Get the SSL certificate for the new DNS name.
For more information, see Section 16.0, Creating Certificates.
Click Devices > Access Gateways.
Edit AG-Cluster and click on any reverse proxy listed under Reverse Proxy/Authentication.
Change the Server Certificate to the new one for your new DNS name.
Ignore any warning displayed about CN name mismatch because the proxy service is not yet updated.
Under the Proxy Service List tab, click the proxy which DNS name you want to modify.
Change the Published DNS Name for the proxy service.
NOTE:Changing the published DNS name of the master proxy changes Identity Server’s base URL also.
Click OK > OK.
Click Network Settings > Hosts > IP address of your system.
Add the new DNS name in the list of host names.
Click OK.
Go to Access Gateway and click Update All.
When Access Gateway Health turns green, check Identity Server Health and ensure that it is green as well.