Fail2Ban - CentOS

Well a couple of days ago I had to setup fail2ban on a centos 5.2 server. Here is a quick how to:

First you need to install the program, you can do it with yum:

yum update
yum install fail2ban

Set it to startup automatically with the system:

chkconfig --levels 235 fail2ban on


Ok now just edit /etc/fail2ban/jail.conf

enable the jails, and be sure to set the to and from addresses (as you do want to get the reports).

To start it up without a reboot:

/etc/init.d/fail2ban start

So now you have everything setup.

For more details please see:
http://www.fail2ban.org