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Unable to connect to database.

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Dillip

New Around Here



Posts:9
New Around Here




2/9/2022 7:32 AM

    While installing DNN as per the documentation, It is showing Sql login failed.

    I have created a Database for DNN and also a Login name & password created and mapped to the DNN Database.

    Could you please help me in figuring out the issue.

    Thanks in advance.

     






    Sebastian Leupold

    Veteran Member



    Posts:539
    Veteran Member




    2/9/2022 7:58 PM
      despite the documentation, I prefer using integrated Windows login. This requires to create a SQL Server account named "IIS AppPool\[AppPoolName]" where you need to replace "[AppPoolName]" by the name of your IIS Application Pool. This Windows Account also needs to be granted write permission for the IIS Website hosting your DNN instance and in Advanced Settings of the IIS App Pool, "Identity" needs to be set to "ApplicationPoolIdentity".
      In your web.config, you don't need to specify user or password, just add "Integrated Security=true".
      This is the easiest and most secure configuration.





      Joe Craig

      Veteran Member



      Posts:1236
      Veteran Member




      2/10/2022 8:01 AM
        In addition to what Sebastian said, you should use SSMS (SQL Server Management Studio) to verify your credentials for connecting to the database.
        Joe Craig
        DNN MVP
        Patapsco Research Group





        Sebastian Leupold

        Veteran Member



        Posts:539
        Veteran Member




        2/10/2022 8:29 AM
          SSMS is usually the best tool to manage your SQL Server and databases, including backups. If, for some reason, you can't install it on the server, you may check login credentials as well using ODBC manager in computer management.





          Michael Tobisch

          Veteran Member



          Posts:1124
          Veteran Member




          2/10/2022 8:29 AM
            If your IIS and SQL Server are not on the same machine it could be also Firewall rules that block the access.

            Happy DNNing!
            Michael

            Michael Tobisch
            DNN★MVP

            dnnWerk Austria
            DNN Connect





            Dillip

            New Around Here



            Posts:9
            New Around Here




            2/11/2022 9:17 AM
              I tried with integrated Security but showing up error as below :

              Database Connection Error

              ERROR:Index #: 0
              Source: .Net SqlClient Data Provider
              Class: 11
              Number: 4060
              Message: Invalid Database

              Index #: 1
              Source: .Net SqlClient Data Provider
              Class: 14
              Number: 18456
              Message: Sql login failed





              Sebastian Leupold

              Veteran Member



              Posts:539
              Veteran Member




              2/11/2022 9:36 AM
                did you check the SQL server user account for its default database (the user needs to have access) and did you grant access permission to this user for the DNN database you are trying to access?
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