Change the Default Ports
The panel serves HTTP on port 80 and HTTPS on port 443. If another service on the machine already uses them, set different ports in <INSTALL_DIR>/overlays/config/traefik-config.env:
env
HTTP_PORT=8080
HTTPS_PORT=8443Then run ./update.sh to apply them.
Browsers are still sent to the standard ports: the HTTP to HTTPS redirect and every link the panel builds use the bare domain. Put a reverse proxy or a port forward in front that serves 80 and 443 publicly.
Installs from before the panel moved to Traefik kept these settings in overlays/config/nginx-config.env. update.sh renames that file for you.