tunneling ports

[Damien Fleuriot]

On 13 January 2017 at 11:13, Christoph Kukulies <kuku at kukulies.org> wrote:
> I don't know if this could be easily achieved, but imagine the situation that you are in a network and the only ports being allowed for outgoing traffic into the Internet are ports 80 and 443.
>
> Now you would like to access mailservers in the Internet to read your Email. Ports 993, 587, 465,25. 22 wiuld be desirable,too.
>
> What I have is an outside server into which I could tunnel.
>
> Is there any piece of software allowing me to divert ports into the outside server through some kind of server?
>


Well well... somebody's trying to circumvent their netadmin's
firewalls are they not ?

It is not my place to question your motives, all I can offer is
technical advice along with a warning.

Warning first, these restrictions are in place for a reason,
circumventing them puts both your employer's infrastructure and your
work contract at risk.

Technical advice now, get an OpenSSH server listening on port 443, and
tunnel your ports over SSH.
>From that point, you can do whatever you like.

A quick google search yields the following examples :
http://blog.trackets.com/2014/05/17/ssh-tunnel-local-and-remote-port-forwarding-explained-with-examples.html



If your netadmin has somewhat advanced measures in place such as a
transparent SSL proxy, you will get caught.
And if I caught you doing that, I'd nuke your account on the spot.
Just FYI ;)