How to Enable Kerberos Credential Delegation (TGT Forwarding) from Windows Client to RHEL via SSH

Solution Verified - Updated -

Issue

  • Kerberos TGT not transferred with SSH login from Windows clients to RHEL systems.
  • Kerberos authentication completes successfully, but credential delegation (TGT forwarding) does not occur.
  • Error observed in SSH debug logs:
debug1: Next authentication method: gssapi-with-mic
debug1: Delegating credentials
debug1: sspi delegation was requested but not fulfilled
debug1: Delegating credentials
debug1: sspi delegation was requested but not fulfilled

Environment

  • Red Hat Enterprise Linux 7/8/9/10
  • Active Directory
  • Windows clients using OpenSSH with Kerberos (GSSAPI) authentication

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