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rponte/ssh_tunnel.sh

Last active September 26, 2023 23:04
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Opening a SSH tunnel
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ssh_tunnel.sh
# ssh -L <local_port>:<remote_ip>:<remote_port> <user>@<gateway_ip>
ssh -L 1433:192.168.1.4:1433 owner@google.com
# or if you want to run in background without tty
ssh -f -N -T -L 8080:localhost:80 owner@google.com
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rponte commented Sep 2, 2013

More informations,
http://chamibuddhika.wordpress.com/2012/03/21/ssh-tunnelling-explained/

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rponte commented Feb 13, 2015

More information about the arguments,
http://unix.stackexchange.com/questions/46235/how-does-reverse-ssh-tunneling-work

The other options are:

  • -f tells ssh to background itself after it authenticates, so you don't have to sit around running something on the remote server for the tunnel to remain alive.
  • -N says that you want an SSH connection, but you don't actually want to run any remote commands. If all you're creating is a tunnel, then including this option saves resources.
  • -T disables pseudo-tty allocation, which is appropriate because you're not trying to create an interactive shell.

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rponte commented Sep 26, 2023

https://blog.tjll.net/ssh-kung-fu/

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