Quick and dirty, my Debian router virtual-machine, my requirements were simple: DDNS, NAT-Loopback, NAT-PMP (A.K.A. UPnP Port Mapping), and some bandwidth usage monitoring apt-get update && apt-get dist-upgrade apt-get install bind9 isc-dhcp-server iptables Here my external interface will be eth0, internal will be eth1. I’ll assume that you have internet access available on eth0 already, … Continue reading My Linux Router