Here are some of the more common questions asked regarding Admin Tools for Portal:
...
Q: Where should Admin Tools be Installed?
A: It is usually fine to install Admin Tools for Portal on the same machine that runs the actual ArcGIS Enterprise.
Q: If using dedicated servers for Admin Tools for Portal, do you have certificate requirements?
A: No. There are no certificate requirements.
Q: If using dedicated servers for Admin Tools for Portal, is a dedicated server per environment required, or can one “Admin Tools” server work for multiple environments?
A: One Admin Tools installation will suffice, provided we know all the various portals it will need to be able to connect to for the build process.
Q: Do you need the DNS and hostnames of the federated ArcGIS Servers and Datastores?
A: We only need the portal Hostnames and DNS, not any federated arcgis servers linked to them.
Q: Are federated servers a requirement to use Admin Tools for Portal?
A: No, it is not a requirement. OAuth will be used in place of federation where needed.
Q: Can you tell me how to Install Admin Tools for Portal?
A: Absolutely. Please see our Admin Tools for Portal Installation Guide.
...