TrueNAS Enterprise
TrueNAS SCALE
TrueNAS CORE
Compare Editions
TrueCommand
Software Status
FreeNAS
Compare Systems
F-Series
M-Series
H-Series
R-Series
Mini Series
Download TrueNAS SCALE
Download TrueNAS CORE
Get TrueNAS Enterprise
Contact an Enterprise SpecialistTrueNAS Nightly Development Documentation
This content follows experimental nightly development software. Pre-release software is intended for testing purposes only.
Use the Product and Version selectors above to view content specific to a stable software release.
Kerberos Keytab Screens
2 minute read.
Kerberos is a computer network security protocol. It authenticates service requests between trusted hosts across an untrusted network (i.e., the Internet).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!
If you configure Active Directory, TrueNAS populates the realm fields and the keytab 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 TrueNAS 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.
The Kerberos Keytab widget in the Advanced Settings on the Directory Services screen displays added keytabs.
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.
The Kerberos Realms screen displays a list view of realms configured on your TrueNAS system.
Actions includes the option to Add a new keytab. Add opens the Add Kerberos Keytab screen.
The 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.
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!
| Setting | Description |
|---|---|
| Name | Enter a name for this Keytab. If configured, TrueNAS populates this field with what it detects in Active Directory. |
| Kerberos Keytab | Browse to the keytab file to upload. |