How to use one URL with two Fiori hostames?

Hello all,

I have one PAS and one AAS running S/4HANA 2020. User will access using URL, instead of SAP GUI. What would be the config needed for this to work? I do not want users having two different URLs on their computers. The idea is to provide HA for Fiori apps (server A goes down, server B can take the load).

Any ideas?

Regards