清除所有规则: iptables -F
开放常用tcp端口: iptables -I INPUT -p tcp -m multiport --dports 20,21,22,3690,80,443,4443,8023,8888,25,110,30000...tcp -m multiport --sports 20,21,22,3690,80,443,4443,8023,8888,25,110,30000:30999 -j ACCEPT
开放常用...udp端口: iptables -I INPUT -p udp -m multiport --dports 53,123,8571,8888 -j ACCEPT iptables...-I OUTPUT -p udp -m multiport --sports 53,123,8571,8888 -j ACCEPT
开放特殊udp端口(如:dns): iptables...I INPUT -p udp --sport 53 -j ACCEPT iptables -I OUTPUT -p udp --dport 53 -j ACCEPT
开放