How to Secure Your Server is a decent start but also make sure you follow Using Fail2ban to Secure Your Server - A Tutorial
Your Host:
Needles 2001: Curtis
10 Random Photos:
Telluride 2006: Mountain Biking
Stairs Up Seven Falls
Canyoneering 2002: 43: Overhang with Ellen
Mendocino 2006: California Coast 3
Vedauwoo May 2000: Ames Monument
Ouray 2007: Local Buck
Beijing 2001: Dinner View 3
Mendocino 2006: Jane and Founders Tree
KBCO 2002: Harry Potter Krishna's Going Down
NYC 2002: Essex House