What is "Portal Settings, Websites"

[Jürgen Troschke, geändert vor 6 Jahren.]

My question
What is the effect of the following setting?

Under Control Panel | Portal Settings there is a point Websites.
There you can define more URLs with the properties Type (Intranet, Public) and Primary.
This Property is mentioned in the documentation but is not described.

Background
We would like to access one and the same portal instance with two URLs
- portalX.brandenburg.de
- portalX.intranet.de

In the Apache web server there are ServerName and ServerAlias.
So I want to know if the property Websites is perhaps intended as an alias.

[Olaf Kock, geändert vor 6 Jahren.]

If I'm remembering this place correctly, it's just a list of websites, with no effect on any runtime operation. Like the collection of phone numbers on a related configuration page. You could read those values from the API and do something with them - I've never seen them surface anywhere

[Jürgen Troschke, geändert vor 6 Jahren.]

Thank you for your quick response.