The following slides are from a talk given at ALA to the LITA SSSIG June 1999. Select the first link below to begin.

• Title
• What Is This?
• The Dark Ages
• Columbia University Infrastructure
• CGI-based Authentication/Authorization
• CGI-based Auth -- Design
• CGI-based Auth -- Problems
• HTTP Authentication/Authorization
• HTTP Auth -- Design
• HTTP Auth -- Problems
• Proxying Third-party resources
• The Bleeding Edge
• Digital Certificates are Cool
• The DLA3 Project
• The queryURL Extension
• The serviceClass attribute
• The Big Picture
• Sign Up Now!