Linux 配置防火牆

Linux 配置防火牆

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[root@shnagiosapp7 ~]# vi /etc/sysconfig/iptables

# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*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
-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 161 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 514 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 5666 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 5667 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A INPUT -s 172.16.200.53 -d 172.24.170.231 -p tcp --dport 80 -j ACCEPT
-A INPUT -s 172.25.128.0/24 -d 172.24.170.231 -p tcp --dport 80 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
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