By default ClearOS will use a bootstrap certificate for the webconfig. Once a system certificate is created through the Certificate Manager, the Webconfig will switch to using the “Self-Signed Default Certificate”. You can choose from the dropdown the Default Certificate, any Let's Encrypt Certificate or any other certificate you have uploaded through the Certificate Manager.
<note tip>If you use a Let's Encrypt or Commercial certificate for the Webconfig, you will no longer see SSL Certificate Warnings in your browser when you connect to the Webconfig as long as the certificate covers the domain name you are using to access the Webconfig.</note>
Choose your system language from the dropdown.
Check this box if you want the change to be effective immediately.
for the menus on the left of the Webconfig
For shutting down or restarting ClearOS.
<note tip>You can also show a Shutdown/Restart panel in the dashboard.</note>