How to disable firewalld on CentOS7 and RHEL7 By Johnathan Mark Smith
CentOS7 and RHEL7 use Firewalld which is a bit complicated so I am going to show you how to disable it.
How to stop and disable firewalld
The following two commands will first disable firewalld and then stop it.
Thats it so you box now has NO firewalld running.. you should maybe think about iptables.
If you have any questions or comments please email me at firstname.lastname@example.org