2 # this script makes a tunnel for SMTP traffic and others. a remote ssh server
3 # is required. this is especially useful for routing around firewalls using
4 # a web proxy like squid. when used for SMTP, it ensures that none of the
5 # text is seen on whatever network one is on before it's sent from the remote
8 # it accepts a single parameter so far, which will be used as the name of a
11 #hmmm: none of the user info below will work for others: parameterize it.
13 #ssh_host=khandroma.cs.virginia.edu
14 ssh_host=mason.cs.virginia.edu
16 soundfile=$FEISTY_MEOW_APEX/infobase/sounds/woouoo.wav
17 if [ ! -z "$1" ]; then
22 echo Connecting uva web sites via a machine on site: $ssh_host
23 ssh -i $HOME/.ssh/id_dsa_fred -2 -N -v -D localhost:14420 fred@$ssh_host
24 bash $FEISTY_MEOW_SCRIPTS/multimedia/sound_play.sh $soundfile
25 echo "Got dumped from tunnels; re-establishing connection."
26 echo "Note: if you're being asked for a password, you haven't set up an RSA key yet."
30 #-L 8028:localhost:3128
32 #-L 8043:localhost:443
34 # ports sometimes used:
35 # 25 is the sendmail tunnel.
36 # 3128 is the squid proxy server.
37 # 443 is the https version of squid.
39 # ssh flags in use sometimes:
40 # -f go into the background once connected.
41 # -2 enforce ssh version 2.
42 # -N don't execute any command; just forward data between the ports.
43 # -L (port:host:hostport) connect the local machine's "port" to the
44 # remote port "hostport" on the "host" specified. the local "port"
45 # becomes an alias for the remote port. note that the connection
46 # being made to host and hostport is from the perspective of the ssh
47 # server, not the local host.