Easy!
Run
firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --zone=public --add-port=443/tcp --permanent
and then…
firewall-cmd --reload
How to check the zones?
firewall-cmd --get-zones
If you can’t connect to the server/page…
or with curl…
hell:~ pjrfigueiredo$ curl https://www.domain.com curl: (7) Failed to connect to www.domain.com port 443: Connection refused
Check if anything is listening to 443
sudo netstat -lnp | grep 443
If nothing show up… try to edit the domain httpd configuration file… and make it so, that httpd is listening to it… like for example
<VirtualHost *:80 *:443>