How to secure a new server (Linux)

1. Install chkrootkit
2. Install rkhunter
3. Install Firewall
3.1. Install apf / bfd
3.2. Install csf (for cPanel/WHM servers only)
4. Securing /tmp
5. Remove all insecure packages
6. Script to Monitor Server load
7. Secure ssh
8. Prevent upload of Exploits
9. Disable InSecure Commands
10. Install Email alert script for Root Logins
11. Install AIDE