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KB450459 – Joining an Active Directory in Houston UI with Rocky 8 Linux

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  • This article will walk through the process of joining an Active Directory in Houston UI with Rocky Linux.


  • Rocky Linux 8
  • Houston UI
  • Windows Active Directory
  • Credentials for Domain User with permission to authenticate Active Directory Join


Installing packages

  • Install packages needed for domain join
[root@rocky-45d ~]# dnf install -y realmd oddjob-mkhomedir oddjob samba-winbind-clients samba-winbind samba-common-tools samba samba-winbind-krb5-locator krb5-workstation samba-client

Configuring realmd to use winbind

  • Set domain-client  to winbind instead of sssd
[root@rocky-45d ~]#sed -i 's/^\(default-client = \).*$/\1winbind/' /usr/lib/realmd/realmd-defaults.conf
  • Then restart the realmd service.

Configuring Hostname and DNS

  • Set hostname to include domain name if not set already, this is done in the Overview tab of the Houston UI.

  • Set DNS server to the IP of the Domain Controller if not done already. This is done in the network tab of the Houston UI

Joining the Domain

  • Join Domain, refresh the page if the Join Domain button is greyed out

Granting SeDiskOperatorPrivilege

  • Now we need to grant the SeDiskOperatorPrivilege privilege to any domain groups / users that are going to be configuring share permissions.
[root@rocky-45d ~]# net rpc rights grant "45LAB\domain admins" SeDiskOperatorPrivilege -U "45LAB\bk"
Enter 45LAB\bk's password:
Successfully granted rights.
  • You can list all users and groups who have this privilege by running:
[root@rocky-45d ~]# net rpc rights list privileges SeDiskOperatorPrivilege -U "45LAB\bk"
Enter 45LAB\bk's password:
45LAB\domain admins
If this is not done, then we cannot set the initial group ownership to configure permissions on any SMB shares.


  • We can now communicate with our Active Directory server, and assign permissions based on the users and groups from our Active Directory.


  • Ensure you have configured the server hostname and DNS address correctly.
  • Ensure you have configured nsswitch.conf correctly.
    • sed -i 's/^\(passwd:\s\+files\) \(systemd\).*$/\1 winbind \2/g;s/^\(group:\s\+files\) \(systemd\).*$/\1 winbind \2/g' /etc/nsswitch.conf
  • If net rpc rights grant is causing issues, try using net sam rights grant instead.
  • Ensure the line “include = /etc/cockpit/zfs/shares.conf” line is at the bottom of the [global] section of the smb.conf file.


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