December 2011 09
How to install Tomcat 6 on RHEL 6
Posted By : cybergavin

Installing software on RHEL platforms using yum is straightforward. However, based on your environment, there could be a few more steps to get there. So, here’s what I did to install Tomcat 6 on RHEL

December 2011 03
How to modify a RHEL cluster configuration file
Posted By : cybergavin

Red Hat Enterprise Linux (RHEL) cluster configuration file is /etc/cluster/cluster.conf NOTE: Red Hat discourages direct editing of the cluster configuration file and recommends using the system-config-cluster GUI. However, if you need to edit the file,

October 2011 05
How PAM works
Posted By : cybergavin

Pluggable Authentication Modules (PAM) is a framework used for authentication. Typically, most Linux distros come with PAM installed by default. PAM can be powerful if used well and it’s important to understand how PAM works.

September 2011 22
How to build AMP from source on RHEL 5.7
Posted By : cybergavin

Typically, building a LAMP system on RHEL may be performed by yum installs. However, I wanted specific options built-in for my AMP and I wanted to locate the software in specific locations. hence, I opted

January 2011 12
Cannot grep UTF-16 Unicode files
Posted By : cybergavin

Problem: Microsoft SQL Server error logs had I/O errors in them. After transferring 4 months’ logs over to a UNIX machine to analyze them with grep/awk/sed, the grep command did not return any output when

February 2010 01
Runaway process causes 100% disk utilization
Posted By : cybergavin

Problem: A Solaris 9 mountpoint was 100% utilized (as per “df”) and no new files could be added. df output: cybergavin@myhost:/dashboard> df –h /dashboard Filesystem             size   used  avail capacity  Mounted on /dev/vx/dsk/A19278-S01-7uitx-dg/dashboard                         16G    16G  

October 2009 17
How to determine the Linux distribution
Posted By : cybergavin

If you’re given access to a Linux machine without being told the Linux distribution being used, there are a couple of ways by which you can determine the Linux distribution OPTION 1: Use the lsb_release