Active Directory Tip: Kerberos basics for Windows authentication

KERBEROS PROTOCOL: WHAT EVERY ADMIN SHOULD KNOW ABOUT WINDOWS AUTHENTICATION

Kerberos can be a difficult protocol to understand for some Active Directory admins, so it's best to start at the beginning. Expert Gary Olsen describes the basics of how Kerberos authentication and authorization works for Windows.

erberos is a protocol that, prior to Windows 2000 Server, Windows NT admins could ignore. At that time, Microsoft used NTLM for authentication, which was fine for the Windows world -- but nowhere else.

With the inception of Windows 2000, Microsoft adopted Kerberos as an authentication protocol. Not only was it much more secure and efficient than NTLM, but it also played nicely with other operating systems such as Unix.

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