SqlConnection WITHOUT Integrated Security - Login Failed
Mar 30, 2005
Any idea why I cannot connect to a SQL Server database using SqlConnection and no Integrated security? I get a "Login failed for user 'XXXX'" error. The user ID and password I am using are all correct and have the required access (tested several times from different places).The connection string I am using is:
"Server=XXXXX;Database=XXXXX;Trusted_Connection=fal se;User ID=XXXX;Password=XXXXX"
I have also tried replacing "Server" by "Data source", "Database" by "Initial catalog", "Trusted_Connection" by "Integrated security", "User ID" by "UID" and "Password" by "PWD".Any ideas?
Thanks in advance!
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Aug 1, 2006
Hello Everyone,
I am trying to connect SQL database through code but I get this error,I have spent days to solve it but unfortunately I couldn't...Here is my code in VB express(OP:windows 2000 with SP4)I am new to VB,so it makes the situation more difficult for me.
my code is:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim conn1 As SqlConnection = _
New SqlConnection("Data Source=.SQLEXPRESS;" & _
"Integrated Security=SSPI;" & _
"database=deneme3_database;")
'Open connection
conn1.Open()
MessageBox.Show("Connection succeeded.")
'Close connection
conn1.Close()
MessageBox.Show("Connection closed.")
End Sub
The error message is,it is in german but it is clear I guess:)
" Die von der Anmeldung angeforderte "deneme3_database"-Datenbank kann nicht geöffnet werden. Fehler bei der Anmeldung.
Fehler bei der Anmeldung für den Benutzer 'ADPLANatalay'. "
Thank you in advance!
Can
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Jan 4, 2006
Hi, Happy New Year!
I have been struggling with this problem for a while with SQL 2005. I have never had such login problem with SQL 2000. Here is the scenario:
I have installed SQL2005 standard version on a XP Pro box and I am trying to access it from another XP Pro machine. I can access it using a SQL user name and password that I set up on the server, but I have not had luck with using Windows NT Integrated security. When I try to connect to it (e.g. by a UDL file), I get an error saying Login failed for user €˜HP-AMD64Guest€™ where €˜HP-AMD64€™ is the name of the PC running the SQL 2005. I can access the files on the machine without any problem. I do not understand why it uses €˜Guest€™ that is not what I use to log on my machine. Does anyone have any clue to offer me?
Thank you in advance!
h
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Jun 17, 2006
I got a website using .Net v2.0.xxx and SQL Server Express 2005 in a Win2003 Domain Controller machine. Both website and SQLServer is running on the same machine. Website and SQLServer are configured to accept only Integrated Windows Authentication. Domain Users group is added in SQLServer logins list and given Read and Write access to the database used by the website. Also Domain Admins groups is added and given full permission to the same database.
I thought since website will run only with login details from Active Directory, SQL Server connection is also going to be validated against the same login details. But I felt I got the whole concept wrong when I received the error mentioned in subject line.
Can anyone please explain the best way to connect to database in above-mentioned context. Please remember that I need to implement different rights on the database for 'Domain Users' and 'Domain Admins' group. If there is a better approach than using these groups, lemme know please.
Thanks,
AbdulGafoor GK
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Feb 11, 2008
Hello, I started profiling a website that i'm developing yesterday (asp.net 2.0) and noticed that sqlconnection.open is ridiculously slow (between 3-10 seconds) when using integrated security=true in the connection string. If I use SQL authentication instead and pass the username and password in the connection string, sqlconnection.open is instantaneous.
My enviornment is as follows:
Sql server is on a win2003 x64 server.
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Aug 8, 2007
Hello,
We're having a bit of a problem getting Integrated Security to work with a .Net 2.0 application and SQL 2005. While we're tweaking permissions on the SQL-side, we came across an account "Application Login" and wondered what its role is. First, our problem:
Currently, the users in the AD group get a connection error. This group is defined as follows at the instance level:
role: public
user mapping: to the database without any default schema
securables: none
status: grant and enabled
At the database security level:
general: none
securables: execute on all (100+) stored procedures
And we gave them "Execute" on the database itself.
A little background: we had detached and copied this database from one server to another. So we suspect that the Application Login may have been modified/corrupted, even though it appears to be identical between the original and the copied databases. So we redefined it on the copied DB to match the original.
Another group, which is defined as dbo on the database, has no problem at all connecting and running the application.
The Application Login has Execute permissions on all stored procedures and Delete, Insert, Select, Update, and View Definition on the ChangeLog table. It also has db_DataReader, db_DataWriter, and db_ddlAdmin roles associated with it.
Is there another SQL login required for initial connection to the database even though Integrated Security=SSPI is used in the connection string?
Does anyone see where we may be missing a security setting for the non-dbo user group to connect to the database?
Thanks very much for any suggestions, ideas ....
Cheers,
Tess
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Mar 6, 2005
ok thi is my code for test
SqlConnection conn = new SqlConnection("server=majed13;Integrated Security=SSPI;");
conn.Open();
conn.Close();
connection is OK
the user logged in SQL Server is ASPNET USER
i want looged in current NT USER not ASPNET USER
thanx in advance
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Dec 16, 2005
I 'm a newbie to SQL Server, been using Access as a database for my web app. and have decided I need the power of SQL Server. Using VWD Express, I am able to generate a SQL database with my tables and stored procedures quite easily as well as access the database from my asp.net code. This works fine on my devlopment machine. But now I want to deploy on my remote server and the webhost says they can attach my SQL database but they need my SQL login info. So I have a couple of questions:
1. Does the SQL database I create in VWD express only work in Integrated Security mode or can I assign a username & password to the .mdf file so I can upload to my remote host to work in a shared SQL environment?
2. Or am I confused and the .mdf file is just a data file which can be attached to any SQL account and the SQL login info only pertains to the instance of SQL Server that I'm trying to connect to?
3. My web host mainly uses SQL Server 2000. Will a simple database created in SQL Server 2005 Express work on an instance of SQL Server 2000?
If I can just figure these simple items out, I will be ecstatic!
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Jun 19, 2006
We are having some commercial applications that are running on sql servers at different sites, all with sql security. The software vendor wants to copy data into staging tables on our BI server. But our BI server only support Integrated security.
But how can i say, in the definition of a linked server (at the remote machines) to swicth security system ?
If it is possible i could enter a fixed domain-account in that users fields, but i suppose that this field was intended for SqlServer security.
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Nov 21, 2006
hi
i have created a username and a password in sqlserver 2000 from logins in Enterprise manager
and i permit him to the database i need to connect to ..
and i check all server roles for that user and i make sqlserver authentication for him with a password and then i goto the udl file to connect to that database using that user it fails !! and says
"login failed for that user 'myusername' reason not associated with a trusted sqlserver connection"
while i use NT integrated security it works well
so how can i connect to sqlserver using a username and a password
thanks in advance
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Jun 21, 2006
When logged in as a member of the admin group on my box, I cannot connect to my localhost server (SS2005 SP1) using sqlcmd.
sqlcmd -s localhost
Server logs say:
Error: 18456, Severity: 14, State: 11.
Login failed for user 'NORTHAMERICAdavigust'. [CLIENT: <local machine>]
I can connect via Management Studio, which triggers the User Access Control stuff.
How do I get sqlcmd to connect when running as a Standard User?
Dave
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Apr 23, 2007
I have lots of problems with the connection. I've connected many dropdownlists to the database and i didn't have problems at all. I also try an example of an ASP.NET book:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString= "<%$ ConnectionStrings:CIPPEC%>"
InsertCommand=
"INSERT INTO
[member] ([first_name], [last_name], [malefemale], [yearborn])
VALUES
(@first_name, @last_name, @malefemale, @yearborn)">
<InsertParameters>
<asp:FormParameter Name="first_name" Type="String"
FormField="FirstTextBox" />
<asp:FormParameter Name="last_name" Type="String"
FormField="LastTextbox"/>
<asp:FormParameter Name="malefemale" Type="Int32"
FormField="MFRadioButton" />
<asp:FormParameter Name="yearborn" Type="Int32"
FormField="YearDropDown" />
</InsertParameters>
</asp:SqlDataSource>
And it worked well. But when i try to connect my page with:
Dim connect As New Data.SqlClient.SqlConnection( _
"Server=glgrand-arSQLEXPRESS;UID="WindowsStartupUser";password="WindowsStartupPass"; database=CIPPEC")
connect.Open()
Dim cmd As New Data.SqlClient.SqlCommand( _
"INSERT PRUEBA (PersonaJuridica, NombreRazonSocial, Nombre, Segundo_nombre, Apellido) " & _
"VALUES (txtPerJur, txtRazSoc, txtName, txtSecondName, txtApellido)", _
connect)
cmd.ExecuteNonQuery()
connect.Close()
The error message says: Login failed for user 'username'.
I tried lots of things but it didn't work:
In SQL Configuration Manager:
Client Protocols: TCP/IP and Named Pipes are enabled.
In SQL 2005 Services: Server Properties: Built-in Account: Local System
SQL Server Surface Area Configuration: Remote connections: Using both TCP/IP and Name Pipes connection is selected.
In SQL Management Studio i created a new login glgrand-ar/UserStartupName , with sysadmin server role and user mapping my CIPPEC database.
I don't know what else i could try, i tried it at home and at work and i couldn't connect to my database and make an INSERT. It stops at Connect.Open() with the error that i wrote in this subject message.
It's evident that i'm doing something wrong (because i'm new): Could you please help me with a solution and explain me what are the data that i have to put on the Data.SqlClient.SqlConnection ?? I'm using the Windows authentication: i'm putting my username and password and it doesn't worked.
Thank you!!
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Mar 7, 2006
Hello, I have a sql 2005 server, and I am a developer, with the database on my own machine. It alwayws works for me but after some minutes the other developer cant work in the application
He got this error
Login failed for user ''. The user is not associated with a trusted SQL Server connection. [CLIENT: 192.168.1.140]
and When I see the log event after that error, it comes with another error.
SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated security; the connection has been closed. [CLIENT: 192.168.1.140]
He has IIS5 and me too.
I created a user on the domain called ASPSYS with password, then in the IIS on anonymous authentication I put that user with that password, and it works, on both machines.
and in the connection string I have.
<add key="sqlconn" value="Data Source=ESTACION15;Initial Catalog=GescomDefinitiva;Integrated Security=SSPI; Trusted_Connection=true"/>
I go to the profiler, and I see that when he browses a page, the database is accesed with user ASPSYS, but when I browse a page, the database is accesed with user SElevalencia.
Thats strange.
The only way that the other developer can work again on the project is to restart the whole machine. He has windows xp profession, I have windows 2000.
If you want me to send logs please tellme
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Nov 19, 2015
We have a Web application that requires user authentication. We have a Login Page for user's to login and be authenticated. We also manage the user accounts using SQL Server Membership Provider. We created aLogin user in SQL Server and used this user's privileges to connect to SQL Server in our website's connection strings. Example, in our Web.config file, the connection string is:
<connectionStrings>
 <addname="MyConnectionString"connectionString="Server=MYSERVERNAMESQLSERVER2012;Initial
Catalog=MyDatabase;User Id=TUser;Password=MyPassword"providerName="System.Data.SqlClient"/>
</connectionStrings>
The problem now is when a user logs in, it's throwing an error that TUser's password has already expired. We did not enforce the password policy and expiration date for this user. So, I'm wondering why it's giving me this error.
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Dec 4, 2014
I use from sql server 2008. and c#
what is the best connectionstring?
I don't know if i use Persist Security Info and Integrated Security or not?
And if yes then their value must be true or false?
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Jun 19, 2015
Any way to find out who's causing "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection." error in SQL Server error logs?
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Apr 26, 2007
hi i want to know what is the differance between
Persist Security Info=False;Integrated Security=Yes;
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Mar 18, 2007
hi,
so i have a new box and I'm trying to get my websites and SQL Server 2005 Standard Edition working on it, but the pages give me the following error when I try to load them:
"Cannot Open Database "XXXX" requested by login. The login failed. Login failed for user 'xxx'"
Everything seems exactly the same settings and user-wise from my old box to my new one, but nevertheless everything I've tried gives me the same error.
I've tried creating new users in SQL Server and giving them appropriate permissions to my database. I've even tried just using the built in 'sa' account. Nothing seems to change the error, except when I give it the incorrect password then it just says 'login failed'
This leads me to believe that i'm successfully logging into the SQL Server, but it doesn't want to give me access to the database I'm requesting access too. But "apparently" the account i'm using should have access to the database. If nothing else the 'sa' account should, but that didn't work either.
I'm stumped. Any ideas?
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Jul 6, 2007
I have Sql Server Express installed on Vista (service pack 2)
I have Visual Studio 2005 with an application that I'm trying to access it with within a WCF service.
The login ID of the service is added to the database.
The database has remote access turned on.
The ID is granted access to all databases within the server.
The thread is being set with WindowsProvider and the services set their thread to WindowsProvider.
The dataserver is set with using Windows Authentication for security.
When I open my connection to the database, though, it reports the typically useless message that the connection is not allowed and that the server may not allow remote connections.
How to I get past this? I've done everything right.
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Jul 30, 2007
I have created an aspx page that uses the SqlConnection class to pull data from Microsoft CRM’s database, and we have placed this aspx inside CRM’s directory on the server so that it uses the same integrated security that CRM uses. This works fine on our test environment but on our live environment the Sql connection fails with the exception: "Not associated with a trusted SQL Server connection"
This is probably because our test CRM server has the database on the same machine as the web server, but the live environment has the database and the web server on separate machines.
So my question is how can I create an aspx page that takes the integrated security credentials that the user used to log into the website and uses them to access data from a database on a seperate machine?
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Mar 13, 2007
We have a SQL 2000 Active/Passive cluster running on Windows 2000. On one node, everything logs in fine (second node is powered off). I can use local authentication fine in OSQL (-E) and even see my connection in SQLEM current activity as [DomainUser] for the NT account which I am logged in as. Then I bring the second node online and initiate a failover. SQL Server starts but Cluster Admin cannot connect and starts throwing this Anonymous Logon error. I open a command prompt and try the same OSQL (-E) local login and sure enough it is also giving the Anonymous Logon connection user. I do not understand why the failover to a second node is causing the Trusted Connection Local authentication to switch to Anonymous instead of the [DomainUser] which I am using. Any help is appreciated. John.
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Sep 5, 2007
if one connects to SQL server (2005) with integrated security, does sql server connect to ADS in order to verify the credentials or does windows handle the authentification mechanism ?
thanks
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Oct 3, 2005
Does anyone know how to impersonate a user and then use integrated security with SQL server? Every place I've looked so far only shows how to use integrated security through IIS. For some reason, everytime I impersonate a user account, SQL server identifies me as "NT AUTHORITYANONYMOUS LOGON" Is this by design? or am I doing something wrong?
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Sep 5, 2007
If one connects to sql server (2005) with integrated security, does sql server connects to ADS in order to verify credentials or does windows handle the authentification mechanism ?
Thanks.
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May 11, 2007
Hello,
I'm new to ASP, but developping in Sql for years.
What we would like to have is that the user is accessing the database over it's own Windows Logon. Our triggers log quite some changes and are using UserName() for this. I've treid to force the IIS to accept Windows Integration only, the SqlDataSource users a connection that has Integrated Security = True. But when connection to the site i'm gatting error that there is no trusted connection for the user . (dot) ...
I suppose i'm missing something but could you give me a hint where to start looking..... THX
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Dec 2, 1999
We have a a DTS package set up to run against another SQL Server. Using an integrated login is there a way to map an NT Authenticated users is
the sql server login id mapping to this attached server. The DB we are going against only uses NT authentication to attach to.
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Apr 7, 1999
Hi All,
Can we implement a table level (object) security on the groups of the windows NT domain using the integrated windows NT security so that one group has
the permission over one table to update ,select ,delete the information and other group has permission has for some other table.
Thanks
Ajay
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Aug 8, 2007
or do i need to setup SQL security users and logins.?
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Mar 2, 2004
I've an web app with impersonate windows authentication. IIS uses Windows authentication for this app & anonymous authentication is turned off.
This app have connectionString in Web.config where Windows autentication (SSPI) to SQL Server 2000 took place.
Now I've a piece of code:
public class SiteParameters
{
public static SqlConnection Connection
{
get
{
SqlConnection conn;
try
{
conn = new SqlConnection(ConfigurationSettings.AppSettings["connectionString"]);
if(conn.State != ConnectionState.Open)
conn.Open();
}
catch(Exception)
{
conn = null;
}
return conn;
}
}
}
No comments is needed, think...
Now, I'm going to use it in following way:
SqlConnection conn = SiteParameters.Connection;
SqlDataAdapter dta = new SqlDataAdapter();
DataSet ds = new DataSet();
SqlCommand sqlSelect = new SqlCommand("spPlanTransportSelect", conn);
sqlSelect.CommandType =CommandType.StoredProcedure;
dta.SelectCommand = sqlSelect;
dta.Fill(ds, "PlanTransport");
if(conn.State != ConnectionState.Closed)
conn.Close();
return ds;
It looks good & works good... on local machine only :( When I run app locally (doesn't matter if I call it by http://localhost/app, http://127.0.0.1/app or http://10.50.2.51/app I take proper data from database.
But when my buddy from another comp (e.g. 10.50.2.52) uses URL http://10.50.5.51/app he receives an error in line dta.Fill(ds, "PlanTransport");, but in fact conn variable is null & he receives "yellow" screen where is written that NT ANONYMOUS user is trying to log on to database...
It looks strange for me. Any tips?
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Jul 10, 2004
I tried connected my web form with SQL server by drag a table from Server Explore onto the WebForm1.aspx. page. It created a sqlConnection1 and a sqlDataadapter object, but theses two objects seem not work. There is nothing displayed on property window and when I right-click sqlDataAdapter there is no "Preview Data", "Configure Data Adapter" and "Gnerate Dataset" items displayed as well.
I used this SQL server on Windows Form, it worked very well. Could anyone please help me figure it out. Thanks!
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Apr 16, 2008
Hi when i try and open a database in sql server management studio i get the error "Cannot open user default database. Login failed. Login failed for user 'DOMAINUser'. (.Net SqlClient Data Provider)", what can i do to rectify this, i have googled around and still havent found no answers.
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Oct 27, 2004
Hi,
Im getting this error when attempting to retrieve data from an sql database.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open database requested in login 'projectAllocations'. Login fails. Login failed for user 'sa'.
Source Error:
Line 13: objConn = New SqlConnection( "Server=LAB303-066NETSDK; Database=projectAllocations; User ID=sa;Password=mypassword")
Line 14: objCmd = New SqlCommand("SELECT * FROM project_descriptions", objConn)
Line 15: objConn.Open()
Line 16: objRdr = objCmd.ExecuteReader()
Line 17: While objRdr.Read()
Source File: C:finalyearproject2sample.aspx Line: 15
Please Help!! Im a beginner to this, so if anyone knows the answer, take baby steps when explaining. Thanks
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Jul 27, 2005
Been looking through the forums for a solution to this problem.I already tried granting access through statements such as:exec sp_grantloginaccess N1'machineNameASPNET'But they don't seem to work.. i vaguely remember seeing somewhere a DOS command line statement that grants access to the ASPNET_WP and that fixed my problem before on another computer.. but this is a new computer and i forgot to write down the command.Can anyone help explain and propose a solution to my problem. Many thanxs.
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