SSH Port Forwarding

# Forward localhostport to destinationhost:destinationhostport
# using sshdhost.
#
# e.g, forward localhost:80 to remotehost:8080 using anysshdhost
# sudo ssh -L 80:remotehost:8080 user@anysshdhost
sudo ssh -L localhostport:destinationhost:destinationhostport user@sshdhost

# Forward sshdhost:sshdhostport to
# destinationhost:destinationhostport using sshdhost.
#
# e.g., forward localhost:80 to remotehost:8080 using localhost
# ssh -R 80:remotehost:8080 root@localhost
ssh -R sshdhostport:destinationhost:destinationhostport user@sshdhost