How do I permanently disable firewall?

To permanently disable the firewall on your CentOS 7 system, follow the steps below:

1. First, stop the FirewallD service with: sudo systemctl stop firewalld.
2. Disable the FirewallD service to start automatically on system boot: sudo systemctl disable firewalld.

How do I permanently disable the firewall in RHEL 7?

How to Disable the Firewall for Red Hat Linux

1. Stop the ipchains service. Type: # service ipchains stop.
2. Stop the iptables service. …
3. Stop the ipchains service from starting when you restart the server. …
4. Stop the iptables service from starting when you restart the server. …
5. Reboot the PXE/DHCP server.