TrueNAS SCALETrueNAS SCALE Version Documentation
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Kerberos Keytab Screens

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Last Modified 2024-03-19 08:38 EDT

Kerberos is extremely complex. Only system administrators experienced with configuring Kerberos should attempt it. Misconfiguring Kerberos settings, realms, and keytabs can have a system-wide impact beyond Active Directory or LDAP, and can result in system outages. Do not attempt configure or make changes if you do not know what you are doing!
Kerberos is a computer network security protocol. It authenticates service requests between trusted hosts across an untrusted network (i.e., the Internet).

If you configure Active Directory in SCALE, SCALE populates the realm fields and the keytab with with what it discovers in AD. You can configure LDAP to communicate with other LDAP severs using Kerberos, or NFS if it is properly configured, but SCALE does not automatically add the realm or key tab for these services.

After AD populates the Kerberos realm and keytabs, do not make changes. Consult with your IT or network services department, or those responsible for the Kerberos deployment in your network environment for help. For more information on Kerberos settings refer to the MIT Kerberos Documentation.

Kerberos Keytab Widget

The Kerberos Keytab widget in the Advanced Settings on the Directory Services screen displays added keytabs.

KerberosKeytabWidget

Add opens the Add Kerberos Keytab configuration screen.

Click on any instance to open the Edit Kerberos Keytab screen.

The Kerberos Keytab widget header opens the Kerberos Keytabs screen.

Kerberos Keytab Screen

The Kerberos Realms screen displays a list view of realms configured on your SCALE system.

KerberosKeytabsScreen

Actions includes the option to Add a new keytab. Add opens the Add Kerberos Keytab screen.

The more_vert button opens the actions options for the selected keytab. Options are Edit which opens the Edit Kerberos Keytab screen for the selected keytab, and Delete that opens a delete confirmation dialog.

Add and Edit Kerberos Keytab Screens

The settings found on the Add Kerberos Keytab and Edit Kerberos Keytab screens are the same.

Kerberos is extremely complex. Only system administrators experienced with configuring Kerberos should attempt it. Misconfiguring Kerberos settings, realms, and keytabs can have a system-wide impact beyond Active Directory or LDAP, and can result in system outages. Do not attempt configure or make changes if you do not know what you are doing!

AddKerberosKeytabScreen

SettingDescription
NameEnter a name for this Keytab. If configured, SCALE populates this field with what it detects in Active Directory.
Kerberos KeytabBrowse to the keytab file to upload.

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