Talk:Linux System Administration class

re ssh tunnelling - https://wiki.archlinux.org/index.php/Secure_Shell#Forwarding_other_ports

also see https://wiki.archlinux.org/index.php/Secure_Shell#Encrypted_SOCKS_tunnel

... don't know if this is as good as Daniel's, but there is also LLTHW's Exercise 27 and its Extra Credit links through http://nixsrv.com/llthw/ex27 . YMMV though.