Hey Tom 
Here's a small one from me.. supporting/securing your views further...
Securing SSH (Secure Shell) :
It's a protocol which supports
logging into a remote system or executing commands on a remote system, using an encrypted communication between the two systems. Hence securing it; itself is a method of securing the server
By default SSH runs on version 1 and allows direct root access to the system. In order to secure the server steps should be taken to
disable direct root access within the sshd_config file and any user should be
forced to use only protocol 2.
Protocol 2 is more secure than 1.
Here's a simple procedure on getting this done quickly:
Quote:
1) vi /etc/ssh/sshd_config
2) Change Protocol 2,1 to Protocol 2
4) PermitRootLogin yes = no
5) Restart SSHD: /etc/rc.d/init.d/sshd restart
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Note: Please make a backup of any files you modify, incase you change anything unexpectedly, restoring the system to the original state becomes easier