Albertech.net » Linux http://albertech.net Guides and Reviews for WordPress, PHP, MySQL, Apache, CMS Systems, jQuery, and other Technologies Tue, 31 Jan 2012 17:31:44 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Installing nginx with PHP, MySQL, and WordPress in Fedora http://albertech.net/2011/04/installing-nginx-with-php-mysql-wordpress-in-fedora/ http://albertech.net/2011/04/installing-nginx-with-php-mysql-wordpress-in-fedora/#comments Fri, 01 Apr 2011 17:31:47 +0000 admin http://albertech.net/?p=663 Why switch to nginx? If you have a site with heavy CPU and memory load in Apache, then nginx is a great choice. I recently made the switch to nginx and have noticed a reduction in CPU and memory usage. Nginx loads static content very fast and efficiently. Here's a graph of my nginx server load test. Courtesy of LoadImpact's free load testing service. The user load time on my server is minimally impacted with 50 clients viewing the site simultaneously.]]> http://albertech.net/2011/04/installing-nginx-with-php-mysql-wordpress-in-fedora/feed/ 0 FIX: Fedora SELinux permissions for PHP file upload http://albertech.net/2011/03/fix-fedora-selinux-permissions-for-php-file-upload/ http://albertech.net/2011/03/fix-fedora-selinux-permissions-for-php-file-upload/#comments Wed, 02 Mar 2011 23:27:41 +0000 admin http://albertech.net/?p=643 Command to set permissions: chcon -R -t httpd_sys_rw_content_t [Name of Folder] You can check the SELinux permissions via the following command: ls -halZ]]> http://albertech.net/2011/03/fix-fedora-selinux-permissions-for-php-file-upload/feed/ 1 Issues with Debian Lenny and Tomcat 5.5 http://albertech.net/2010/11/issues-with-debian-lenny-and-tomcat-5-5/ http://albertech.net/2010/11/issues-with-debian-lenny-and-tomcat-5-5/#comments Tue, 16 Nov 2010 01:00:21 +0000 admin http://albertech.net/?p=520 Is your Debian install of Tomcat 5.5 not working with your Webapp? Just a heads up for anyone with problems trying to get webapps working with Debian. I highly recommend installing Tomcat 6.0 from source. It helped clear a number of issues for me. Debian only supports Tomcat 5.5 in their package management system. I could have gone with unstable to get Tomcat 6.0, but I prefer not to deal with their folder organization layout (see below) Here are a few resources I've used to install Tomcat 6.0 in Debian Lenny.
  1. How to Install Tomcat 6 in Debian Lenny. This is an excellent step-by-step tutorial. A+ in my book.
  2. http://www.mysql.com/downloads/connector/j/ Connector/J, MySQL JDBC Connector download.
  3. http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html. Tomcat 6.0 configuration with MySQL Connector/J JDBC.
]]> http://albertech.net/2010/11/issues-with-debian-lenny-and-tomcat-5-5/feed/ 1 Fix: Webmin error “This Webmin module depends on the module phpini” http://albertech.net/2010/11/fix-webmin-error-this-webmin-module-depends-on-the-module-phpini/ http://albertech.net/2010/11/fix-webmin-error-this-webmin-module-depends-on-the-module-phpini/#comments Tue, 09 Nov 2010 17:49:42 +0000 admin http://albertech.net/?p=514 http://www.webmin.com/standard.html and extract the folder to your Webmin system folder. In Debian, its located in /usr/share/webmin/   This should also apply to any other Webmin packages that are missing from your system.]]> http://albertech.net/2010/11/fix-webmin-error-this-webmin-module-depends-on-the-module-phpini/feed/ 0 Fix: installing scponly on Debian 5.0 http://albertech.net/2010/10/fix-installing-scponly-on-debian-5-0/ http://albertech.net/2010/10/fix-installing-scponly-on-debian-5-0/#comments Wed, 06 Oct 2010 00:37:51 +0000 admin http://albertech.net/?p=470
  • "failed WinSCP compatibility mode" error message
  • WinSCP closes unexpectedly after authenticating
  • Connection failure after successful authentication
  • Client logs two attempts to connect to the /home/username home directory before failing
    • The fix is to remove scponly package in Debian and install a newer version from source code. Download the scponly source at:     http://albertech.net/2010/10/fix-installing-scponly-on-debian-5-0/feed/ 0     Disable autostart of MySQL in Debian and Ubuntu http://albertech.net/2010/07/disable-autostart-of-mysql-in-debian-and-ubuntu/ http://albertech.net/2010/07/disable-autostart-of-mysql-in-debian-and-ubuntu/#comments Wed, 07 Jul 2010 17:39:43 +0000 admin http://albertech.net/?p=427 sysv-rc-conf (Install it using aptitude or apt-get install)]]> http://albertech.net/2010/07/disable-autostart-of-mysql-in-debian-and-ubuntu/feed/ 0 Amanda Backup: Client installation on Debian http://albertech.net/2010/01/amanda-backup-client-installation-on-debian/ http://albertech.net/2010/01/amanda-backup-client-installation-on-debian/#comments Wed, 27 Jan 2010 20:28:14 +0000 admin http://albertech.net/?p=356 http://albertech.net/2010/01/amanda-backup-client-installation-on-debian/feed/ 0 SFTP/ScpOnly: Fix for WinSCP Error http://albertech.net/2009/11/sftp-scponly-fix-for-winscp-error/ http://albertech.net/2009/11/sftp-scponly-fix-for-winscp-error/#comments Mon, 23 Nov 2009 22:26:02 +0000 admin http://albertech.net/?p=321 http://albertech.net/2009/11/sftp-scponly-fix-for-winscp-error/feed/ 0 Debian: Installing Mailman with Exim4 http://albertech.net/2009/09/debian-installing-mailman-with-exim4/ http://albertech.net/2009/09/debian-installing-mailman-with-exim4/#comments Tue, 29 Sep 2009 21:03:44 +0000 admin http://albertech.net/?p=283 http://albertech.net/2009/09/debian-installing-mailman-with-exim4/feed/ 1 awstats: Import old log files http://albertech.net/2009/09/awstats-import-old-log-files/ http://albertech.net/2009/09/awstats-import-old-log-files/#comments Thu, 03 Sep 2009 16:26:34 +0000 admin http://albertech.net/?p=256 http://albertech.net/2009/09/awstats-import-old-log-files/feed/ 2 WordPress MU: Limit access to certain blogs http://albertech.net/2009/07/wordpress-mu-limit-access-to-certain-blogs/ http://albertech.net/2009/07/wordpress-mu-limit-access-to-certain-blogs/#comments Thu, 02 Jul 2009 20:22:45 +0000 admin http://albertech.net/?p=203 http://albertech.net/2009/07/wordpress-mu-limit-access-to-certain-blogs/feed/ 0 Debian: Fix for Mailman server that won’t start http://albertech.net/2009/07/debian-fix-for-mailman-server-that-wont-start/ http://albertech.net/2009/07/debian-fix-for-mailman-server-that-wont-start/#comments Thu, 02 Jul 2009 19:49:18 +0000 admin http://albertech.net/?p=200 mailmanctl(2801): PID unreadable in: /var/run/mailman/mailman.pid mailmanctl(2801): [Errno 2] No such file or directory: '/var/run/mailman/mailman.pid' mailmanctl(2801): Is qrunner even running? If you try to restart mailman /etc/rc2.d/S20mailman restart and get the same error, then you need to check whether you have a "mailman" list on your server. To install mailman list, follow this resource: http://www.askdavetaylor.com/why_is_mailman_complaining_site_list_is_missing_mailman.html After installing the mailman list, you can try restarting the mailman qrunner service to see if it works. /etc/rc2.d/S20mailman start]]> http://albertech.net/2009/07/debian-fix-for-mailman-server-that-wont-start/feed/ 0 Debian: fixing GPG error on apt-get update http://albertech.net/2009/06/debian-fixing-gpg-error-on-apt-get-update/ http://albertech.net/2009/06/debian-fixing-gpg-error-on-apt-get-update/#comments Tue, 02 Jun 2009 22:14:39 +0000 admin http://albertech.net/?p=179 If you get a GPG error when doing an apt-get update, here's the quickest way to fix it.The error message looks similar to:
    W: GPG error: http://security.debian.org etch/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY XXXXXXXXXXX: There is no public key available for the following key IDs: W: You may want to run apt-get update to correct these problems
    By default, it says "You may want to run apt-get update to correct these problems". The problem is, apt-get update doesn't fix the keys automagically. To fix, you will need to update the debian keyring by ... ]]>     http://albertech.net/2009/06/debian-fixing-gpg-error-on-apt-get-update/feed/ 1     Debian on VMWARE: Installing VMWare Tools http://albertech.net/2009/05/debian-on-vmware-installing-vmware-tools/ http://albertech.net/2009/05/debian-on-vmware-installing-vmware-tools/#comments Fri, 15 May 2009 21:54:55 +0000 admin http://albertech.net/?p=164 Why install VMWARE Tools? Improved display support with SVGA driver Cut and paste from host onto the VMWare guest Automation of guest operating system commands Sync time Shrinking disk space Startup and shutdown scripts In order to install VMWARE tools on Debian, you will need to make sure you have the package "linux-headers-[kernel version]" installed. If not, you will get a prompt during the configuration asking for the path of the C header files. To find the version of your kernel, type in: uname -a It should say something like Linux infomine 2.6.26-2-amd64 (with your current CPU architecture at the end) **** NOTE: Do this at your own risk. If you put the ... ]]> http://albertech.net/2009/05/debian-on-vmware-installing-vmware-tools/feed/ 0 Debian on VMWARE: Troubleshoot Network http://albertech.net/2009/05/debian-on-vmware-troubleshoot-network/ http://albertech.net/2009/05/debian-on-vmware-troubleshoot-network/#comments Tue, 12 May 2009 00:50:14 +0000 admin http://albertech.net/?p=162 http://albertech.net/2009/05/debian-on-vmware-troubleshoot-network/feed/ 0 Debian: Broken grub after Lenny upgrade http://albertech.net/2009/05/debian-broken-grub-after-lenny-upgrade/ http://albertech.net/2009/05/debian-broken-grub-after-lenny-upgrade/#comments Fri, 01 May 2009 10:49:17 +0000 admin http://albertech.net/?p=156 http://albertech.net/2009/05/debian-broken-grub-after-lenny-upgrade/feed/ 1 Amanda Backups: Exclude.gtar http://albertech.net/2009/04/amanda-backups-excludegtar/ http://albertech.net/2009/04/amanda-backups-excludegtar/#comments Thu, 30 Apr 2009 22:39:57 +0000 admin http://albertech.net/?p=152 http://albertech.net/2009/04/amanda-backups-excludegtar/feed/ 0 KDE: How to fix “No greeter widget plugin loaded” error http://albertech.net/2009/04/kde-how-to-fix-no-greeter-widget-plugin-loaded-error/ http://albertech.net/2009/04/kde-how-to-fix-no-greeter-widget-plugin-loaded-error/#comments Tue, 14 Apr 2009 21:38:35 +0000 admin http://albertech.net/?p=142 http://albertech.net/2009/04/kde-how-to-fix-no-greeter-widget-plugin-loaded-error/feed/ 23 Analyzing large web log files http://albertech.net/2009/02/parse-large-logfile/ http://albertech.net/2009/02/parse-large-logfile/#comments Fri, 20 Feb 2009 05:11:00 +0000 admin http://albertech.net/?p=91 The fastest way to trim down large web log files is through UNIX/Linux shell. Large files exceeding 1 GB (millions of lines of logs) are not easily editable using a GUI interface, so the fastest way is to parse them is via command line. You can trim them down according to a time range, remove internal requests from within the company, and remove bots/crawlers data from the log files. For instance, I have a 4GB log file with about two years worth of info (2007-2009) in there. What if I just wanted the logs from 2008? First, run the "head -10" command ... ]]> http://albertech.net/2009/02/parse-large-logfile/feed/ 0 Awstats setup in Debian http://albertech.net/2009/01/awstats-debiansetup/ http://albertech.net/2009/01/awstats-debiansetup/#comments Mon, 26 Jan 2009 03:05:19 +0000 admin http://albertech.net/?p=65 Installing awstats in Debian with GeoIP caching First, use apt-get to get the software: apt-get install awstats Configure awstats: Instead of using the awstats configure tool (written in Perl), manually add in the awstats Apache configuration. Using the tutorial from debuntu, make a file inside your apache config folder called awstats.conf with the following lines. Alias /awstatsclasses "/usr/share/awstats/lib/" Alias /awstats-icon/ "/usr/share/awstats/icon/" Alias /awstatscss "/usr/share/doc/awstats/examples/css" Options ExecCGI -MultiViews +SymLinksIfOwnerMatch Inside the Apache2.conf file (or virtual host conf file inside the sites-available folder) add this to the end of the file: Include /etc/apache2/awstats.conf Next, copy the /usr/lib/cgi-bin/awstats.pl file to the apache cgi-bin folder. If you have virtual hosts enabled, copy it to ... ]]> http://albertech.net/2009/01/awstats-debiansetup/feed/ 0