RHEL 7: Disable Firewall

Unlike previous versions, RHEL 7 uses the firewalld service instead of the iptables service for its firewall. The firewall can be completely disabled with the following systemctl commands:

systemctl disable firewalld
systemctl stop firewalld

CentOS 7: Disable Firewall

Unlike previous versions, CentOS 7 uses the firewalld service instead of the iptables service for its firewall. The firewall can be completely disabled with the following systemctl commands:

systemctl disable firewalld
systemctl stop firewalld