Yes you can. On the outside server you have to install OpenVPN and ifenslave (for Linux) utility to create a BOND interface. But you could use Zeroshell on both sites and then connect your Unix server on a ethernet interface of the Zeroshell box
Routing and Bridging Firewall Solutions
Yes you can. On the outside server you have to install OpenVPN and ifenslave (for Linux) utility to create a BOND interface. But you could use Zeroshell on both sites and then connect your Unix server on a ethernet interface of the Zeroshell box