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Setting up Kerberos authentication for vCloud Director (2015986)

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This article provides steps to set up Kerberos authentication for vCloud Director (vCD).


  • Ensure to note the use of upper and lower case alphabets in this procedure.
  • This article assumes these sample domain name and host name:
    • Domain name in Active Directory -
    • Hostname for the Active Directory server -

To set up Kerberos for vCD:

  1. Open the /etc/hosts file located in your vCloud Director cell machine using a text editor.
  2. Add the entry for the Active Directory host and the IP address to resolve the hostname, if this is not resolving through DNS.

    For example, if the IP address of the AD server is, add the entry: xyz

  3. In the vCloud Director user interface, from either the system page or from within an Organization, navigate to Administration > LDAP.
  4. In this settings page, add the server name as and provide a proper base distinguished name for Active Directory.
  5. Select Kerberos as the Authentication method.
  6. Click Edit All Realms to add a realm and DNS for this setup.
  7. Add ABCD.COM as the realm and as the kdc.
  8. In the DNS tab, add as the DNS for your realm.
  9. After adding the realm properties, in the main LDAP settings page, select the realm from the dropdown list.
  10. Give a username similar to and the password to authenticate.
  11. Under Domain/Users in the Active Directory server, create a user, such as user1, and give an appropriate password.
  12. Run this command on the Active Directory machine:

    setspn -A LDAP/user1.ABCD.COM user1

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