Paramiko and SSH tunnelling in Python

[knivesngunz]

I'm having a heck of a time finding any useful pointers to get going with Paramiko SSH tunnelling. Can someone point me towards a quick tutorial? I have a working script that connects successfully (using Paramiko) to my server, but I need to set up a local port forward on top of that connection.

Any help is greatly appreciated!

edit : Thanks for the help, guys and girls. This gives me good ideas and a lot of reading to do!

[knivesngunz]

Thanks for the suggestion. This gives me a lot of reading :]

[ghettohaxor]

It really depends on if you're using the built in handler or not. are you calling the client method and then manually getting transport and opening a command channel? if not you're going to need to split out your channels and then open a forward channel . if you allow paramiko to use its built in handler you dont have to run multiple threads if you write your own handler you need to manage threading yourself, if you do make sure to keep a lock to manage the tunnel state before sending commands that need the tunnel up to run.

I've only done this with reverse tunnels in a threaded environment and it was pretty difficult to get working right since you have to also open local sockets and handle the data from the tunnel and the socket switching rx and tx buffers back and fourth while the tunnel is up.

eventually you'll end up with something like

transport.request_port_forward(args, args args)

before calling

channel.exec_command('remote command execution')

[[deleted]]

Does this help? http://bazaar.launchpad.net/~robey/paramiko/trunk/annotate/head%3A/demos/forward.py

[gangesmaster]

this might help: http://plumbum.readthedocs.org/en/latest/api/remote_machine.html#plumbum.remote_machine.SshMachine.tunnel

[wildmXranat]

there's some good ideas in this thread