Can't connect to server via ssh

R.S. · 01-14-2006, 03:39 PM

Problem:
SSH is running and firewall is not blocking it. I can connect from local network to server.
When i'm connecting from outside i get: "Connection refused"

External static network ip: 82.135.200.200
Server ip: 192.168.0.33
Lan ip: 192.168.1.1...

My server is connected to dsl modem which makes me local network from 82.135.200.200 to 192.168.0.33. So i can connect to ssh using 192.168.0.33 or 192.168.1.1 on port 22

But how to connect from outside using 82.135.200.200?

Linux RH 8.0

Thenks.

zmanea · 01-14-2006, 04:56 PM

Is the DSL router a firewall? If so you will need to port forward 22 to the Linux box

Sir_Limpalot · 01-14-2006, 05:17 PM

Is the ssh-daemon you're trying to connect to on the firewall or on a machine behind the firewall?
If it's on a system behind the firewall you'll need to forward port 22 to the correct internal ip like so:

iptables -A PREROUTING -i <external interface> -p tcp -m tcp --dport 22 -j DNAT --to-destination <internal ip>:22

(Sorry if you think it's a stupid question, but it wouldn't be the first time anyone made that mistake)

Hope this helps...

R.S. · 01-15-2006, 10:35 AM

PREROUTING is not working..

So i understand. My modem is configured to work as router, but i can set up it to work us bridge. There will be no problem.

Sir_Limpalot · 01-15-2006, 04:00 PM

Most routers can be set up to forward ports and ssh is not very hard in this regard, check the web-interface on your router....