Linux-CentOS7-防火墙开启、关闭、以及查看防火墙状态命令

查看防火墙状态

[root@os-one ~]# systemctl status firewalld

如下表示防火墙开启中 active (running)

● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since 二 2019-03-26 13:00:19 CST; 1min 5s ago
Docs: man:firewalld(1)
Main PID: 26048 (firewalld)
CGroup: /system.slice/firewalld.service
└─26048 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

	3月 26 13:00:18 aubin.com systemd[1]: Starting firewalld - dynamic firewall daemon...
	3月 26 13:00:19 aubin.com systemd[1]: Started firewalld - dynamic firewall daemon.

如下表示防火墙关闭中 inactive (dead)

● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: inactive (dead) since 二 2019-03-26 13:03:22 CST; 2s ago
Docs: man:firewalld(1)
Process: 26048 ExecStart=/usr/sbin/firewalld --nofork --nopid $FIREWALLD_ARGS (code=exited, status=0/SUCCESS)
Main PID: 26048 (code=exited, status=0/SUCCESS)

	3月 26 13:00:18 aubin.com systemd[1]: Starting firewalld - dynamic firewall daemon...
	3月 26 13:00:19 aubin.com systemd[1]: Started firewalld - dynamic firewall daemon.
	3月 26 13:03:21 aubin.com systemd[1]: Stopping firewalld - dynamic firewall daemon...
	3月 26 13:03:22 aubin.com systemd[1]: Stopped firewalld - dynamic firewall daemon.

开启防火墙

[root@os-one ~]# systemctl start firewalld

关闭防火墙

[root@os-one ~]# systemctl stop firewalld