Centos 7中,防火墙配置端口规则

注意:firewalld服务有两份规则策略配置记录,配置永久生效的策略记录时,需要执行"reload"参数后才能立即生效:

  • Permanent:永久生效的
  • RunTime:现在正在生效的

1.查看当前区域

[root@ecs-7bec-0002 bin]# chkconfig iptables offpublic

2.查看防火墙状态,需要注意的是,设置端口规则时防火墙必须是启动状态

[root@ecs-7bec-0002 ~]# systemctl status firewalld     //返回信息提示防火墙未启动● firewalld.service - firewalld - dynamic firewall daemon   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)   Active: inactive (dead)      //dead代表关闭状态     Docs: man:firewalld(1)[root@ecs-7bec-0002 ~]# systemctl start firewalld     //启动防火墙[root@ecs-7bec-0002 ~]# systemctl status firewalld     ● firewalld.service - firewalld - dynamic firewall daemon   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)   Active: active (running) since Tue 2018-10-09 19:38:36 CST; 2s ago     Docs: man:firewalld(1) Main PID: 9269 (firewalld)   CGroup: /system.slice/firewalld.service           └─9269 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopidOct 09 19:38:36 ecs-7bec-0002 systemd[1]: Starting firewalld - dynamic firewall daemon...Oct 09 19:38:36 ecs-7bec-0002 systemd[1]: Started firewalld - dynamic firewall daemon.

3.配置需要开发的端口

[root@ecs-7bec-0002 ~]# firewall-cmd --zone=public --add-port=端口号/tcp --permanentsuccess

4.执行命令使端口生效

[root@ecs-7bec-0002 ~]# firewall-cmd --reloadsuccess

5.查看端口是否生效

[root@ecs-7bec-0002 ~]# firewall-cmd --zone=public --query-port=端口号/tcpyes

6.防火墙其他操作

[root@ecs-7bec-0002 ~]# firewall-cmd --list-port    //查看所有开发端口3306/tcp 80/tcp[root@ecs-7bec-0002 ~]# firewall-cmd --zone=public --remove-port=8080/tcp --permanent      删除一个端口success[root@ecs-7bec-0002 ~]# firewall-cmd --reload      //使新配置的端口规则生效success[root@ecs-7bec-0002 ~]# firewall-cmd --version      //查看版本0.4.3.2[root@ecs-7bec-0002 ~]# firewall-cmd --staterunning[root@ecs-7bec-0002 ~]# firewall-cmd --get-active-zones    //查看所在区域public  interfaces: eth0

 

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