What is the difference between an Application server and a Portal server?

Alessandro A. Garbagnati

A "portal server" is just an application server running a portal sofware or a portal application (Microsoft Sharepoint Portal Server is an example).

An application server is a system that provides the execution environment that is at the core of network computing or web-based architectures, providing a full set of services.

In addition, please see What are all the different kinds of servers? (Such...