Wrong principles in krb5.keytab when joining to Windows Active Directory

Solution Verified - Updated -

Issue

  • When joining to Windows Active Directory using realm join it appears that the /etc/krb5.keytab gets the wrong principles.
  • The computer object in Active Directory gets the wrong servicePrincipalName and/or dNSHostName values.
  • Executing klist -k reveals that the host's FQDN is not used for the SPN values.

Environment

  • Red Hat Enterprise Linux (RHEL) 7.8
  • realmd-0.16.1-12
  • samba
    • 4.10.4-8
    • 4.10.4-10

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