ssh

tunnel

tunnel through jump server

ssh -t L7070:localhost:7071 user@jumphost ssh -t -D7071 user@furtherhost

ssh -A -t -l user jump-host \
-L 8080:localhost:8080 \
ssh -A -t -l user webserver.dmz \
-L 8080:localhost:8080

X11 forwarding

ssh -X user@host

• on server side X11Forwarding must be set to yes in '/etc/ssh/sshd_config'

ref

ssh guide