CentOS 6.x 配置iptables 来源 https://www.cnblogs.com/chillax1314/p/7976067.html iptables -P INPUT DROP---设置INPUT链默认规则为丢弃所有流量iptbales有四表五链,raw,mangle,nat,filter(默认)表:五链:INPUT,OUTPUT,FORWARD,PREROUTING,POSTROUTING 系统默认的iptables规则 iptables -A INPUT -m state…