check firewall status linux code example

Example 1: firewall status on ubuntu

$ sudo ufw status
[sudo] password for linuxconfig: 
Status: inactive

Example 2: RHEL check the firewall status

[root@rhel7 ~]# systemctl status firewalld

Example 3: RHEL check the firewall status

[root@rhel7 ~]# systemctl enable firewalld

Example 4: RHEL check the firewall status

[root@rhel7 ~]# systemctl disable firewalld