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Barracuda NextGen Firewall X

This Firmware Version Is End-Of-Support

As of December 1st, 2018, all new sales for Barracuda NextGen Firewall X Series products have ceased. Only renewals of software and hardware subscriptions for a maximum of one year are available for a limited time. December 1st 2019: All Barracuda Firewall X-Series sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires, or until the End of Life definition as described in the End of Support and End of Life Information.

How to Configure NTLM Authentication

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Integrate the Barracuda NextGen Firewall X-Series with your NT LAN Manager (NTLM) authentication server to authenticate NTLM domain users via their Microsoft Windows credentials. To enable transparent authentication against your NTLM server, join the X-Series Firewall to the NTLM domain as an authorized host.

Step 1. Configure NTLM Authentication

  1. Go to the USERS > External Authentication page.

  2. Click the NTLM tab.

  3. Enter the NTLM/Kerberos realm name in the Domain Realm field.

    Always enter the Domain Realm in uppercase letters. E.g., MYDOMAIN.COM

  4. Enter the Netbios Domain Name.

  5. (Optional) Enter the MS Active Directory Workgroup Name.

  6. In the Domain Controller field, enter the hostname or IP address of the domain controller.

    The hostname must be DNS resolvable.

  7. (Optional) Enter the hostname of the domain's Windows Internet Name Service server in the WINS Servers field.

  8. Select the authentication scheme to retrieve group information from.
    ntlm01_67.png

  9. Click Save.

The configuration is now added to the EXISTING AUTHENTICATION SERVICES table.

Step 2. Join the X-Series Firewall to the Domain

Join the X-Series Firewall to the NTLM domain as an authorized host.

  1. Go to the USERS > External Authentication page.
  2. Click the NTLM tab.
  3. Enter the Windows Domain Username.
  4. Enter the Windows Domain Password.
  5. Click Save.
  6. Click Join Domain.

ntlm02_67.png

You can check the status of the domain registration by clicking Registration Status.

Your NTLM domain users can now authenticate on the X-Series Firewall using their Microsoft Windows credentials.

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