Why a Regular Domain User Can be a Real Security Threat

The video tutorial explains the role of a regular domain user in a network and introduces Service Principal Names (SPNs) as a feature in Windows for identifying service instances. It covers how SPNs are used in Kerberos authentication and how any domain user can query SPNs to gather information about service accounts and services linked to Active Directory. The tutorial demonstrates using the setspn command to perform these queries and interpret the results, providing examples from real environments. It concludes with a discussion on different SPN types and resources for further learning.

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