Telnet / Firewall question

March 6, 2004 4:37 AM

I'm behind a university proxy firewall and wanting to access ports that are blocked from direct access through the firewall. I was wondering if there are any telnet clients out there that have HTTP-proxy capabilities with authication (user/password) as well.
posted by teem to Computers & Internet (4 answers total)

If I understand what you want, you might want to check out the possibility of using ssh tunnels.

For windows (assuming that's what you use), PuTTY is a good SSH/telnet client that supports HTTP-auth.
posted by thebabelfish at 4:56 AM on March 6, 2004

but be aware that you need something at the other end. if you're connecting to a server on port X, but X is blocked, then you can use ssh so that when a local program connects to X, ssh bounces it to Y. but then you need to bounce back down from Y to X the other side of the firewall. this works fine if you have access to a shell on the server, because ssh does the right thing on the server. but if you're hoping to magically connect to a server that is closed to you apart from port X then you're out of luck (unless you bounce of another machine).

does that make sense? am i missing something obvious?
posted by andrew cooke at 8:39 AM on March 6, 2004

PuTTY supports telnet and SSH connections through HTTP proxies that support HTTP CONNECT.
posted by zsazsa at 11:43 AM on March 6, 2004

Oops. Didn't see babelfish's answer above.
posted by zsazsa at 12:23 PM on March 6, 2004