Windows Identity Services

This course will look at how Microsoft authenticates and authorizes a user to access resources on a Windows server.


  • Authentication and identity protocols Video — 00:02:12
    • Kerberos and NTLM discussed as ways to authenticate users.

  • Security triad Video — 00:02:51
    • The differences between these three and how users utilize them for accessing resources.

  • Password policies in group policy Video — 00:02:23
    • An analysis of policies that regulate passwords in Group Policy.

  • Password policy demo Video — 00:06:09
    • A demonstration of policies that regulate passwords in Group Policy.

  • Picture passwords and PINs Video — 00:04:00
    • A look at all of the different options you can use for authentication instead of a plain username and password.

  • Sign-in options demonstration Video — 00:03:02
    • A demonstration of how to set requirements for non-traditional passwords in a local server.

  • Credential Manager demonstration Video — 00:02:11
    • Credential Manager saves login credentials to local servers and may be a security threat you can mitigate.

  • Credential Guard Video — 00:03:57
    • Credential use in Hyper-V is discussed.

  • Credential Guard demo Video — 00:03:18
    • A demonstration of credentials in Hyper-V to protect virtual machines.

  • Password reset hack Video — 00:04:51
    • A demonstration of how to reset a Windows domain administrator password without using any third-party tools.

  • Kerberos and NTLM authentication Video — 00:04:28
    • A discussion of the differences between these two protocols and when and why they are used on a modern server.

  • Two-factor authentication (2FA) Video — 00:03:22
    • A discussion of two-factor authentication options in Windows Server 2022 to add additional authentication security from hackers.

  • 2FA demonstration Video — 00:03:13
    • A demonstration of two-factor authentication.


Course description

Identity is how Microsoft Windows Server using Active Directory determines you are who you say you are. In this course, we’ll look at the different ways to authenticate a user and the differences between authentication and authorization for resource access.

Meet the author

Robert McMillen started his career as an IT administrator for a manufacturing company after earning his CompTIA A+. He quickly learned how to fix and troubleshoot desktops and laptops, but his real passions were networking and server administration. Shortly after, he earned his first MCSE and Cisco CCNA and has continued with various certifications over the years (now over 50). He earned a Microsoft Certified Trainer certification and seven MCSEs. He started a successful consulting company in 2001 and eventually sold it in 2017 to focus on teaching networking and security in college and being a video and book author. Some interesting jobs he’s performed include restoring the Enron emails for the Justice Department, training troops headed to Iraq on network security, and managing a billion dollar merger of Cisco network and Microsoft technologies.

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