DotNetNuke Error: - Version 04.09.00

Domain Name Does Not Exist In The Database

DotNetNuke supports multiple portals from a single database/codebase. It accomplishes this by converting the URL of the client browser Request to a valid PortalID in the Portals database table. The following steps describe the process:

  1. Web Server Processing
    • When a web server receives a Request from a client browser, it compares the file name extension on the target URL resource to its Application Extension Mappings defined in IIS.
    • Based on the corresponding match, IIS then sends the Request to the defined Executable Path ( aspnet_asapi.dll in the case of ASP.NET Requests ).
    • The aspnet_isapi.dll engine processes the Request in an ordered series of events beginning with Application_BeginRequest.
  2. HttpModule.URLRewrite OnBeginRequest ( UrlRewriteModule.vb )
    • The Request URL is parsed based on the "/" character
    • A Domain Name is constructed using each of the relevant parsed URL segments.


      URL: = Domain Name:
      URL: = Domain Name:
      URL: http://localhost/DotNetNuke/default.aspx = Domain Name: localhost/DotNetNuke
      URL: = Domain Name:
      URL: = Domain Name:
    • Using the Domain Name, the application queries the database ( PortalAlias table - HTTPAlias field ) to locate a matching record.

      Note: If there are multiple URLs which correspond to the same portal then you can add multiple records to the PortalAlias table pointing to the same portal (PortalId).

      Note: If you are installing the application to a remote server you must modify the HTTPAlias field value for the default record in the PortalAlias table according to the rules defined above.

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