如何关闭centos中的防火墙

1、查看防火墙状态

systemctl status firewalld.service

输出结果：

● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
   Active: active (running) since 四 2023-02-02 04:11:06 UTC; 9h ago
     Docs: man:firewalld(1)
 Main PID: 441 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─441 /usr/bin/python2 -Es /usr/sbin/firewalld --nofork --nopid

2月 02 04:11:05 localhost.localdomain systemd[1]: Starting firewalld - dynamic firewall daemon...
2月 02 04:11:06 localhost.localdomain systemd[1]: Started firewalld - dynamic firewall daemon.
2月 02 04:11:07 localhost.localdomain firewalld[441]: WARNING: AllowZoneDrifting is enabled. This is conside...now.
Hint: Some lines were ellipsized, use -l to show in full.

2、停止防火墙

systemctl stop firewalld.service

3、禁用防火墙（下次开机，不会默认开启防火墙）

systemctl enable firewalld.service