Software >> OS >> Unix >> Linux >> RHEL >> Examples commands to update firewall rules in RHEL

Example, to enable TCP port 514


RHEL 7

# firewall-cmd --permanent --add-port 514/tcp firewall-cmd --reload

CentOS 6 and RHEL 6

# iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 514 -j ACCEPT service iptables save