So, I have a portal and web adaptor on one machine. The name of the machine is abc.domain.com, and it is assigned to the DNS name with the name of xyz.domain.com. Now, I want to separate the portal and web adaptor. To avoid unfederate process, I installed the web adaptor on a new machine (let's say def.domain.com) and assigned the DNS name xyz.domain.com to that machine.
After that, I restarted the portal service, then opened the portal using abc.domain.com:7443/arcgis/home and it was successful. I've registered web adaptor (on xyz.domain.com) to the portal (abc.domain.com:7443/arcgis/home) and its success too. But when I opened the portal through web adaptor, there's an error that said it could not access any portal machine. When I checked the portaladmin, it turns out, the portal machine name is still registered as xyz.domain.com.
My question is, is there any idea on how to change the portal machine name in the portaladmin? Or, is there any way to separate the web adaptor to a new machine without having to reinstall or refederate the server?