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setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.

Terminal - setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.
ssh -N -L2001:localhost:80 -o "ProxyCommand ssh [email protected] nc -w 5 %h %p" [email protected]
2009-02-06 09:58:08
Functions: ssh
4
setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.

this is handy when the hubmachine is the only machine that can connect to the destination machine (allowed on ip by firewall) and you want to access it from your laptop.

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives

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What others think

You can also prevent yourself having to type this out every time by adding something like this to your ~/.ssh/config (on *n*x machines at least):

Host

ProxyCommand ssh [email protected] nc -w5 %h %p

This then allows you omit the -o "ProxyCommand ... " when you ssh.

NB: Be sure to set the perms on the .ssh dir and .ssh/config to disallow group and world read/write, else ssh will refuse to use it.

Comment by sanmiguel 234 weeks and 6 days ago

Naturally, the 'Host' line should read:

"Host destinationmachine"

Comment by sanmiguel 234 weeks and 6 days ago

Your point of view

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