Application Cannot Connect To SQL Server 2005.

Jun 28, 2007

I am having a strange problem. I have an application that to connects to SQL Database in SQL Server 2005.

When I run the application with Visual Studio everything works fine but when I deploy the application on my web server and then to access the site .

 I get an error : Login failed for user ''. The user is not associated with a trusted SQL Server connection.

For some reason the application is not passing the user name . I have checked the IIS and authentication is set to Integrated Windows Authentication .

 

My connection string is correct as well

 

 <add name="xxxxx" connectionString="Data Source=xxxxxx;Initial Catalog=xxxx;Integrated Security=SSPI" providerName="System.Data.SqlClient"/>

I will appreciate any kind of assistance in this matter. Thanks

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Can't Connect To Sql Server 2005 From My Asp.net Application

Apr 3, 2006

Hi
I can't connect to sql server 2005 from my asp.net web page. I seem to be able to connect to it when i run the application from within visual studio but i can't connect to it when i run the application from IIS.I am new to sql server 2005 express so please bear with me.The error message i get is: Cannot open database "Vets" requested by the login. The login failed.Login failed for user 'OSCAR2K4ASPNET'.I don't know where this user OSCAR2K4ASPNET came from but i looked in sql server 2005 and there he is. In the left hand pane I went to Security and then logins and found oscar2k4asp.net there. I went to the properties for this user and went to User Mappings. There was no tick next to my Vets database so I added one and ran the application from IIS. I also added the user to every single role in the vets database (including dbowner). I also went into the vets database itself and found the oscar/aspnet user and made sure he was added to every role.
I ran the application again. This time i got a lots of different errors. If the page was trying to run a select procedure I got the error user does not have select permission. If the page was running an SP i got the error or user does not execute permission
I have never had this problem before so I don't understand.Where did this user come from? Was he created automatically when i configured my database for membership and roles? How do i set up this user so he can access the databsae from IIS.
The only way I could get the application to run from IIS was to go to Security - Logins for sql server and add the oscar2k4asp.net user to the sysadmin role.
I find this very strange. Naturally i don't want to leave oscar2k4 in sysadmin.
Please help :) I can't upload my website until i fix this
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Dec 12, 2006

All,
I'm a newbie here so forgive me if I have missed something completely obvious.
 I have bought a shopping cart script of a well known company (Evolve Merchant 5) and I wish to set it up locally on my development server, I created a virtual directory, set the web application up and get the asp pages to display perfectly. However, in the configuration file (global.asa & web.config) for the application it reguests information to be provided: <add key="DBName" value="Database name" />
<add key="DBServer" value="IP address of server" />
<add key="DBUserName" value="User name" />
<add key="DBPassword" value="password" />
<add key="AltPassword" value="password" />


 What I can't determine is what the SQL Server 2005's IP address is? the pages of this application show when I type http://localhost/catalogue into IE, so I presumed the server address would be the IP of localhost, when typed ping localhost into command promt it gives me 127.0.0.1, but when I enter this into the config file and try to load the application it just hangs and then eventually says:
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I have created a new database in SQL Express called: merchant509 and restored the tables to it as the manufactures help files state, I created a new login called shop which uses SQl authentication, so as I can provide a password. So the settings should look like this:
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<add key="DBServer" value="127.0.0.1" />
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<add key="AltPassword" value="1684" />
 
But it doesn't work, does anyone know what i have done wrong?? the SQL server is runnign on the same computer as I am trying to access it from, it is set to accept all forms of comunication i.e. TCP/IP etc.. in the server configuration manager the IP address part of TCP/IP in protocols shows IP1 as 192.168.2.2 active yes enabled yes, and IP2 as 127.0.0.1 active yes and enables yes, I have tried the 192.168.2.2 and this gives the same errors, this is my registed IP on my home network.
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Regards,
Daniel Coates
 
 
 
 

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Hi,

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Here is the situation:

I have SQL server express 2005 installed on my pc as instance SQLEXPRESS.

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****************************************************************************************************
Dim lconnectionString As String Dim builder As New SqlConnectionStringBuilder Dim cmd As New SqlCommand Dim reader As SqlDataReader Dim parameter As SqlParameter builder("Data Source") = ".SQLEXPRESS" builder("Initial Catalog") = "" builder("AttachDbFilename") = "C:My DocumentsVisual Studio 2005Projectsabcabcabc.mdf" builder("Integrated Security") = True builder("User Instance") = True lconnectionString = builder.ConnectionString Dim sqlConnection1 As New SqlConnection(lconnectionString) cmd.CommandText = "SP_add_collection" cmd.CommandType = CommandType.StoredProcedure cmd.Connection = sqlConnection1 sqlConnection1.Open()
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It seems that i can not connect to the abc.mdf in SSMSE while the VB program is running. (ERROR:
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If i connect to the abc.mdf first in SSMSE, then run the VB program afterwards, it gives me the error on this line -- sqlConnection1.Open()

I want to be able to access the abc.mdf database with both SSMSE and VB at the same time. Could anyone help me on this ?

Thanks very much !

apple

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Hi

I developped an ASP.Net application (with Web Dev Express ) wich attempt to connect to SQL Server Express (installed in the local machine) using Windows authentication.When i launch my application within Web Dev or from IE navigator i receive the following error message : Cannot open the database 'MyDB' login failed for user ServerNameASPNet.I use SQL Server Management Studio Express to give the user ServerNameAspNet permission to connet to the database but i still receive the same error message.I created a user with strong password within Management Studio with connect permission and attempt to connect from my application using SQL Server authentication i receive the error message : The user 'UserName' is not associated with a trusted connection for SQL Server.Note that when i use the Connect to Database tool in Visual web dev the connection success when i use Windows authentication but fails when i use SQL Server authentication with the same error message above.My OS is WXP Pro SP2

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Database Server:
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Hi all.

I have developed a VB6 program which will activate an Application Role to UPDATE and INSERT some tables in SQL Server 2005.

My program will login with a username, say USER and then run with the rights of the Application Role which will SELECT, UPDATE and INSERT the following tables:
1) Table A
2) Table B
3) Table C

The USER login is a restricted user which has only SELECT permission to Table A, B and C.

I encounter a problem in which my program can only UPDATE table B and table C but Table A. I have double checked the settings of Table A, Table B and Table C. Theirs are all same. Fyi, the column which can't be updated is of type "datetime".

Once i grant USER login UPDATE permission to Table A, my program works perfectly in which it can UPDATE all the tables including Table A.

I have tried for almost 2 days but am still clueless. Any ideas?

Thank you so much.

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