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• "remote file operation failed" on Hudson

  - by Aveen

  I am running a Windows slave for Husdon 1.337 (Linux master). When running a project on the Windows node, it fails with the following message: Building remotely on winTestSlave Checking out a fresh workspace because there's no workspace at C:\hudson\***\ejb remote file operation failed It did work yesterday and I have not upgraded Hudson or changed its configurations (or the slave's configurations) in any way. I establish the connection between the slave and the master by running the following command on a cygwim prompt on the slave: java -jar slave.jar -jnlpUrl http://myserver/computer/winTestSlave/slave-agent.jnlp I saw the issue http://issues.hudson-ci.org/browse/HUDSON-5374 and did as instructed in the work-around but that did not work. I also tried with a newer version of slave.jar (version 1.356) but that did not work either. Does anyone please have any idea of how to fix this? I really cannot find more information anywhere else!

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• file downloaded via firefox and curl have different size

  - by Arash Mousavi

  When I download a file from this link by Firefox its size is 74580 B, But when I download it by curl with exactly all of header was sent by Firefox its size is 79891 B (I copied all header from Firefox and paste it in curl command). what is the problem? If you need any additional data ask me in comment. My curl command: curl --header 'Host: members.tsetmc.com' --header 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0' --header 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' --header 'Accept-Language: en-US,en;q=0.5' --header 'Referer: http://www.tsetmc.com/Loader.aspx?ParTree=15131F' --header 'Cookie: ASP.NET_SessionId=pwzbckbdpjlzqj45vcdbd455' --header 'Connection: keep-alive' 'http://members.tsetmc.com/tsev2/excel/MarketWatchPlus.aspx?d=0' -o 'MarketWatchPlus-1393_3_14.xlsx' -L

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• Best method(s) to backup VMs running on HyperV?

  - by Kara Marfia

  We're in the middle of P2V'ing most of the network, so the current backup method is likely the worst - the backup agent is still installed on the guest OSs, and the backup device is dutifully pulling them onto tape, one file at a time. I suspect there's a clever way to script (PowerShell?) a suspend on the VMs, then backup of the .vhd files, and unsuspend the VMs. This seems like it would provide big speed benefits, while losing file-level restore (might be best for things like DCs and app servers). What methods/policies have you hammered out?

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• Apply SetEnvIf after Apache RewriteRule

  - by coneybeare

  I have a working apache rewrite rule: RewriteCond %{HTTP_HOST} ^.*foo.com RewriteRule (.*) http://bar.com$1 [R=301,QSA,L] and some working dontlog SetEnvIfs: SetEnvIf Request_URI "^/server-status$" dontlog SetEnvIf Request_URI "^/home/ping$" dontlog SetEnvIf Request_URI "^/haproxy-status$" dontlog SetEnvIf User-Agent ".*internal dummy connection.*" dontlog CustomLog /var/log/apache2/access.log combined env=!dontlog but I can't figure out how to stop the RewriteRule from logging a duplicate line. foo.com and bar.com are both on the same machine. I would expect this rule to work, but it did not: SetEnvIf Host "foo.com" dontlog I still get duplicates in the Apache Log: 10.250.18.97 - - [06/Apr/2012:16:57:12 +0000] "GET / HTTP/1.1" 200 732 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3" 68.194.30.42 - - [06/Apr/2012:16:57:12 +0000] "GET / HTTP/1.1" 200 732 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3" .... where 10.250.18.97 is the server's IP. How can I prevent that RewriteRule from logging?

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• nginx conditional Accept header

  - by manu_v

  Some mobile devices send the following incorrect requests to our servers : GET / HTTP/1.0 Accept: User-Agent : xxx The empty Accept header causes our Ruby on Rails server to throw back a 500 error. In Apache, the following directive allows us to rewrite the header before sending it to the application RoR server in order to cope with the broken devices : RequestHeader edit Accept ^$ "*/*" early We're currently setting up nginx, but achieving the same work-around is proving difficult. We are able to set : proxy_set_header Accept */*; However, this seems to have to be done inconditionally. Whenever trying to do : if ($http_accept !~ ".") { proxy_set_header Accept */*; } It complains with the message : "proxy_set_header" directive is not allowed here So, using nginx, how can we set the HTTP Accept header to */* when it is empty before sending the request to the application server ?

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• How to suppress "Not collecting exported resources without storeconfigs"?

  - by Andy Shinn

  I'm getting the following in my Puppet master syslog over and over: Sep 27 11:52:05 puppet1 puppet-master: Not collecting exported resources without storeconfigs Sep 27 11:52:06 puppet1 puppet-master: Not collecting exported resources without storeconfigs Sep 27 11:52:06 puppet1 puppet-master: Not collecting exported resources without storeconfigs I'm not actually using storeconfigs: [ashinn@puppet1 ~]$ cat /etc/puppet/puppet.conf [agent] server = puppet.mydomain.com environment = production report = true [main] logdir = /var/log/puppet vardir = /var/lib/puppet ssldir = /var/lib/puppet/ssl rundir = /var/run/puppet factpath = $vardir/lib/facter pluginsync = true certname = puppet1.mydomain.com [master] modulepath = $confdir/environments/$environment/modules manifest = $confdir/environments/$environment/manifests/site.pp templatedir = $confdir/templates autosign = $confdir/autosign.conf ssl_client_header = SSL_CLIENT_S_DN ssl_client_verify_header = SSL_CLIENT_VERIFY report = true reports = hipchat Any way I can suppress these messages? What do they actually come from?

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• Missing menu items for Azure SQL tables within SQL Server Management Studio?

  - by Sid

  I have a table (say Table1) that is replicated via SQL Data Sync Agent across a local SQL Server 2012 as well as an Azure SQL Server (part of Microsoft Azure). Everything about Table1 (schema, table values etc ) is identical to the best of my understanding. However, when I list and right click Table1 from Microsoft SQL Server Management Studio 2012 (SSMS), I get some very different menu options, even for seemingly basic stuff. Lets focus only on the 'Design' menu item: It is visible for Table1 on the local SQL server in SSMS It is missing for Table1 on Azure SQL via SSMS It is visible for Table1 (as Open Table Definition) on Azure SQL when reaching it via Visual Studio 2012 (Server Explorer - Data connections) This is seen in the screenshots below: Now I use scripts from some real stuff (esp when I need to check in the SQL scripts etc) but this difference concerns me to some extent. Am I witnessing just a tools artifact in SQL Server Management Studio when connecting to Azure SQL? or is it something more serious about limitations of Azure SQL itself (although, just seeing the Design surface is so basic!)?

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• What are best monitoring tool customizable for cluster / distributed system?

  - by Adil

  I am working on a system having multiple servers. I am interested in monitoring some server specific data like CPU/memory usage, disk/filesystem usage, network traffic, system load etc. and some other my process specific data. What are available open source that can serve my purpose? If it provides to customize the parameter to be monitored and monitor your own data by creating plugin / agent. Any suggestions? I heard of Nagios, Zabbix and Pandora but not sure if they provide such interface.

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• How do I launch a process as a specific user at startup on OS X?

  - by Scott Bonds

  I would like to run a script as a particular user on startup (not on login). I thought a launchd LaunchDaemon would do it, but 'man launchd' says: "If you wish your service to run as a certain user, in that user's environment, making it a launchd agent is the ONLY supported means of accomplishing this on Mac OS X. In other words, it is not sufficient to perform a setuid(2) to become a user in the truest sense on Mac OS X." They aren't kidding--when I try to run my script as a LaunchDaemon it doesn't work. In particular I'm trying to automate some keychain operations using the 'security' command, and it won't let me change the default keychain when I run the script through LaunchDaemon, though the script works fine when run using sudo from a shell. A LaunchAgent won't work, because the goal is for the proces to run without a user logging in and LaunchAgents only run when someone logs in. I looked at cron and the @reboot directive and that looks promising, but I read that cron is deprecated on OSX.

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• Why is Google Chrome making these weird requests?

  - by mackenir

  I noticed that now and again, Chrome will make three requests to weird hostnames that arent resolved. For example: HEAD http://gtblynlsos/ HTTP/1.1 Host: gtblynlsos Proxy-Connection: keep-alive Content-Length: 0 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.13 (KHTML, like Gecko) Chrome/9.0.597.107 Safari/534.13 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-GB,en-US;q=0.8,en;q=0.6 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 Other example weird hostnames: http://nxibbjklov/ http://moheksgryj/ Has anyone else seen this? Any ideas what's going on? I have all Chrome extensions disabled.

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• backuppc - how to backup remote (over the internet) clients?

  - by Scott

  I am testing out backuppc, which works great so far backing up windows clients on a LAN via SMB (no backup client/agent required). However I have quite a few laptops and desktops that are in various remote locations - some of which move around. I need some way to have that remote computer create an outgoing connection for backup purposes (Windows XP/7). I know backuppc supports smb, rsync and 'tar', but I believe these are all connections going from the server TO the client. SO, I either need a way to vpn the client on a timed basis, or it would be a lot better if the client could some how connect to the server (ssh?) and initiate it's own backup somehow (rsync?). Of course this all needs to be pre-installed by me and require no maintenance by the end user, no dialogs on their side. What do you think?

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• Can I optimize this mod_wsgi / apache file better?

  - by tomwolber

  I am new to Django/Python/ mod_wsgi, and I was wondering if I could optimize this file to reduce memory usage: ServerRoot "/home/<foo>/webapps/django_wsgi/apache2" LoadModule dir_module modules/mod_dir.so LoadModule env_module modules/mod_env.so LoadModule log_config_module modules/mod_log_config.so LoadModule mime_module modules/mod_mime.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule wsgi_module modules/mod_wsgi.so LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined CustomLog /home/<foo>/logs/user/access_django_wsgi.log combined ErrorLog /home/<foo>/logs/user/error_django_wsgi.log KeepAlive Off Listen 12345 MaxSpareThreads 3 MinSpareThreads 1 MaxClients 5 MaxRequestsPerChild 300 ServerLimit 4 HostnameLookups Off SetEnvIf X-Forwarded-SSL on HTTPS=1 ThreadsPerChild 5 WSGIDaemonProcess django_wsgi processes=5 python-path=/home/<foo>/webapps/django_wsgi:/home/<foo>/webapps/django_wsgi/lib/python2.6 threads=1 WSGIPythonPath /home/<foo>/webapps/django_wsgi:/home/<foo>/webapps/django_wsgi/lib/python2.6 WSGIScriptAlias /auctions /home/<foo>/webapps/django_wsgi/auctions.wsgi WSGIScriptAlias /achievers /home/<foo>/webapps/django_wsgi/achievers.wsgi

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• Squid stale-while-revalidate not working when max-age=0

  - by Wiliam

  Squid 2.7 always reaches backend, expected is to reach backend using stale-while-revalidate only when cache expires, not when client triggers max-age=0. Script: <?php header('Cache-Control: public, max-age=10, stale-if-error=200, stale-while-revalidate=500'); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); sleep(2); die("OK"); And squid config: # http_port public_ip:port accel defaultsite= default hostname, if not provided http_port 80 accel defaultsite=mydomain.com # IP and port of your main application server (or multiple) cache_peer 127.0.0.1 parent 8000 0 no-query allow-miss originserver name=main # Do not tell the world that which squid version we're running httpd_suppress_version_string on # Remove the Caching Control header for upstream servers header_access Cache-Control deny all #header_access Last-Modified deny all # log all incoming traffic in Apache format logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh access_log /usr/local/squid/var/logs/squid.log combined all cache_effective_user squid refresh_pattern . 10080 90% 999999 ignore-no-cache override-expire ignore-private icp_port 0

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• SQL-Server 2008 : Table Insert and Range Check ?

  - by LB .

  I'm using the Table Value constructor to insert a bunch of rows at a time. However if i'm using sql replication, I run into a range check constraint on the publisher on my id column managed automatically. The reason is the fact that the id range doesn't seem to be increased during an insert of several values, meaning that the max id is reached before the actual range expansion could occur (or the id threshold). It looks like this problem for which the solution is either running the merge agent or run the sp_adjustpublisheridentityrange stored procedure. I'm litteraly doing something like : INSERT INTO dbo.MyProducts (Name, ListPrice) VALUES ('Helmet', 25.50), ('Wheel', 30.00), ((SELECT Name FROM Production.Product WHERE ProductID = 720), (SELECT ListPrice FROM Production.Product WHERE ProductID = 720)); GO What are my options (if I don't want or can't adopt any of the proposed solution) ? Expand the range ? Decrease the threshold ? Can I programmatically modify my request to circumvent this problem ? thanks.

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• Is running multiple databases on login going to make my Mac really slow?

  - by Walrus the Cat

  Sometime ago, I installed Postgres, and the Launch agent that causes it to run when I log in. Just now, I did the same thing for Mongo. I was just about to do it for Couch. I don't remember if I ever did it for MySQL, but I probably did. Mongo and Couch are just 'when I have time to look into it' sort of things, but I don't want to have to remember to start them when I do. I have a 2.4 Ghz processor and 8 GB ram. Is this sort of behavior going to significantly impact my computer's performance? Should I be scrambling to uninstall all but the database I'm currently using, or can I install all the things and run them all the time? Thanks

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• WMI Notfication and database mirroring

  - by user22215

  Hi all I'm having a problem configuring a WMI alert that I would like to use with database mirroring. I'm running on Windows 2008 Enterprise X64 with Server 2008 Enterprise X64 also SQL Server has SP1 installed. Basically I click on alert select WMI after that I typed the below SQL statement SELECT * FROM DATABASE_MIRRORING_STATE_CHANGE WHERE DatabaseName = 'testmove' AND State = 8 I have also made sure the service broker is enabled for the msdb and all mirrored databases however I still can't get this to work basically the alert never fires. I'm testing with just the alert functionality I have not even added in the agent job yet. I tested this by right clicking on my mirrored database and forcing it to fail over. Any help with this problem would be much appreciated

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• Enable mod_deflate per directory level

  - by z1_jabbar

  I am using following code, when i access site it only compress all the jsp inside all the urls path under /abc but it ignores all the js and css files. I want to compress js and css files under all the subfolders in /abc path? How I can do this. Thanks! <LocationMatch "/abc"> <IfModule mod_deflate.c> SetOutputFilter DEFLATE # Don't compress images SetEnvIfNoCase Request_URI \ \.(?:gif|jpe?g|png)$ no-gzip dont-vary #Don't compress PDFs SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary #Don't compress compressed file formats SetEnvIfNoCase Request_URI \.(?:7z|bz|bzip|gz|gzip|ngzip|rar|tgz|zip)$ no-gzip dont-vary <IfModule mod_headers.c> Header append Vary User-Agent </IfModule> </IfModule> </LocationMatch>

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• Software for defining rules for folder permissions and monitoring deviations

  - by Kjensen

  Let's say a company has a large number of users, and each user has a home area. On each share used for home area folders, I would like to define some rules saying who is supposed to have which permissions on the folder. Then I would like to audit automatically, that this is actually the case and get some sort of report on deviations. So a rule for \MegaServer\Home01 could be defined something like: Domain Admins - Full Control Backup Agent - Read [Home folder owner] - Full Control I am talking about Windows platform and Windows servers, although I think it would most likely also work for *nix machines that expose Windows shares. Does software like this exist? I could roll my own basic version, but if something already exists, that is usually a better option. I am aware of tools to make displaying permissions easier (AccessEnum, DumpSec), but that is not what I am looking for.

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• Get OpenVPN clients names to resolve through dnsmasq

  - by Fake Name

  I have a PFSense box running as an OpenVPN server. There are several remote devices that connect through the VPN (as tap devices). The VPN stuff is working, I can access the remote hardware by looking up the IP assigned to each device on the PFSense router. What I'd like is to have it so I can resolve the remote hardware addresses via DNS while on the local network. Note that this is only local-network - remote-device (they're backup boxes). I don't need to have the remote devices resolve using the local DNS forwarding agent. I have the rest of the devices on the network that need to be accessible via DNS report their name during the DHCP process. However, the IP assignment for OpenVPN tap clients, while it is dynamic (which is why I need DNS), does not seem to use the local DHCP server. How can I have my openvpn server add information for it's clients to the dnsmask resolver? Is this setup even reasonable (I'm not familiar with openVPN at all)?

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• puppet onlyif specified nodes

  - by Valintinr

  I'm trying to write a puppet template. I have a puppet-master and a few puppet-agents and they all must be divided. I think it's good to do this by the node's hostname. But when I tried to do this I've encountered an error "puppet-agent[169037]: (/Stage[main]//Exec[adduser]) Could not evaluate: Could not find command 'ru1'" see code below exec { 'adduser': command => 'sudo adduser -m -p pawSfQewWrUAA test -G wheel', path => [ '/bin','/usr/bin' ], onlyif => "$hostname == ru1" } I need to specify this task for only one node with the hostname ru1. So have can I do this? Thanks.

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• how to include error messages into backup reports for SQL Server 2008 R2?

  - by avs099

  Right now I have daily (differential) and weekly (full) backups set on my SQL Server 2008 R2 as jobs for SQL Server Agent with email notifications if job fails. I do get emails like this: JOB RUN: 'Daily backup.Diff backup' was run on 4/11/2012 at 3:00:00 AM DURATION: 0 hours, 0 minutes, 28 seconds STATUS: Failed MESSAGES: The job failed. The Job was invoked by Schedule 9 (Daily backup.Diff backup). The last step to run was step 1 (Diff backup). but often that happens because we delete/create new databases - and diff backup fails. And the only way for me to see the actual reason is to go to Log Viewer - Maintenance Plans logs. Is it possible to include "Error Message" field from the logs into notification emails? And more generic - is it possible to change notification email templates somehow?.. Thanks you.

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• Hyper-v back-up

  - by Ddave23

  We are trying to decide a good backup strategy for our new Hyper-V setup. We have 3 VMs on Windows 2008 R2 Hyper-V host. We installed Symantec BackupExec 2010 on the host and have the Hyper-V Agent installed. We would like to perform a full backup at night to tape, and an incremental twice a day to a daily tape. Our environment needs constant protection for our database (Microsoft Access). Any thoughts? Should I be looking at different software?

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• non-interactive ssh sudo... prompts for the password in plain text

  - by Iain

  I'm running some non-interactive ssh commands. The ssh authentication is taken care of fine through the ssh agent, but if I run a command that requires sudo then the password prompt in my terminal is plain text. For example: ssh remotemachine "sudo -u www mkdir -p /path/to/new/folder" will prompt me for the password in plain text. Does anyone know how I can get it to use the normal secure prompt or that I can pass the password via a switch? (as then I can set up a secure prompt on this side before I send the command) Any help is much appreciated.

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• Automatic repair software

  - by ADOConnection

  Do anyone knows any kind of apps or services for "taking care of servers"? (besides managed servers) There are hundreds of ways your server or application can stop working properly. Small things are easy to miss but usually easy to fix. Log overgrouth, configuration issues, etc. Of course there are best practice checklists, but its not a human task to check configuration best practices. Im sure it can be automated: some kind of agent can monitor all system settings, say what is right and wrong and give suggestions on how to make it right. I have to admin several servers and I need some kind of overview of overall situation. As well as a tool, that will fix problems automatically. Can you people suggest something? (I know its a little bit out of rules of SF, but I think this particular question is quite specific) It would be great to have something like http://stackoverflow.com/questions/1451319/asp-net-mvc-view-engine-comparison but for automation software.

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• How do I get openssh to save my ssh identity permanently in Xfce?

  - by Alliswell

  How do I change it to save my identity permanently using Xfce? During my login session after I have entered: $ ssh-add Then identity is saved and I can connect via ssh without getting the dreaded: Enter passphrase for key However, once I logout and login back-in I get the following when running: $ ssh-add -L The agent has no identities. $ ssh <hostname> Enter passphrase for key '/home/user/.ssh/id_rsa': Stackoverflow has the following solution, yet I do not understand the reference to in the config file: IdentityFile ~/.ssh/id_rsa_buhlServer Specifically I do not understand what I would put on the identity file. Would I put the above word for word? Or just add my file: IdentityFile ~/.ssh/id_rsa StackOverflow solution

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