CSF ConfigServer Firewall

Disable a Firewall In Red Hat Enterprise Linux / CentOS

RHEL 6.x and beyond:

A Linux firewall is an integrated collection of security measures designed to prevent unauthorized electronic access to a networked computer system. Red hat Linux kernel has firewall called iptables. It can be disabled by typing following command (login as root user):
# service iptables stop
To turn it on type the following command:
# service iptables start
To disable firewall permanently, enter:
# chkconfig iptables off
# service iptables stop

RHEL 7.x+

As we all know that, CentOS / RHEL 7 both are completely systemd based, So We will have to use few systemd related commands to disable firewalld and enable iptables service.

1. Disable Firewalld Service.

2. Stop Firewalld Service.

 

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