Setting up an SSH proxy
I realize I'll need to open a port on the firewall on the proxy, and I think the code for that would be:
-A INPUT -p tcp -m state --state NEW --dport 5252 -j ACCEPT
If the port used is 5252.
That's the same as what's used for port 22 for SSH.
I think the main change would be using the domain of the Linode instead of localhost and adding the firewall rule.