Start Stop Firewall

 

Let us see how to stop and disable Firewalld on a CentOS or RHEL 7.x based system.

Is firewalld running on my system?
sudo firewall-cmd --state

Stop the the firewalld
sudo systemctl stop firewalld

Disable the FirewallD service at boot time
sudo systemctl mask --now firewalld

Run:

Again, type:

sudo systemctl disable firewalld