XTier

An authentication framework that resides on the middle-tier server. Xtier is utilized by several of Novell's Web-based applications to provide secure authentication to corporate servers across an Internet connection. Xtier works in conjunction with other software to provide services across the Web. For example, in NetStorage, users can map drives to files located on secure corporate servers through a Web browser. Xtier provides the authentication portion of the connection, and WebDAV is responsible for mapping the drive.

See also middle-tier server.