Today Google released a CLI interface for most of it's online services.
This has great potential for creating a lot of CLI fun with the services but first we need
to install it.

Installation is pretty simple on a Fedora system. It requires Python which is already
install on Fedora systems and has only one simple dependency
So : 

This is a list for a minimal install of CentOS 5 (but applies equally to RHEL or other RHEL derivatives).
Disabling unneeded services makes your system more secure as well as reducing server load.

After performing a minimal install run the following command to see which services are already running

chkconfig --list |grep "3:on" |awk '{print $1}'

and to check the amount of memory used by each of those services

Fail2Ban is a great utility to protect your server from 'script kiddies' attempting to do brute force attacks against your exposed services.

Install Fail2ban according to the installation instructions. If you are using CentOS fail2ban rpms can be found in the rpmforge repo.(even though they tend to be one or two versions back)

After installation we need to configure fail2ban for Plesk's own settings.

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