SSH access to machine behind router

[justinw.5607516 at bloglines.com]

On Fri, 4 Mar 2005 06:49:14 +0100 R. wrote:
> RH> I had a similar setup but
I recently turned off the port forwarding
> RH> (my NAT box calls it a "virtual
server") because of dictionary
> RH> password attacks from the outside world.

> 
> Running sshd on a non-default port greatly reduces this problem...




There's also port knocking for the really paranoid:

http://www.soloport.com/iptables.html