7.5. Adding services to open ports
On a MicroShift instance, you can open services on ports by using the firewall-cmd command.
Procedure
Optional: You can view all predefined services in firewalld by running the following command
$ sudo firewall-cmd --get-servicesTo open a service that you want on a default port, run the following example command:
$ sudo firewall-cmd --add-service=mdns