[clug] secure remote access method

[jm]

With the mc-root discussion I thought I'd start a thread to ask a few 
questions about secure remote access to a home server. Given that we all 
like to have remote access to our home machines so that we can tweak the 
occassional setting or such while we're not busy or something similar. 
What are some thoughts out there on how best to do this? There's the 
classic ssh and ssh with port knocking. But, as someone pointed out, 
dealing with unfriendly firewalls when your traveling can kill this 
idea, eg by blocking port 22? A lot of firewalls out there are now doing 
protocol enforcement so you can't put ssh and port 80 because it doesn't 
look like http. What other methods are out there?

Jeff.