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MIT Kerberos for Windows (KfW) is an integrated Kerberos release for Microsoft Windows operating systems. KfW installs tickets on a computer in order to grant access to essential MIT services. It provides customizations for some MIT applications requiring Kerberos authentication, enabling you to gain secure access to SAPgui and connect to Athena via SSH. Learn more.

How to Obtain


Kerberos for Windows (KfW) 4.1 is available for use by MIT faculty, staff, and students.


Find out which version you are running.



About this Version 

Known issues

  • When upgrading from KfW 3.2, the krb5.ini file is archived as krb-ini-prekfw4 and is stored in the Windows folder. A new krb5.ini is created by the installer. If the previous krb5.ini contained realms other than ATHENA.MIT.EDUWIN.MIT.EDU, and CSAIL.MIT.EDU, they will need to be manually added to the new krb5.ini.
  • When you change your password, MIT Kerberos for Windows does not confirm that the change has been completed.

System requirements and release notes