Windows Diary

Fixed: How To Fix Kerberos Security Error Code 0x7 Kdc_err_s_principal_unknown.

Posted on by Dean Cuni

 

Sometimes, your computer may generate an error code that points to Kerberos security error code 0x7 kdc_err_s_principal_unknown. This problem can be caused by a number of reasons.

Approved: Fortect

  • 1. Download Fortect and install it on your computer
  • 2. Launch the program and click "Scan"
  • 3. Click "Repair" to fix any issues that are found
    • Speed up your computer's performance now with this simple download.

     

     

    • Question

    • Hello

      security-kerberos error code 0x7 kdc_err_s_principal_unknown

      I am still encountering event code 3 in the syslog on my Dell WIN2k3 R2 SP2 server where the specific error is: Kerberos error code: 0x7 KDC_ERR_S_PRINCIPAL_UNKNOWN … Strange

      The point is who the server and the target are, except that the server name appears as server.domain.org and the target name appears as [email protected] Is this additional @ domain.org a mystery or is it true and the problem is different?

      If this is a problem, how can I fix it?

      security-kerberos error code 0x7 kdc_err_s_principal_unknown

      THANKS Mike

    The Answers

      • Marked as a response by user Joson Zhou August 18, 2008, Monday, 1:52

    All Answers

      • Marked as a response by user Joson Zhou August 18, 2008, Monday, 1:52

    • This link is invalid. Could you update Joson please? thank you !

      Vic the Smart ITUAT&T

    • Hi Mike,

      This issue can occur if the SPN has not been defined for a specific member name ka-services. See Solutions in this section0x7 – KDC_ERR_S_PRINCIPAL_UNKNOWN from the following product on the market to resolve the issue:

      Troubleshooting Kerberos Errors

      http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/security/tkerberr.mspx

      Approved: Fortect

      Fortect is the world's most popular and effective PC repair tool. It is trusted by millions of people to keep their systems running fast, smooth, and error-free. With its simple user interface and powerful scanning engine, Fortect quickly finds and fixes a broad range of Windows problems - from system instability and security issues to memory management and performance bottlenecks.

    • 1. Download Fortect and install it on your computer
    • 2. Launch the program and click "Scan"
    • 3. Click "Repair" to fix any issues that are found

    This error slogan does not tell us which service is causing the problem frequently. How do I know which SPN delegation to use for an account if I don’t know which service or application pool is causing this problem? Guilt ?

    • Suggested as a medicine Jabez Gan Friday, 23 November 2013 11:09

  • Great, I found a duplicate SPN from setspn -X and with ASIDIEDIT.

    • I see event ID 3 in syslog directly on my Dell WIN2k3 R2 SP2 devices witho special error: Kerberos error code: 0x7 KDC_ERR_S_PRINCIPAL_UNKNOWN.

    The weird thing is that my server and destination are the same, but the server name is mostly server.domain.org and the destination name is server.domain .org @ domain.org Is the additional @ domain.org problem, or maybe this is correct and the problem is elsewhere?

    If so, how can I fix it?

    The Answers