A SharePoint Central Administration Web Application allows you to manage configuration settings for a server farm. The first ...

A SharePoint Central Administration Web Application allows you to manage configuration settings for a server farm. The first server added to a server farm must host this web application. To specify a port number for the web application hosted on this machine, check the box below and type a number between {0} and {1}.  If you do not specify a port number, a random one will be chosen.