配置Cento6.4 iptables防火墙。nginx
1. 查看防火墙状态tcp
service iptables status #或 /etc/init.d/iptables status
2.关闭 /开启/重启防火墙rest
# service iptables stop # service iptables start # service iptables restart
4.永久关闭防火墙code
# chkconfig --level 35 iptables off
而后重启系统使其生效:ip
# shutdown -r now
5.设置开启80端口访问get
>先查看防火墙状态:it
[root@localhost nginx]# service iptables status Table: filter Chain INPUT (policy ACCEPT) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 5 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT) num target prot opt source destination 1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) num target prot opt source destination
>设置80端口(或者手动修改/etc/sysconfig/iptables)io
[root@localhost ~]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT You have new mail in /var/spool/mail/root #保存设置 [root@localhost ~]# /etc/rc.d/init.d/iptables save iptables: Saving firewall rules to /etc/sysconfig/iptables: [ OK ]
>再查看防火墙状态table
[root@localhost ~]# service 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:80 2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 3 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 4 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 6 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT) num target prot opt source destination 1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) num target prot opt source destination
>设置80端口--修改/etc/sysconfig/iptables配置文件配置
[root@localhost ~]# vi /etc/sysconfig/iptables # 添加下面内容 -A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
最后重启防火墙使配置生效。
service iptables restart