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Starting May 1st, 2018, we will no longer offer the ArchiveOne family of products. This includes all editions of ArchiveOne, ArchiveOne for Files, Max Compression, and Access Security Manager. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support until your contract expires, or until May 1st, 2019, whichever occurs first. The license for ArchiveOne is perpetual; therefore the software may continue to be used independently without any updates or support indefinitely.

How to Resolve Users Receiving Authentication Prompts when Using Windows Authentication for AOneSearch Website

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This article applies to Barracuda ArchiveOne version 6.5 or later.

The Archive search website (AOneSearch) can be configured with either forms-based or Windows integrated authentication. Windows integrated authentication may be preferable for users as they do not have to enter their credentials to log in to the Archive search website. If Windows integrated authentication is configured, but the user still receives a Windows dialog from the server prompting them to authenticate, confirm the configuration is correct.

Step 1. Ensure the AOneSearch URL is in the Local Intranet Zone

If you are logged in to a domain, Microsoft Internet Explorer (IE) only allows integrated authentication to a website in the domain if the site name is not deemed to be external. If you connect to a web server using the machine name, you are not challenged for a username/password. However, if you use the Fully Qualified Domain Name (FQDN) or IP address, you are challenged to authenticate. By adding the AOneSearch URL to the Local Intranet Zone in IE, the FQDN is considered part of the intranet, and therefore trusted, so your domain login is honored as authentication to the website. The addition of the FQDN or IP address for a server to the list of intranet servers can be centralized so that it automatically applies to all users who log in to a domain, using Group Policy. To apply the setting manually:

  1. From the Tools menu, select Internet options.
  2. On the Security tab, select Local intranet, and click Sites.
  3. Click Advanced, and enter the required URL, for example,, and click Add.
  4. Click Close, and OK in the remaining dialog boxes to save the configuration.

Step 2. Ensure Kernel Mode Authentication is Enabled on the Website

As the ArchiveOne Search & Retrieval websites component is commonly installed on web servers which host other applications (e.g. OWA), enabling Kernel mode authentication allows for multiple application pools which run under different identities to use Windows integrated authentication (for more information see the MSDN blog IIS 7 and Kernel mode authentication). To check Kernel mode is enabled:

  1. On each web server, open IIS Manager.
  2. Browse to the AOneSearch website under Default Web Site.
  3. Double-click Authentication in the Features View.
  4. Select Windows Authentication, and click Advanced Settings in the far right pane.
  5. Ensure Enable Kernel-mode authentication is selected, and click OK.


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