Our LAN has internal web server and mail server.
I configured ZeroShell (menu “Router”->”Virtual Server”) to forward all requests on 80, 443 and 25 ports to internal IP address.
I think I configured SNAT, but I want DNAT to be able to see visitors IP addresses.
Is it possible to add this ability to ZeroShell?
P.S. Maybe I can add something like
/sbin/iptables -t nat -A PREROUTING … -J DNAT –to-destination …