Linux iptables 防火墙配置

# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
# 配置文件默认位于 [root@hexingxing sysconfig]# pwd
# /etc/sysconfig/
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT #SSH
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT #WEB
-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT #SSL
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT #MySQL
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT