Nice - Lightweight - Protection to linux box

You can do more than expected with this utility.
Here i am using SSH and FTP setting to protect my bandwidth from script kidies.

Fail2ban is written in Python, thus no compilation is required. You can even run Fail2ban without installing it.
Following is the installation procedure for the centOS.

yum install fail2ban

Enable fail2ban during system startup. and start it

chkconfig --levels 235 fail2ban on
/etc/init.d/fail2ban start

Configuration file is named as jail.conf located at “/etc/fail2ban”
Following Options you might consider to setup before proceed.

ignoreip - you might be consider setting your known ip in this section
bantime - time specified here is in seconds
maxretry - ban after any ip cross this limit.
filter - specify filter file e.g. /etc/fail2ban/filter.d
action - specify action file e.g. /etc/fail2ban/action.d
logpath - where fail2ban look for log