iptables -A FORWARD -i eth0 -s ! 1.2.3.4 -o eth1 -p tcp --dport 25 -j DROP where: eth0: your internal interface eth1: your external interface 1.2.3.4: your mail server
Hi All, I have a IPTables, NAT gateway, and I want to stop local traffic, except the mail server, from being able to connect to SMTP outside our network. For instance, some boob with an infected laptop plugged into our network and we ended up on the spamhuas list for having infected email going out. Local network is 192.168.99.0/24 on eth0 Anyone know the iptables command I need to do this? -- Scott - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
- : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
