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Thread ID: 54772 2005-02-22 00:27:00 Getting past the Firewall via SSH Chilling_Silence (9) Press F1
Post ID Timestamp Content User
327274 2005-02-22 00:27:00 Greetings,

Im able to ssh out in to my home PC via port 22.
This is open at the firewall here and its great
I can then Tunnel VNC out via SSH, so I can view my home desktop

Not so with my mate.
He's got a no-ip.com account and it wont connect, even when he tries directly going to that IP?!
I can ssh into my home PC and then SSH into his home PC, but we dont wanna have to do that.

Any ideas what may be preventing it? Im running Gentoo, he's running Cygwin on WinXP

Cheers


Chill.
Chilling_Silence (9)
327275 2005-02-22 05:17:00 Is he using the no-ip auto update program? E|im (87)
327276 2005-02-22 07:30:00 Cached DNS records pointing to the wrong IP address? ninja (1671)
327277 2005-02-22 08:07:00 No, because when we try and connect to that IP directly (ping it from my place) it doesnt let it

So:
I can connect to my place
I _dont_ use the NO-IP Dynamic Update Client (DUC)
I can then connect via my house to his, using either the no-ip.com addy or the IP
I cant connect from work to his place directly, using either an IP or a DNS Name (no-ip.com name).


Chill.
Chilling_Silence (9)
327278 2005-02-22 08:07:00 Oh wait.. I _can_ however connect to his PC from work on port 80 (his router).

Just not on port 22?
Chilling_Silence (9)
327279 2005-02-22 08:29:00 Oh wait.. I _can_ however connect to his PC from work on port 80 (his router).

Just not on port 22?

Firewall, NAT?

Would a new mate solve the problem :D
Murray P (44)
327280 2005-02-22 09:59:00 What do you mean by "firewall, NAT?"?

Ive got enough mates at work... ;)

Funnily enough this is one of the few times Ive offered to help somebody there with a PC problem... Look what I get myself in to :p
Chilling_Silence (9)
327281 2005-02-24 03:18:00 Who administers the firewall you are behind? Can you verify that the rule to allow port 22 out allows connections to anywhere?
Does the firewall at his house allow ssh connections from the work IP address?
BIFF (1)
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