Firewalld
start firewalld
systemctl start firewalld
look at state of firewalld
firewall-cmd --state
Which is the default zone
sudo firewall-cmd --get-default-zone FedoraWorkstation
open port in default zone
firewall-cmd --add-port=8080/tcp
get active zones
firewall-cmd --get-active-zones FedoraWorkstation interfaces: enp1s0