This is an example of how you can port forward a port to an internal machine. In this case, we are port forwarding from the firewall to an Apache web server located on IP 192.168.0.10, with both HTTP and HTTPS services.
Config: etc/srfirewall/ipv4/portfw.conf
# <port> <protocol> <internal IP> <internal port> <external interface> 80 tcp 192.168.0.10 80 eth0 443 tcp 192.168.0.10 443 eth0 8080 tcp 192.168.0.11 80 eth0