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• Problems during an update of cPanel / WHM

  - by haron

  I ordered a Master WHM account with the couple CentOS / cPanel. whm-cpanel.eu.pn The installation is a fresh update of the basic services was necessary (had: WHM 11.15.0 cPanel 11.17.0 WHM X v3.1.0, Apache 1.3.37, PHP 4.4.7, MySQL 4.1.22). 1 / I started to update cPanel / WHM via the command: / scripts / upcp. Everything went well until the middle of installing the server stopped responding (or ping, or ssh). The installation appears to have continued alone to the end and after some time everything is back to normal (I do not know if there was a reboot) and my interface was updated (cPanel 11.24.4-R36167 - WHM 11.24.2 - X 3.9). 2 / Then I updated via the MySQL interface tweak this in WHM then the command: / scripts / mysqlup. Here everything went fine, no problem. 3 / Finally, I wanted to upgrade Apache 2.2 / PHP 5 and I used this command: / scripts / easyapache. After selecting all the packages and modules installation is started but the same as for point 1: the server did not answer more and this time the installation did not go through. Apache 2.2 is well spent (after the second try) but PHP has remained at 4. I tried several times the same operation without success. I do not think this is a memory problem, a free-m shortly before losing communications gave nothing alarming. By cons CPU time seemed to rise up. I reinstalled the machine again the trick, same problem! Whether via the WHM interface or by Shell, the installation stops short, for 15 minutes the machine is not responding and then everything returns to normal, but no update is done in PHP. Is there a known bug in this version of cPanel / WHM? Someone he met the same problem? If I compile Apache / PHP manually, without using the script easyapache is what I might encounter problems with cPanel later? Thank you!

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• Bind9 configured to start at boot, has to be started manually

  - by antik

  I've configured bind9 on my system and it works great when it runs. It's currently configured to be run at runlevel 2 by setting: $ sudo update-rc.d bind9 enable 2 This appears to have done its work: $ tree -f /etc/rc?.d | grep -e ".*bind9$" |-- /etc/rc0.d/K85bind9 -> ../init.d/bind9 |-- /etc/rc2.d/S15bind9 -> ../init.d/bind9 |-- /etc/rc3.d/S15bind9 -> ../init.d/bind9 |-- /etc/rc4.d/S15bind9 -> ../init.d/bind9 |-- /etc/rc5.d/S15bind9 -> ../init.d/bind9 |-- /etc/rc6.d/K85bind9 -> ../init.d/bind9 Booting the system, I believe I am at runlevel 2: $ runlevel N 2 Given the above configuration, when the system is rebooted, bind does not come up. Only on occasion, for some reason, can I resolve hostnames immediately after startup. Far more often than not however, I cannot. I can interrogate the service's status: $ sudo /etc/init.d/bind9 status * could not access PID file for bind9 When the service doesn't start, I can start it successfully via a terminal by issuing $ sudo /etc/init.d/bind9 start And it works great from then on. Loopback configuration: $ ifconfig lo lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1872 errors:0 dropped:0 overruns:0 frame:0 TX packets:1872 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:220205 (220.2 KB) TX bytes:220205 (220.2 KB) Do I have my startup misconfigured? (I'm used to Gentoo so Ubuntu's model is still a little new to me) I'm not seeing any log indication of a failed attempt to start at boot in syslog. Is there someplace else I should be looking? What else should I look into to get bind working at startup?

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• SQL Server Management Studio not scripting all objects

  - by Ian Boyd

  i've been attempting to script a database using SQL Server 2005 Management Studio. i cannot get it to script some objects. It scripts others, but skips some. i can provide detailed screen shots the options being selected including all tables the folder where the script files will go the folder being empty before scripting the scripting process saying Sucess when scripting a table the destination folder no longer empty, with a hundred or so script files the script of some tables not being in the folder. And earlier SSMS would not script some views. Is this a known thing that the the Generate Scripts task does not generate scripts? Update Known issue on Microsoft Connect, but Microsoft couldn't repro the steps, so they closed closed the ticket. Fails on SQL Server 2005, also fails on SQL Server 2008. Update Two Some basic questions: 1.What version of SQL Server? Microsoft SQL Server 2000 - 8.00.194 (Intel X86) Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Microsoft SQL Server 2008 - 10.0.2531.0 (Intel X86) Microsoft SQL Server 2005 Management Studio: 9.00.4035.00 Microsoft SQL Server 2008 Management Studio: 10.0.1600.22 2.What O/S are you running on? Windows Server 2000 Windows Server 2003 Windows Server 2008 3.How are you logging in to SQL server? sa/password Trusted authentication 4.Have you verified your account has full access to all objects? Yes, i have access to all objects. 5.Can you use the objects that fail to script? (eg: select top(10) * from nonScriptingTable) Yes, all objects work fine. SQL Server Enterprise Manager can script the objects fine. Update Three They fail no matter what version of SQL Server you script against. It wasn't a problem in Enterprise Manager: Client Tools SQL Server 2000 SQL Server 2005 SQL Server 2008 ============ =============== =============== =============== 2000 Yes n/a n/a 2005 No No No 2008 No No No Update Four No errors found in the database using: DBCC CHECKDB go DBCC CHECKCONSTRAINTS go DBCC CHECKFILEGROUP go DBCC CHECKIDENT go DBCC CHECKCATALOG go EXECUTE sp_msforeachtable 'DBCC CHECKTABLE (''?'')' Honk if you hate SSMS.

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• Writing a script for ash?

  - by rumtscho

  My VPN is behaving funny sometimes, and I have to restart it often. I wanted to write a script which does that for me. It doesn't have to be anything fancy, just a shortcut for the commands I have to type into the terminal. More specifically: it will look at the running processes. If it finds a running vpnc process, it will kill it. Then it will start vpnc. I've written bash scripts of similar complexity, but now I don't have a bash, only an ash. Until now, the only difference I noticed is that there are much less commands available, but then, I don't use it very often. So I have some questions. Is writing ash scripts different than writing bash scripts? Is there something specific to consider when doing it? When the script is ready, how can I deploy it? For bash, I just put the executable file under /usr/lib and run it by typing the file name into the command line, will this work with ash? Are there any special pitfalls to watch out for in the script I want to write? I think that the killing process part may get hairy, if I write something that kills the wrong process, but even then running the script shouldn't break anything permanently, right?

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• Can't Connect To Local Mysql Using IP Address, but CAN connect from remote server

  - by user1782041

  Here's an interesting one that does not seem to fall into any of the mysql connection issues I've read about or searched for: On an Ubuntu 12.04 box I had some system updates waiting to install, and I took care of that this evening. After the install, I started seeing some errors in my syslog complaining about a particular php script that could no longer connect to the mysql instance on the box. Here is the specific error: PHP Warning: mysql_connect(): Can't connect to MySQL server on '192.168.0.40' (4) Now, the server's IP address is 192.168.0.40, and I've checked to make sure that I have mysql listening on 0.0.0.0 so that I can connect using either "localhost" or "192.168.0.40". Here's where things get odd: From the local machine, if I try the following: mysql -uroot -p -h192.168.0.40 I get this error: ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.0.40' (110) I've checked, and error 110 indicates an OS timeout, and error 2003 is the mysql generic "can't connect" error. This indicates that it is not permissions with the user. However, if I do the same thing from a remote machine (say, from 192.168.0.30), I log right in with no problems. Futher, other scripts on the local machine that connect to mysql using "localhost" for the host rather than "192.168.0.40" connect with no problems. Also, I can connect via the mysql socket with no problems both from the command line and php scripts. So, this feels like a networking issue of some kind on the local box, but there are no iptables rules on this box (it is firewalled externally) and I can't figure out what else may be causing this. This problematic script worked perfectly prior to the latest system update. For now, I'll simply change the script to connect via localhost, but I'd really like to know why it broke for 2 reasons: There may be other scripts that connect using 192.168.0.40 that don't run very often which are now broken. Auditing them all will take more time than I feel like devoting at the moment. I'm curious, and want to know why it broke so I can fix it correctly. Any help?

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• Mod_Perl configuration for multiple domains

  - by daliaessam

  Reading the Mod_Perl module documentation, can we configure it on per domain basis, what I mean can we configure it to run on every domain or specific domain only. What I see in the docs is: Registry Scripts To enable registry scripts add to httpd.conf: Alias /perl/ /home/httpd/2.0/perl/ <Location /perl/> SetHandler perl-script PerlResponseHandler ModPerl::Registry PerlOptions +ParseHeaders Options +ExecCGI </Location> and now assuming that we have the following script: #!/usr/bin/perl print "Content-type: text/plain\n\n"; print "mod_perl 2.0 rocks!\n"; saved in /home/httpd/httpd-2.0/perl/rock.pl. Make the script executable and readable by everybody: % chmod a+rx /home/httpd/httpd-2.0/perl/rock.pl Of course the path to the script should be readable by the server too. In the real world you probably want to have a tighter permissions, but for the purpose of testing, that things are working, this is just fine. From what I understand above, we can run Perl scripts only from one specific folder that we put the directive above. So the question again, can we make this directive per domain for all domains or for specific number of domains?

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• Apple Service Diagnostic application on USB key?

  - by Matt 'Trouble' Esse

  I found the following in a text file, and I would like to use the Apple Service Diagnostic Application from a bootable USB key but I cannot find where to download it or set it up? Also is this free software or does it require a separate licence? It sounds like it would be a useful tool for diagnosing Mac problems. The Apple Service Diagnostic application is designed to run both EFI and Mac OS X tests from an external USB hard drive. Apple Service Diagnostic (EFI) runs low-level tests of the hardware directly and does not require Mac OS X, while Apple Service Diagnostic (OS) uses Mac OS X to run tests. Booting and Using the Apple Service Diagnostic Application - Before using Apple Service Diagnostic, disconnect any Ethernet network, USB, and audio cables. - With the USB hard drive containing ASD 3S123 plugged into a USB port, restart the computer and hold down the option key as the computer boots up into the Startup Manager. To run ASD (EFI) select the "ASD EFI 3S123" drive icon and press return or select it with a mouse click. To run ASD (OS) select the "ASD OS 3S123" drive icon and press return or select it with a mouse click. ASD (EFI) will load in 20-30 seconds; ASD (OS) will load in 2-3 minutes. - After running ASD (OS) or ASD (EFI), press the Restart button to restart the computer back into the normal startup volume, or hold down the option key to get back to the Startup Manager. ASD is no longer delivered as an image to be restored onto a DVD. ASD 3S117 and newer versions requires installation onto an external USB hard drive. For more information, please refer to the document "Installing ASD on a USB hard drive".

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• Adding network share as the system account breaks Win7 backup to network

  - by ChrisBenn

  (On Win7 Ultimate x64 SP1) So I've been using Win7 backup to \192.168.0.100\Backup\main-desktop\ for awhile without issue. Yesterday I tried to setup crashplan to synchronize my dropbox folder and a network share. I then found out that crashplan, as it runs under the system account, can't see my user mapped drives. So I created a startup script net use O: \192.168.0.100\Documents /USER:192.168.0.100\username password and set it to run, on startup, after the network interface is up, as the system account. (the username & password are the same for the net use script above, the locally logged in user, and the explicit username/password entered in windows backup). I woke up this morning to find error flags from the windows backup and get "Network location cannot be used" (0x800704B3). If I disable the startup task & reboot then windows backup works fine. I'm not sure why having a mapped drive for another user is killing windows backup (same server, different folder). I can work around the issue by using another program to synchronize the two folders, but I'm completely in the dark as to why this happens (and it's 100% repeatable). Uninstalling the crashplan client doesn't change anything - it's the net use run under the system account that breaks win7 backup (to a network location).

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• SQL Server Management Studio not scripting all objects

  - by Ian Boyd

  i've been attempting to script a database using SQL Server 2005 Management Studio. i cannot get it to script some objects. It scripts others, but skips some. i can provide detailed screen shots the options being selected including all tables the folder where the script files will go the folder being empty before scripting the scripting process saying Sucess when scripting a table the destination folder no longer empty, with a hundred or so script files the script of some tables not being in the folder. And earlier SSMS would not script some views. Is this a known thing that the the Generate Scripts task does not generate scripts? Update Known issue on Microsoft Connect, but Microsoft couldn't repro the steps, so they closed closed the ticket. Fails on SQL Server 2005, also fails on SQL Server 2008. Update Two Some basic questions: 1.What version of SQL Server? Microsoft SQL Server 2000 - 8.00.194 (Intel X86) Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Microsoft SQL Server 2008 - 10.0.2531.0 (Intel X86) Microsoft SQL Server 2005 Management Studio: 9.00.4035.00 Microsoft SQL Server 2008 Management Studio: 10.0.1600.22 2.What O/S are you running on? Windows Server 2000 Windows Server 2003 Windows Server 2008 3.How are you logging in to SQL server? sa/password Trusted authentication 4.Have you verified your account has full access to all objects? Yes, i have access to all objects. 5.Can you use the objects that fail to script? (eg: select top(10) * from nonScriptingTable) Yes, all objects work fine. SQL Server Enterprise Manager can script the objects fine. Update Three They fail no matter what version of SQL Server you script against. It wasn't a problem in Enterprise Manager: Client Tools SQL Server 2000 SQL Server 2005 SQL Server 2008 ============ =============== =============== =============== 2000 Yes n/a n/a 2005 No No No 2008 No No No Update Four No errors found in the database using: DBCC CHECKDB go DBCC CHECKCONSTRAINTS go DBCC CHECKFILEGROUP go DBCC CHECKIDENT go DBCC CHECKCATALOG go EXECUTE sp_msforeachtable 'DBCC CHECKTABLE (''?'')' Honk if you hate SSMS.

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• WT-NMP - PHP-CGI randomly stops running with no error log

  - by alexfontaine

  We have recently installed WT-NMP and are currently running Php-Cgi with php 5.4.24. We are running fairly simple php scripts and when testing everything is running fine. Over the weekend we wanted to keep the server running test it over a longer period of time. The server and scripts ran fine all day on Friday, but sometime late on Saturday, the php-cgi stopped running. There are no errors in the error log (C:\WT-NMP\log). In the configuration (php.ini) I have the following options set: error_reporting = E_ALL display_errors = On display_startup_errors = On log_errors = On html_errors = On error_log = "c:/wt-nmp/log/php_error.log" We also have the standard nginx.conf error logs: access_log "c:/wt-nmp/log/nginx_access.log"; error_log "c:/wt-nmp/log/nginx_error.log" warn; So, since the log directory is empty, I am assuming that the running php scripts and general nginx operations are not causing the php-cgi to stop. So my questions are: What else could cause the php-cgi to stop running? Are there any other options for logging that we could turn on that could help us track this down? Are there other log locations that we should be looking at? Thanks!

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• Group Policy installation failed error 1274

  - by David Thomas Garcia

  I'm trying to deploy an MSI via the Group Policy in Active Directory. But these are the errors I'm getting in the System event log after logging in: The assignment of application XStandard from policy install failed. The error was : %%1274 The removal of the assignment of application XStandard from policy install failed. The error was : %%2 Failed to apply changes to software installation settings. The installation of software deployed through Group Policy for this user has been delayed until the next logon because the changes must be applied before the user logon. The error was : %%1274 The Group Policy Client Side Extension Software Installation was unable to apply one or more settings because the changes must be processed before system startup or user logon. The system will wait for Group Policy processing to finish completely before the next startup or logon for this user, and this may result in slow startup and boot performance. When I reboot and log in again I simply get the same messages about needing to perform the update before the next logon. I'm on a Windows Vista 32-bit laptop. I'm rather new to deploying via group policy so what other information would be helpful in determining the issue? I tried a different MSI with the same results. I'm able to install the MSI using the command line and msiexec when logged into the computer, so I know the MSI is working ok at least.

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• tail -f and then exit on matching string

  - by Patrick

  I am trying to configure a startup script which will startup tomcat, monitor the catalina.out for the string "Server startup", and then run another process. I have been trying various combinations of tail -f with grep and awk, but haven't got anything working yet. The main issue I am having seems to be with forcing the tail to die after grep or awk have matched the string. I have simplified to the following test case. test.sh is listed below: #!/bin/sh rm -f child.out ./child.sh > child.out & tail -f child.out | grep -q B child.sh is listed below: #!/bin/sh echo A sleep 20 echo B echo C sleep 40 echo D The behavior I am seeing is that grep exits after 20 seconds , however the tail will take a further 40 seconds to die. I understand why this is happening - tail will only notice that the pipe is gone when it writes to it which only happens when data gets appended to the file. This is compounded by the fact that tail is to be buffering the data and outputting the B and C characters as a single write (I confirmed this by strace). I have attempted to fix that with solutions I found elsewhere, such as using unbuffer command, but that didn't help. Anybody got any ideas for how to get this working how I expect it? Or ideas for waiting for successful Tomcat start (thinking about waiting for a TCP port to know it has started, but suspect that will become more complex that what I am trying to do now). I have managed to get it working with awk doing a "killall tail" on match, but I am not happy with that solution. Note I am trying to get this to work on RHEL4.

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• Installing Tomcat on CentOS 5

  - by andybaird

  Disclaimer: I am not a server admin, I am a windows user that has lead a life of sinful installation wizards and drag and drop I'm attempting to install Tomcat on CentOS 5 hosted by a MediaTemple dedicated virtual server. I basically followed this guide: Installed jpackage and configured the yum.repo.d jpackage file to set enabled=1 Used yum to install java (yum install java) Downloaded the binary distribution of tomcat with "wget http://archive.apache.org/dist/tomcat/tomcat-6/v6.0.14/bin/apache-tomcat-6.0.14.tar.gz" set JAVA_HOME to point at the jdk location I found with "export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/" I gunzip/untar the Tomcat files and run ./startup.sh to start the Tomcat server. That is supposed to put the Tomcat server at myserver.com:8080 - however, I just get a could not contact host error when I try to browse to it (or when I try 'curl localhost:8080' from SSH) After I type ./startup.sh, here is the console output: [root@myserver bin]# ./startup.sh Using CATALINA_BASE: /root/apache-tomcat-6.0.14 Using CATALINA_HOME: /root/apache-tomcat-6.0.14 Using CATALINA_TMPDIR: /root/apache-tomcat-6.0.14/temp Using JRE_HOME: /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/ [root@myserver bin]# Is there a step I have missed here? Edit: I've now discovered by looking at the log the following error is occuring: Error occurred during initialization of VM Could not reserve enough space for object heap

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• bond0 and xen = crash

  - by Rajat

  Bonding with xen 1 - Stop all guests. Reboot dom0 after running "chkconfig xend off" and "chkconfig xendomains off". 2 - Configure bond0 by enslaving eth0 and eth1 to it. I added the below two entries to /etc/modprobe.conf. alias bond0 bonding options bond0 mode=6,miimon=100 Content of /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 USERCTL=no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none Content of /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE=eth1 USERCTL=no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none Content of /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 IPADDR= NETMASK= ONBOOT=yes BOOTPROTO=static USERCTL=no Did "modprobe bond0" and "service network restart" after that. 3 - Edit /etc/xen/xend-config.sxp Change (network-script network-bridge) To (network-script 'network-bridge netdev=bond0') 4 - Start xend. "service xend start". 5 - chkconfig xend on. 6 - modprode bond0 7 - more /proc/net/bonding/bond0 8 - Create guest images as usual and bridge it to xenbr0. about config i did for my xen kernel rhel 5.3 after i reboot the host server i get in place bond0 get pbond0 and its get disconnect from network only i ping to my vm's on the host server any one have any idea why xen bond0 is acting like that or what is solutions to come out of pbond0 to bond0.

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• How to download Vim script on the command-line?

  - by HaiYuan Zhang

  Whenever I want to install a new Vim script on the Linux server I'm working on, my typical workflow is as the following: surf the plugin's homepage in Vim online using FireXXXX download a right version of the plugin to my laptop by click some highlighted link upload the downloaded plugin from my laptop to Linux server using WinSCP which is really inconvenient. I don't know what is the magic behind this: I mean for the same hyperlink I click it in web browser. I can let you download it but use Wget plus the hyperlink in Linux command-line will end up with nothing but an error indication. Hyperlink in the web browser. Otherwise I can get the link in web browser and then use Wget or some similar tool to actually do the downloding. I try new cool Vim scripts quite ofte , so you can imagine my dismay when I have to repeat the tedious action all the time. What are some tips which can let me download the Vim scripts in a more "professional" way? Post edit: My problem is not find a tool like Wget or cURL. The problem I met is quite specific; to use these tools to download a Vim script. Let's take http://www.vim.org/scripts/script.php?script_id=30 as an example. It's the normal place where one can get the script, at least for me. But I can't find an working URL from this page that can feed to Wget.

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• Network to network VPN Centos 5

  - by Atul Kulkarni

  I am trying to follow "http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-vpn.html#s1-ipsec-net2net" I have come up with the following On local router machine: in my ifcfg-ipsec0: ONBOOT=yes IKE_METHOD=PSK DSTGW=10.5.27.1 SRCGW=10.6.159.1 DSTNET=10.5.27.0/25 SRCNET=10.6.159.0/24 DST=205.X.X.X TYPE=IPSEC I have /etc/sysconfig/network-scripts/keys-ipsec0 file in place. On Remote Machine in the cloud if have /etc/sysconfig/network-scripts/ifcfg-ipsec1: TYPE=IPSEC ONBOOT=yes IKE_METHOD=PSK SRCGW=10.5.27.1 DSTGW=10.6.159.1 SRCNET=10.5.27.124/25 DSTNET=10.6.159.0/24 DST=38.x.x.x with its respective /etc/sysconfig/network-scripts/key-ipsec1 file. The DST in both cases are NAT'd external IPs. Is that a problem? I have made changes for port forwarding as well. When I try to bring the interfaces up it gives me output "RTNETLINK answers: Invalid argument". I am confused now and don't know what more to do? Any place I can digup what parameters were wrong? I really appreciate any help I can get. Thanks and Regards, Atul.

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• How to setup Python with Lighttpd and FastCGI (like PHP)

  - by johndir

  Running Lighttpd on Linux, I would like to be able to execute Python scripts just the way I execute PHP scripts. The goal is to be able to execute arbitrary script files stored in the WWW directory, e.g. http://www.example.com/*.py. I would not like to spawn a new Python instance (interpreter) for every request (like done in regular CGI, if I'm not mistaken), which is why I'm using FastCGI. Following Lighttpd's documentation, the following is the FastCGI part of my config file. The problem is that it always runs the /usr/local/bin/python-fcgi script for every *.py file, regardless of the content of that file: http://www.example.com/script.py [output=>] "python-fcgi: test" (regardless of the content of script.py) I'm not interested in using any framework, but simply executing individual [web] scripts. How can I make it act like PHP, executing any script in the WWW directory by requesting it's path? /etc/lighttpd/conf.d/fastcgi.conf: server.modules += ( "mod_fastcgi" ) index-file.names += ( "index.php" ) fastcgi.server = ( ".php" => ( "localhost" => ( "bin-path" => "/usr/bin/php-cgi", "socket" => "/var/run/lighttpd/php-fastcgi.sock", "max-procs" => 4, # default value "bin-environment" => ( "PHP_FCGI_CHILDREN" => "1", # default value ), "broken-scriptfilename" => "enable" ) ), ".py" => ( "python-fcgi" => ( "socket" => "/var/run/lighttpd/fastcgi.python.socket", "bin-path" => "/usr/local/bin/python-fcgi", "check-local" => "disable", "max-procs" => 1, ) ) ) /usr/local/bin/python-fcgi: #!/usr/bin/python2 def myapp(environ, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return ['python-fcgi: test\n'] if __name__ == '__main__': from flup.server.fcgi import WSGIServer WSGIServer(myapp).run()

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• tail -f and then exit on matching string

  - by Patrick

  I am trying to configure a startup script which will startup tomcat, monitor the catalina.out for the string "Server startup", and then run another process. I have been trying various combinations of tail -f with grep and awk, but haven't got anything working yet. The main issue I am having seems to be with forcing the tail to die after grep or awk have matched the string. I have simplified to the following test case. test.sh is listed below: #!/bin/sh rm -f child.out ./child.sh > child.out & tail -f child.out | grep -q B child.sh is listed below: #!/bin/sh echo A sleep 20 echo B echo C sleep 40 echo D The behavior I am seeing is that grep exits after 20 seconds , however the tail will take a further 40 seconds to die. I understand why this is happening - tail will only notice that the pipe is gone when it writes to it which only happens when data gets appended to the file. This is compounded by the fact that tail is to be buffering the data and outputting the B and C characters as a single write (I confirmed this by strace). I have attempted to fix that with solutions I found elsewhere, such as using unbuffer command, but that didn't help. Anybody got any ideas for how to get this working how I expect it? Or ideas for waiting for successful Tomcat start (thinking about waiting for a TCP port to know it has started, but suspect that will become more complex that what I am trying to do now). I have managed to get it working with awk doing a "killall tail" on match, but I am not happy with that solution. Note I am trying to get this to work on RHEL4.

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• how to download vim script in command line

  - by HaiYuan Zhang

  whenever I want to install a new vim script to the linux server I'm working in , my typical workflow is as the following: surf the plugin's homepage in vim online using fireXXXX download a right version of the plugin to my laptop by click some highlighted link upload the downloaded plugin from my laptop to linux server using winscp which is really inconvenient. I don't know what is the magic behind this : I mean for the same hyperlinki click it in web browser I can let you download it but use wget plus the hyperlink in linux commandline will end up with nothing but error indication. hyperlink in web browser . otherwise I can get the link in web browser and then use wget or some similar tool to actually do the downloding. I try new cool vim scripts quite often , so you can imagin my dismay when have to repeat the tedious action all the time. So if anyone of you knows some tips which can let me downloading the vim scripts in a more "professional" way, I'll appreciate it a lot. post edit : My problem is not find a tool like wget or curl . The problem I met is quite specific to use these tools to download vim script. let's take http://www.vim.org/scripts/script.php?script_id=30 as an example, it's the normal place where one can get the script, at least for me. but I can't find an working url from this page that can feed to wget .

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• Tomcat Custom MBean

  - by Darran

  Does anyone know how to deploy a custom MBean to Tomcat? So far I`ve found this http://www.junlu.com/list/3/8871.html. I copied my jar with my MBean to Tomcat lib directory so the Custom class loader should pick it up. I then followed the instructions but I kept getting the exception below. My MBean does definitely have a public constructor. If I removed the jar from the tomcat lib directory I get the same message which suggests its not picking up my jar or my jar is being loaded after the Apache MBean Modeler is running in Tomcat. 06-Aug-2010 12:14:23 org.apache.tomcat.util.modeler.modules.MbeansSource execute SEVERE: Error creating mbean Bean:type=Bean javax.management.NotCompliantMBeanException: MBean class must have public constructor at com.sun.jmx.mbeanserver.Introspector.testCreation(Introspector.java:127) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(DefaultMBeanServerInterceptor.java:2 at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(DefaultMBeanServerInterceptor.java:1 at com.sun.jmx.mbeanserver.JmxMBeanServer.createMBean(JmxMBeanServer.java:393) at org.apache.tomcat.util.modeler.modules.MbeansSource.execute(MbeansSource.java:207) at org.apache.tomcat.util.modeler.modules.MbeansSource.load(MbeansSource.java:137) at org.apache.catalina.core.StandardEngine.readEngineMbeans(StandardEngine.java:517) at org.apache.catalina.core.StandardEngine.init(StandardEngine.java:321) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:411) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

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• WS2008 subst in Logon script does not "stick"

  - by Frans

  I have a terminal server environment exclusively with Windows Server 2008. My problem is that I need to "map" a drive letter to each users Temp folder. This is due to a legacy app that requries a separate Temp folder for each user but which does not understand %temp%. So, just add "subst t: %temp%" to the logon script, right? The problem is that, even though the command runs, the subst doesn't "stick" and the user doesn't get a T: drive. Here is what I have tried; The simplest version: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") WinShell.Run "subst T: %temp%", 2, True That didn't work, so tried this for more debug information: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") Set procEnv = WinShell.Environment("Process") wscript.echo(procEnv("TEMP")) tempDir = procEnv("TEMP") WinShell.Run "subst T: " & tempDir, 3, True This shows me the correct temp path when the user logs in - but still no T: Drive. Decided to resort to brute force and put this in my login script: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") WinShell.Run "\\domain\sysvol\esl.hosted\scripts\tempdir.cmd", 3, True where \domain\sysvol\esl.hosted\scripts\tempdir.cmd has this content: echo on subst t: %temp% pause When I log in with the above then the command window opens up and I can see the subst command being executed correctly, with the correct path. But still no T: drive. I have tried running all of the above scripts outside of a login script and they always work perfectly - this problem only occurs when doing it from inside a login script. I found a passing reference on an MSFN forum about a similar problem when the user is already logged on to another machine - but I have this problem even without being logged on to another machine. Any suggestion on how to overcome this will be much appreciated.

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• Oracle: Getting ORA-01195 and ORA-01110 when attempting resetlogs

  - by MacAnthony

  I am trying to get our database to startup. When I login to sqlplus and do a startup, I get the message: Total System Global Area 534462464 bytes Fixed Size 2215064 bytes Variable Size 331350888 bytes Database Buffers 192937984 bytes Redo Buffers 7958528 bytes Database mounted. ORA-01589: must use RESETLOGS or NORESETLOGS option for database open So I do a shutdown, startup mount (which works fine) and then run: SQL> alter database recover using backup controlfile until cancel; alter database recover using backup controlfile until cancel * ERROR at line 1: ORA-00283: recovery session canceled due to errors ORA-19909: datafile 1 belongs to an orphan incarnation ORA-01110: data file 1: '/<path>/system01.dbf' SQL> alter database open resetlogs; alter database open resetlogs * ERROR at line 1: ORA-01195: online backup of file 1 needs more recovery to be consistent ORA-01110: data file 1: '/<path>/system01.dbf' I know I've used instructions to get me past this error before, but I seem to be having trouble tracking it down. A bit of history: We wanted to refresh the data in this from another db so we attempted to do a expdb/impdb into this instance. The impdb did not complete correctly and got an end of file error message in it and hung (I still have the message in a log if it's important). Since the instance would start at this point, we decided to use the hotbackup process we have to restore the db. The hotbackups are from another server/instance. We went through the same process 2 weeks ago. At the point of recreating the control file is where we got to the issue above.

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• Replacing DropBox with: Amazon S3 + SSL + GPG/TrueCrypt + Mounting on OSX ??

  - by Matt Rogish

  So, right now we're using DropBox to share various data files around between approximately 10 Mac OS X systems. However, we already have an S3 account and everyone on the lowest DropBox plan of $10/mo seems too expensive. So, I am contemplating something that would allow us to replace DropBox with our own home-grown solution. We are all fairly technical people and/or smart enough to follow some steps, so if it's not as "user friendly" as DropBox we're all comfortable with that. There are plenty of docs out there that have bits and pieces of what I want but some of the tools don't seem to fit the requirements: Transport security via SSL to the bucket Encryption of bucket contents Bi-directional syncing Most of the scripts I can find on the internet use "duplicity" which appears to fail #1 (it doesn't look like duplicity supports SSL to S3 - the docs don't state but the protocol looks plain old http http://www.nongnu.org/duplicity/duplicity.1.html#sect6 ) Many scripts use gpg to encrypt files. This seems like it could work, however I have to make sure that each OSX client is able to use the same key to encrypt and decrypt files (key management is left to me to manage). Finally, most of the scripts use one-way replication, e.g. using Amazon S3 as a simple backup store. As we'd be using Amazon S3 as the "repository" they fail this one. Whew. So, I'd love a single tool that does this but after an exhaustive search I don't think one exists. I'd be happy just knowing which tools out there can fulfill my 3 requirements, after that I can stitch together the rest. Any thoughts? THANKS!

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• How to turn off Tomcat logging in Eclipse?

  - by kirdie

  I develop a Vaadin project in Eclipse that I start through Tomcat 6 which gets started directly by Eclipse. Tomcat prints an enormous amount of log messages though on each start which makes it hard to see the output of my own Application. I have already replaced all log levels in tomcat6/conf/logging.properties by WARNING (e.g. java.util.logging.ConsoleHandler.level = WARNING) but I still get many INFO messages. How can I turn this off or restrict the log messages to WARNING? An example of the messages Okt 26, 2012 12:16:36 PM org.apache.catalina.core.AprLifecycleListener init INFO: Loaded APR based Apache Tomcat Native library 1.1.24. Okt 26, 2012 12:16:36 PM org.apache.catalina.core.AprLifecycleListener init INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true]. Okt 26, 2012 12:16:36 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:saim' did not find a matching property. Okt 26, 2012 12:16:37 PM org.apache.coyote.http11.Http11AprProtocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 Okt 26, 2012 12:16:37 PM org.apache.coyote.ajp.AjpAprProtocol init INFO: Initializing Coyote AJP/1.3 on ajp-8009 Okt 26, 2012 12:16:37 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 879 ms Okt 26, 2012 12:16:37 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Okt 26, 2012 12:16:37 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.32 Okt 26, 2012 12:16:37 PM org.apache.coyote.http11.Http11AprProtocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Okt 26, 2012 12:16:37 PM org.apache.coyote.ajp.AjpAprProtocol start INFO: Starting Coyote AJP/1.3 on ajp-8009 Okt 26, 2012 12:16:37 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 568 ms

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• Setting up xpra for client use in OS X

  - by Jonathan

  I've been trying to get xpra to run on OS X for the last few days to connect to my Ubuntu server. Note that there's a GUI for it called shifter, but that (at least on OS X) is still far too buggy. For those who don't know what xpra is, if you know what screen is, it's like screen for GUI X Windows apps tunneled over ssh. You can render a remote X app locally so it's faster than sending a series of compresses screen shots (like VNC), but with xpra you can disconnect and reconnect on different computers. To get the basic functionality you can just type "ssh -X server.location" and any GUI app you open from the command line will open locally. I've been able to get xpra to build by doing the following: Download pari-all-0.0.6.tar.gz from the xpra site listed under upstream and untar it. Issue the following Mac Ports command (Dependencies thanks to RogBlog): sudo port install python25 python26 py26-pyrex py26-gtk xorg-libXtst py25-gobject py25-gtk py25-nose py26-nose xorg-libXdamage xorg-libXcomposite xorg-libXtst xorg-libXfixes In the upstream list of v0.0.06 patches (NOT 0.0.8pre!) on the xpra site listed above, download mswindows-conditional-pyrex.patch. Open the patch with your favorite text editor and change the single occurrence of "win" in it to "darwin". Apply the patch to setup.py. Run do-build in the command line. Now where I'm stumped: how do I run xpra? The build produces a sub directory called install/bin in which xpra is located, but when I try to run it I get the following error: Traceback (most recent call last): File "./xpra", line 4, in import xpra.scripts.main ImportError: No module named xpra.scripts.main There is a file called main.py under xpra/scripts, but I don't know any python and I'm not sure if this is what it's looking for, and what to do with it even if it is. My goal is to set up xpra so I can install it into /usr/bin (or some other common path for executables) and execute it whenever I please. What do I do next?

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