SSL Issues

Turn SSL on under System, Settings, SSL. The panel requests one free Let's Encrypt certificate for all three names and renews it automatically.

If it fails:

1. Check that all three names point at the panel's IP:

   dig +short panel.example.com admin.panel.example.com api.panel.example.com
   

2. Port 80 must be reachable from the internet for the check.
3. If you just changed DNS, wait for the old records to expire and try again.

Let's Encrypt limits how many certificates a name can get per week. After several failed tries, wait an hour before trying again.