From Fedora Project Wiki


Join the current machine to an Active Directory domain using sssd as an AD client, without entering administrative credentials.


  1. You need the following software:
    • control-center or later
    • realmd 0.14.0 or later
  2. Verify that your Active Directory domain access works, or set a domain up.
  3. You need a domain user account and administrator account, or both. If you have both, enter the use account as the user you're going to add below.
  4. Your machine must have a configured host name. Do not proceed if you host name is localhost or similar.
    $ hostname
  5. Remove the following packages, they should be installed by realmd as necessary.
    $ yum remove sssd samba-client adcli
  6. Make sure you are not joined to a domain. Use realm list to check, and realm leave to leave.

How to test

  1. Run gnome-control-center from a terminal.
  2. Choose the Users panel.
  3. Click the Unlock button.
    You should get a Policy Kit authorization prompt.
  4. Click the add [+] button in the lower left.
  5. Choose the Enterprise login pane.
  6. Enter an invalid domain, invalid user, and invalid password for the account.
    Click on Add. You should see a problem icon on the domain.
  7. Enter the valid domain, invalid user, and invalid password for the account.
    Click on Add. You should see a problem icon on the user.
  8. Enter the valid domain, valid user, and invalid password for the account.
    Click on Add. You should see a problem icon on the password.
  9. Enter the right password.
  10. Click on Add
    If you user a non-administrative user, you may be prompted for administrative credentials. It is tricky to duplicate this at times. Active Directory is an odd one like that :)

Expected Results

  1. The user should now be listed in the User Accounts panel of the GNOME Control Center.
  2. Check that the domain is now configured.
    $ realm list
    Make sure the domain is listed.
    Make sure you have a configured: kerberos-membership line in the output.
    Make note of the login-formats line for the next command.
  3. Check that you can resolve domain accounts on the local computer.
    $ getent passwd 'AD\User'
    Make sure to use the quotes around the user name.
    You should see an output line that looks like passwd(5) output. It should contain an appropriate home directory, and a shell.
    Use the login-formats you saw above, to build a remote user name. It will be in the form of DOMAIN\User, where DOMAIN is the first part of your full Active Directory domain name.
  4. Check that you have an appropriate entry in your hosts keytab.
    sudo klist -k
    You should see several lines, with your host name. For example 2 HOSTNAME$@AD.EXAMPLE.COM
  5. Check that you can use your keytab with kerberos
    sudo kinit -k 'HOSTNAME$@AD.EXAMPLE.COM'
    Make sure to use quotes around the argument, because of the characters in there. Make sure the hostname and domain are capitalized.
    Use the principal from the output of the klist command above. Use the one that's capitalized and looks like HOSTNAME$@DOMAIN.
    There should be no output from this command.
  6. The user should show up here:
    $ realm list
    Look at the permitted-logins: line.
    You should also see login-policy: allow-permitted-logins.


You can see verbose output in the terminal that you started gnome-control-center from.