Base URL Capability
The Base URL is the address end users apply when navigating to the user interface. The repository manager only uses this value to construct absolute URLs to your user interface inside of email notifications. The most common reason why the address would be different is if you have a reverse proxy that terminates HTTP requests at an address different from where the repository manager is running.
To set the Base URL:
Go to the System section of the Administration menu and select Capabilities.
Search for an existing Base URL capability and select it if it exists or click the Create capability button and choose Base URL from the Select Capability Type list.
Enter a new URL value.
Press the Create capability to add the Base URL.