iptablesの履歴
プロトコル許可
-A RH-Firewall-1-INPUT -m tcp -p tcp --dport 25 -j ACCEPT -A RH-Firewall-1-INPUT -m tcp -p tcp --dport 80 -j ACCEPT -A RH-Firewall-1-INPUT -m tcp -p tcp --dport 110 -j ACCEPT -A RH-Firewall-1-INPUT -m tcp -p tcp --dport 443 -j ACCEPT