Pro Tip: Ensuring IUM will have the standard http/https ports

When the IUM installer runs, it looks for the presence of the Web Server Role, if it is not installed, the installer will install it, and configure IIS appropriately to run IUM without issue.

When the Web Server Role is installed, the IUM installer will look at what ports have been bound to existing sites, if any of these sites are using either 80 (http) or 443 (https) then IUM will bind to alternate ports (6320/6321).

If the Web Server Role is installed by an operator, Windows automatically creates a default site and binds port 80 to it.  So in this scenario the IUM installer will use the alternate ports.

If you want to ensure that IUM will have the default http/https ports:
1) Select a server where no other web application is installed.
2) Ensure that server does not have the web server role installed, or remove the role if it is.
3) Install IUM, allowing the installer to install and configure the web server role.
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