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

ssh -N -L2001:localhost:80 -o "ProxyCommand ssh someuser@hubmachine nc -w 5 %h %p" someuser@destinationmachine
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.

4
2009-02-06 09:58:08
ssh

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 someuser@hubmachine 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.
sanmiguel · 499 weeks and 4 days ago
Naturally, the 'Host' line should read: "Host destinationmachine"
sanmiguel · 499 weeks and 4 days ago
good
sarajems2 · 209 weeks and 2 days ago
Chains around my demons, wool to brave the seasons postpartum doula atlanta
tillyracker · 18 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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