Centos 防火墙设置

1.增加端口：

/sbin/iptables -I INPUT -p tcp --dport 8080 -j ACCEPT

2.保存配置：

/etc/rc.d/init.d/iptables save

3.重启防火墙：

/etc/init.d/iptables restart

4.检查是否生效：

/etc/init.d/iptables status

Table: filter

Chain INPUT (policy ACCEPT)

num target prot opt source destination

1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8080

2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:21

3 RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0

Chain FORWARD (policy ACCEPT)

num target prot opt source destination

1 RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0

Chain OUTPUT (policy ACCEPT)

num target prot opt source destination

Chain RH-Firewall-1-INPUT (2 references)

num target prot opt source destination

1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0

2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 255

3 ACCEPT esp -- 0.0.0.0/0 0.0.0.0/0