Lab 36.4 on Ubuntu
I've had no problem with this lab on CentOS but I'm not sure why I'm failing under Ubuntu.
I add rules for http and https under 'Public' in the gufw graphical program, and the profile is set to on, but
$ sudo firewall-cmd --zone=public --list-services (or --zone=public --query-service=http (or https)
does not list the services. What am I doing wrong?