Hi,
We are facing issues while installing the ArcGIS Server on Windows VM. We are following ArcGIS Server 10.8.x system requirements documents https://enterprise.arcgis.com/en/system-requirements/latest/windows/arcgis-server-system-requirements.htm
While opening given ports on firewall settings (inbound rules) the ports didn't get open. And when we install the ArcGIS Server without opening the ports on the firewall the ports automatically get open. We have verified the ports after the ArcGIS Server installation using telnet on command prompt.
How to open the ports before installing the ArcGIS Server as mentioned in the document?