Firewalld
Contents
Open ports on firewalld
On Almalinux when using firewalld by default all ports are blocked.
Someday I need to update how to start with firewalld, but now is just how to open ports.
sudo firewall-cmd --permanent --zone=public --add-port=1333/tcp
Then restart firewalld
sudo systemctl restart firewalld
For Caddy, after install
sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https
sudo firewall-cmd --reload