A.allowed B.hostsvalid C.hostsallow D.public
A.Server-name B.Fixed-address C.Filename D.hardware
A.iptables - t nat - A ROUTING -o eth0 - j MASQUERADE B.iptables - t nat - A PREROUTING -i eth0 - j MASQUERADE C.iptables - t nat - A POSTROUTING -o eth0-j MASQERADE D.iptables - t nat - A POSTROUTING -o erh1 -j MASQUERADE E.iptables - t nat - A POSTROUTING -o erth0 -j SNAT - TO 67.36.6.192