How to rename Portal after install completes

[WilliamDeGraw]

During the install wizard for Portal for ArcGIS, you name Portal. The default is 'arcgis' and you can name it anything you desire, I typically change it to 'portal. So your URL will look similar to http://<computer.domain>:7443/portal/home . During troubleshooting, I reinstalled portal using the repair option, now the URL is http://<computer.domain>:7443/arcgis/home which is not desired. My question: after repair install is completed...is there a way to change the configuration or portal name from 'arcgis' to 'portal' to return my URL to http://<computer.domain>:7443/portal/home without uninstalling and rerunning the install wizard? 

My next course of research in hunting the admin directory for a solution. So far, I did not find anything via google search or geonet. Thank you.

[JayantaPoddar]

One way is to install and configure Web Adaptor with Portal for ArcGIS. Then,

 https://<computer.domain>:7443/arcgis/

will become

 https://<computer.domain>/portal/

[WilliamDeGraw]

Researching...found a good explaination of the URLs on ESRI's site:

Components of ArcGIS URLs—Portal for ArcGIS (10.5.x) | ArcGIS Enterprise 

Used the help files on the Web Adaptor configuration GUI (the one you enter the Portal URL and username/password to connect the WA to Portal). Found out you name the WebAdaptorName when running the WA install. So I unregistered the WA, uninstalled the WA via Control Panel, and reran the WA install to fix my error.

Does this make sense?

Was there an easier way?

[WilliamDeGraw]

Testing my own work...new URL not working and old URL is still in place after WA install, rebooting Portal, and clearing cache on browser...reaching out to ESRI support for ideas.

[JayantaPoddar]

Did you define the WebAdaptorName as "portal" while installing it?

Then you should configure it with https://<serverhost.domain>:7443/arcgis/

Once successfully configured, you will be able to access the Portal HomePage using https://<webadaptorhost.domain>/<webadaptorname>/home

[WilliamDeGraw]

After talking with ESRI, The Admin URL is hard coded and cannot be changed.

https://<server>.<domain>:7443/arcgis/home