This is a step-by-step guide to install Asterisk & FreePBX using an OpenVox ISDN cards

Install required packages

Add rpmforge repository
rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm

Update the system
yum update

The first step to add filtering for an FTP servere is to add antivirus filtering.
We will need to modify the setup procedure a bit to apply the appropriate patches :

So, download the patch source
wget http://www.thrallingpenguin.com/resources/mod_clamav-0.7.tar.gz
tar xzvf mod_clamav-0.7.tar.gz
cp mod_clamav-0.7/mod_clamav.* proftpd-1.3.1/contrib

Apply the required patch:
cd proftpd-1.3.1
patch -p1 < ../mod_clamav-0.7/proftpd.patch

DrQueue is a powerful open source distributed render farm manager that I happened to set up
to manage a blender render farm while I was administering a training session for TOSMI.

A render farm consists of a master machine that controls what jobs are executed and a number of
slave machines that do the actual tasks. A detailed review can be found here

There are situations where you need to quickly check if the DNS records for a particular site
have been updated in the public DNS servers after you make certain changes. The following is a simple script that does just that :

1. First create a file named digsite.servers containing a list of public DNS servers against whom you want to check your DNS records.
2. Create a script file digsite.sh as follows :
   
   

servers=""

checkServer()
{
  c1=0
  c2=0
  set="NOT SET"