Explore key principles of web infrastructures in this comprehensive lecture from the Introduction to Security and Network Forensics series. Delve into essential topics including identity management, HTTP protocols, LDAP (Lightweight Directory Access Protocol), authentication methods, and access control. Examine standard authentication techniques, RADIUS protocol, federated identity systems like OpenID, Kerberos, and Cardspace. Gain valuable insights into web security fundamentals and network forensics concepts as presented by Prof Bill Buchanan OBE at Edinburgh Napier University.