Ssh

ssh is a command to log in over the network to another computer.

Send graphical output to ssh user

ssh -l user server -X
xclock &

port forwarding

ssh username@server -L localport:remoteserver:remoteport

ssh verbose

ssh -v user@server
or -vv, -vvv

possible problems

Wrong key on ssh-login:

Problem

 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

Solution

$ ssh-keygen -R <hostname>

Related

ssh-related topics:

• passwordless login