1. Run Network configuration in Menu System. Make sure you assign the correct red interface which is passed to the vm from the physical Server.
2. Edit hosts in Menu Network. Add all hosts with static IPs here.
3. DHCP server in Menu Services. Make sure all interfaces are off, and refer to DHCP Server - dnsmasq
4. Setup Dynamic DNS in Menu Services.
5. Click Time server and edit time zone.
6. Enable Intrusion prevention in Menu Services.
7. Setup Port forwarding / NAT in Menu Firewall. Add all ports you need to forward traffic to the respective machine, including HTTP(80) and HTTPS(443) to the web server. Make sure receiving machines such as NAS are configured correctly to access the internet.
8. Disable the Outgoing firewall in Outgoing traffic.

You need to enable the SSH Server to be able to login remotely without password.

1. run ssh-keygen on your host
2. copy the id_rsa.pub file to a USB stick, then attach the stick to the box, or use SCP file transfer
3. copy the host's id_rsa.pub file to /root/.ssh/authorized_keys
4. in the box' web interface, set Allow public key based authentication only in SSH access in Menu System

Check whether the firewall is set and hit on a specific port with:

iptables -t nat -L -v -n

Administrative Guide Check open ports: http://www.yougetsignal.com/tools/open-ports/