewer. Could it be some misconfiguration on the server (mind that the site works EVERYWHERE else in the world). Thank you for ANY kind of help

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