ssh tunnels that stay alive

Don't have time for an explanation but heres a command to setup a ssh tunnel. (linux)

This will keep the tunnel alive after you logout, and also send keepAlive pings in order to stop any other proceses from deciding that its a dead link and shutting it down.

ssh -2 -x -L <localport>:<remotehost>:<remoteport> <remotelogin>@<remotehost> -N -n –f