Linux security HowTo - Linux / Unix Q & A from nixCraft

What Is SELinux?

last updated December 6, 2012 in SELinux

What is SELinux? Why should I use SELInux on my CentOS or Red Hat Enterprise Linux server running on IBM hardware?

last updated October 19, 2013 in CentOS, Iptables, RedHat and Friends

How do I disable firewall on CentOS or Red Hat Enterprise Linux server version 5.x/6.x running on my HP micro server?