Hi all,
I'm trying to connect to a remote host to do some simple support. The
remote host is behind a NAT/firewall and it's not possible to ask the
admin to tunnel a port. The remote host has a live person working on it
(a linux newbie).
The question is, can the remote user type in some command in their
terminal to connect (SSH?) to my network - and thereby allow me to get a
terminal on the remote machine. I think this is possible with a reverse
SSH tunnel - but I don't really want to allow the remote user any access
to my system. It's probably possible to set up some chroot or otherwise
locked out environment (/bin/nologin ?), but I want to first check if
there are any simpler options.
A better question: is it possible to establish an SSH connection if both
networks have NAT/firewalls that can't be easily controlled? I know some
programs (e.g. skype) are able to traverse NATs by various means (UDP).
Can some tunnel of this sort be established so that an SSH connection
can be established on top of that?
Thanks!
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