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After January 14, 2020, Microsoft will no longer provide security updates or support for computers running Windows 7. All Windows 7 computers used for Stanford activities should be upgraded to Windows 10 by January 2020. Learn more about upgrading to Windows 10 by January 2020.

Because this website uses an older two-step authentication method, when you download the software you might not see the updated version of the two-step authentication screens.

Kerberos provides secure authentication for various services at Stanford, such as Stanford OpenAFS.

  • For Windows, a utility called Network Identity Manager provides the graphical user interface for managing Kerberos functions.
  • For Mac,  Kerberos  is built in to Mac OS X.



The installer installs the 32-bit version on 32-bit Windows operating systems and the 64-bit version on 64-bit Windows operating systems.

32-bit operating system

  • Kerberos for Windows: 3.2.2
  • Network Identity Manager:

64-bit operating system

  • Kerberos for Windows: 7.4.0
  • Network Identity Manager:


  • Kerberos Commander for Mac:

System requirements

  • Windows 7 and later
  • Mac OS X 10.9 and later


  • Current faculty, staff, and students


  • If an application at Stanford requires Kerberos authentication (e.g., Stanford OpenAFS) you should be logged in to Kerberos before launching the application.
  • Your Kerberos authentication is in effect for 25 hours.