N2n
From Kyle's Wiki
N2n is a nice little vpn that traverses NAT, firewalls, etc.
Here is an example debian init script you can use:
cat > /etc/init.d/n2n-edge << @EOF #!/bin/sh ### BEGIN INIT INFO # Provides: n2n-edge # Required-Start: $network $remote_fs $syslog # Required-Stop: $network $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start n2n VPN ### END INIT INFO PATH=/sbin:/bin:/usr/sbin:/usr/bin . /lib/lsb/init-functions NAME=n2n-edge DAEMON=/usr/sbin/edge #PIDFILE=/var/run/n2n-edge.pid test -x $DAEMON || exit 5 if [ -r /etc/default/$NAME ]; then . /etc/default/$NAME fi case $1 in start) log_daemon_msg "Starting N2N Vpn" "n2n" start-stop-daemon --start --quiet --exec $DAEMON --startas $DAEMON -- $N2NOPTS status=$? log_end_msg $status ;; stop) log_daemon_msg "Stopping N2N vpn" "n2n" start-stop-daemon --stop --quiet --exec $DAEMON log_end_msg $? rm -f $PIDFILE ;; restart|force-reload) $0 stop && sleep 2 && $0 start ;; try-restart) if $0 status >/dev/null; then $0 restart else exit 0 fi ;; status) pidofproc -p $PIDFILE $DAEMON >/dev/null status=$? if [ $status -eq 0 ]; then log_success_msg "N2N vpn is running." else log_failure_msg "N2N vpn is not running." fi exit $status ;; *) echo "Usage: $0 {start|stop|restart|try-restart|force-reload|status}" exit 2 ;; esac @EOF chmod +x /etc/init.d/n2n-edge update-rc.d n2n-edge defaults
And your /etc/default/n2n-edge should look like this:
N2NOPTS="-c n2n -k RANDOM -a 10.0.1.104 -s 255.255.255.0 -l x.x.x.x:1000 -f"