Disable all the mail protocol by iptables

2018-10-12 学习教程 John

Disable all the mail protocol by iptables:

iptables -A INPUT -p tcp -m multiport --dport 25,110,465:587,993:995 -j DROP
iptables -A INPUT -p udp -m multiport --dport 25,110,465:587,993:995 -j DROP
iptables -A OUTPUT -p tcp -m multiport --dport 25,110,465:587,993:995 -j DROP
iptables -A OUTPUT -p udp -m multiport --dport 25,110,465:587,993:995 -j DROP

save the iptables:

iptables-save
service iptables save

作者：John

链接：https://vps.la/2018/10/12/disable-all-the-mail-protocol-by-iptables/

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