you have 2 options (since 1 ssh tunnel won't work)
1. Setup a VPN, connect to it, and you're done.
On your vserver (debian) .. install openvpn it's very easy to setup, p2p is the easiest, after that let your vserver do some routing to the outside world, and you're good to go.
some tuts about openvpn:
2. Stop playing wow at work, and start farming gold when you're at home