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Old 03-07-2008, 04:35 AM   #1
horacioemilio
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Registered: Dec 2007
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Connect from home to a computer inside an "external" LAN using port forwarding


Hi,

at work we have a LAN, isolated from external but from a ssh proxy.

At work I use at my computer some program which for license reasons connects to a license server on another computer through port 1775.

From home, it does not work. From home I can only connect to a "ssh proxy" machine through port 24. Then and through ssh, I can connect to the rest of machines.

I heard about ssh port forwarding. So I wonder if this could be applied in my case, so I could connect from home to the licenser server, port 1775, in a machine which is inside work's LAN.



Thanks in advance.
 
Old 03-07-2008, 04:36 AM   #2
acid_kewpie
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this has nothing at all to do with programming. moved to Linux - Networking. please try to post in the right forum in future. thanks.

ssh tunneling may be of use to you, but only if you can specify the ip of the "remote" server. by default you would need to change it from the real ip to 127.0.0.1:1755, which ssh can then intercept an throw at the real box at the other end. if you can't change it then there is a possibility of use an iptables rule to do a dnat to point it back at yourself, but that's going to get messy.

so for the basic ssh tunnelling you'd be doing

sshd -L 1755:192.168.12.34:1755 user@remote.ssh.server.com

Last edited by acid_kewpie; 03-07-2008 at 04:39 AM.
 
  


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