sudo firewall-cmd --add-port=80/tcp --permanent
Always test rules in the runtime environment first. If you mess up, a simple reload reverts everything! #Linux #SysAdmin #CyberSecurity #Firewalld #DevOps FirewallHD
Stop wrestling with complex iptables and start using zones. Here are the 5 commands every Linux admin should know: sudo firewall-cmd --state See All Rules: sudo firewall-cmd --list-all FirewallHD