Howto disable SSH local port forwarding?
Fresh3 days ago
Mar 15, 202671007 viewsConfidence Score0%
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Problem
I have a server running Ubuntu and the OpenSSH daemon. Let's call it S1. I use this server from client machines (let's call one of them C1) to do an SSH reverse tunnel by using remote port forwarding, eg : On S1, I use the default sshd_config file. From what I can see, anyone having the right crede…
Error Output
ssh -R 1234:localhost:23 login@S1
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Fix for: Howto disable SSH local port forwarding?
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Another solution would be to only allow port forwarding to specififc users: From SSH: The definitive guide Port forwarding can be globally enabled or disabled in sshd. This is done with the serverwide configuration keyword AllowTcpForwarding in /etc…
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