Complex sentence: The Ident Protocol is designed to work as a server daemon, on a user's computer, where it receives requests to a specified port, generally 113, the server will then send a specially designed response that identifies the username of the current user.
Split into simpler sentences: The Ident Protocol is designed to work as a server daemon, on a user's computer, where it receives requests to a specified port, generally 113. The server will then send a specially designed response that identifies the username of the current user.