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Network Security Secure-Shell
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SSH tunelling

from [Filip Fafara] Network Security [Permanent Link]
Subject: SSH tunelling
Date: Fri, 10 Sep 2004 23:59:12 +0200 (CEST) 
Hi,
I have a proble and I was hoping You guys could help me. I have to
restrict a user on a sshd server
to be able to create only one specific tunnel. It looks like that:

clients-------sshd server---------app server

All clients share one user on sshd server and I don't want them to be able
to create tunnels to ports or hosts other than specific port
on app server. Is such restriction possible to achieve on
a ssh-layer, for example in sshd.conf, or ~/.ssh or do I have to go and
play with the firewall?
I would really appreciate any advices and hints.

Filip
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