Microsoft, by integrating Kerberos into Active Directory on Windows 2000 and 2003, has extended the reach of Kerberos to all networks large or small. Kerberos makes your network more secure and more convenient for users by providing a single authentication system that works across the network. Besides covering the basic principles behind cryptographic authentication, covers everything from basic installation to advanced topics such as authentication cross country, defending against attacks on Kerberos, and troubleshooting. In addition to covering Microsoft's Active Directory implementation, Kerberos: A guide plan covers both major implementations for Unix and Linux Kerberos: MIT and Heimdal. The book also covers both versions of the Kerberos protocol is still in use: Kerberos 4 (now obsolete) and Kerberos 5, paying special attention to integration between different protocols, and between Unix and Windows implementations.