I have the following entry in my .ssh/config file:
Host myhost Hostname localhost User me ServerAliveInterval 30 ProxyCommand ssh -q external-relay /usr/bin/nc -w 90 localhost 9889
Very simple, it allows me to access
myhost from outside its NATed network, by bouncing off
Most of the times I only want to SSH to
myhost, without creating any SSH tunnels, but some other times I want to create various tunnels, for different purposes.
Nowadays I simply manually append the
-L tunnel entries when I ssh to
myhost but it's becoming increasingly difficult to remember which sets of ports I need for which purpose.
I could just add those custom port forwarding commands as aliases, but what I'd really like is to have separate named entries in my
.ssh/config file that basically create the connection to
myhost and add the required tunnels, but I don't want to duplicate the whole
myhost config everytime, because if/when I change the
external-relay, I don't want to have to remember to change it in every entry that used it.
Is there a way to create an entry that inherits fom the
myhost entry, and simply appends the required
LocalForward directives for that particular tunnel case?