Firewalld

Der Dienst

• systemctl stop firewalld.service
• systemctl start firewalld.service
• systemctl status firewalld.service

Ermitteln des Zustandes

• firewall-cmd --state

Webserver freischalten

• firewall-cmd --zone=public --add-service=http --permanent
• firewall-cmd --zone=public --add-service=https --permanent

OpenVPN

• firewall-cmd --zone=public --add-port=1194/udp

Listing was freigeschaltet ist in der Public Zone

• firewall-cmd --zone=public --list-services --permanent

Quelle

• https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-8-de