gistfile1.txt

#!/bin/sh

# Some config params:
device_id=$(hostname | tr -cd "[:digit:]" )
device_port=$((22000+$device_id))
vnc_port=$((25000+$device_id))
remote_port=23456
host_addr=1.2.3.4
host_user=skaag

exec >/dev/null
exec 2>&1

exec /usr/bin/ssh -T -N -C \
        -o BatchMode=yes \
        -o ServerAliveInterval=15 \
        -o ServerAliveCountMax=3 \
        -o IdentitiesOnly=yes \
        -o ConnectTimeout=10 \
        -o ConnectionAttempts=3 \
        -o port=$remote_port \
        -i /root/.ssh/id_dsa \
        -R $device_port:localhost:22 \
        -R $vnc_port:localhost:5900 \
        $host_user@$host_addr < /dev/null