Custom Authentication using SiteMinder for MOSS

WSS 3.0 and MOSS custom authentication using a third-party component (SiteMinder). – Vlad’s Blog
I stumbled upon the above blog post which talks about implementing the custom authentication using Forms based authentication to authenticate users through SiteMinder. I have read couple of other blogs about the same topic but this blog is unique, it explains well [...]

Multiple or Dual Authentication for a Single Web Application in Sharepoint Office System 2007

Below two blog posts are an excellent help if anyone is looking for implementing more than one authentication mechanism.

Blog by Dan Attis
Blog by Andrew Connell

Let me clarify why would someone look for implementing multiple authentication: Usually companies and corporations have their user or employee accounts in Windows Active Directory. When Sharepoint/MOSS is installed [...]

IIS Authentication Model and Options

IIS 6.0 Authentication Model: An important part of many distributed applications is the ability to identify someone, known as a principal or client, and to control the client’s access to resources. Authentication is the act of validating a client’s identity. Generally, clients must present some form of evidence, known [...]