What's the correct way to set up impersonation & SQLExpress
Here's the error I'm getting:
Cannot open database "aspnetdb" requested by the login. The login failed. Login failed for user '***ASPDATA'.
SQL Express in installed on C:
aspnetdb was set up from aspnet_regsql.exe, on IIS manager - asp.net tab - edit configuration this string is there:
data source=.SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true
The aspnetdb is located in C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLData
The ASP.Net web is on D:
webconfig file has: <add name="LocalSQLServer" connectionString="Server=.SQLEXPRESS;Database=aspnetdb;Trusted_Connection=Yes;" />
<authentication mode="Windows" />
<identity impersonate="true" userName=aspdata@xxx.org password="xxx" />
Should I take a copy of aspnetdb and put it in the web app_data folder?
Jess
Hi All, How can I add sql server express sp1 or sp2 into a setup project I created for an application. Normally sqlserver express is a prerequisite for my app and in deployment vs only adds sqlexpress not the sqlexpress with sp1 or sp2. I know that I need those to make my application run on vista. Any suggestion??
I have a windows application that connects to a SQLExpress database hosted on a shared server. The client machines will run an interface software and interact with the info within SQL The SQL database isn't huge (50 megs) and all of the info is text. The interface application isn't too complex either, it was designed using VB.net05. I have a few setup questions:
1 - Is it best to use Windows or SQL authentiaction? Currently I am using Windows authentication and I have a user group setup on the DNS that is setup as a user for the SQL database. That has worked so far, but I've only had a few users logged in at one time so far. My plan was to add all DNS accounts that will use the software to the DNS user group, thus giving them access to the SQL database.
2 - I know this gets asked a TON, but I am interested in knowing how many users I should be able to support using the current setup. I have the one user acount setup for the DNS user group. The SQL table is not huge and it is all reading and writing text. The server is running Windows Server 03 and is a couple years old (not sure of exact specs).
Thanks for any help, I am still learning my way around SQL and it's great to have such a vast amount of support for the product.
When installing SQLEXPRESS I am getting this message:
Setup failed because service MSSQL$SQLExpress is disabled for the current hardware profile. Services must be set with the current Hardware Profile logon property enabled.
The SQL ERRORLOG shows: Error is 3414, Severity 21, State 2 and says: "An error occurred during recovery, preventing the database 'model' (database ID 3) from restarting." Just prior to this, I get a warning: "did not see LP_CKPT_END".
Any thoughts why this might be and how I can fix this?
I want a user to be able to call a stored procedure, that will call an assembly, that will logon on to another SQL Server, perform some functions (calculations), and return the results. I want the user's credantals passed, NOT the SQL Server Account. So in some research, I created this:
Public Class SomeName <Microsoft.SqlServer.Server.SqlProcedure()> _ Public Shared Sub LinkedServer() Dim cmd As SqlCommand Dim dr As SqlDataReader Dim clientId As WindowsIdentity Dim impersonatedUser As WindowsImpersonationContext
' as usual, connection strings shouldn't be hardcoded for production code Using conn As New SqlConnection( _ "Data Source=SERVER1; Initial Catalog=master; Integrated Security=SSPI") conn.Open()
cmd = New SqlCommand( _ "SOME QUERY", conn)
dr = cmd.ExecuteReader()
SqlContext.Pipe.Send(dr)
End Using End If Finally If impersonatedUser IsNot Nothing Then impersonatedUser.Undo() End If End Try
Catch ex As Exception SqlContext.Pipe.Send("Error: " & ex.Message) End Try End Sub End Class
Now the issue is that I get this message when I execute this code with the Impersonation code.
Msg 10312, Level 16, State 49, Procedure spr_SQLServerAccess, Line 0
.NET Framework execution was aborted. The UDP/UDF/UDT did not revert thread token.
When I exclude the impersonation code, everything works, BUT executes under the SQL Server Account.
I have used this code to create the Assembly and Stored Procedure:
-- Register the assembly
CREATE ASSEMBLY SQLServerAccess
FROM 'c:linkedserver.dll'
WITH PERMISSION_SET=EXTERNAL_ACCESS
GO
-- Register the stored-procedure
CREATE PROCEDURE spr_SQLServerAccess
AS
EXTERNAL NAME SQLServerAccess.SomeName.LinkedServer
Any idea's on the error message that is being thrown by SQL WITH the Impersonation code?
I have created an installation application which will install the application with SQL Express and .NET Framework 2.0.
If i install this application in a Fresh system(i.e which is not having SQL Express), it is installing the application with new database instance successfully.
But if i try to install the same in a system which is already having SQL Express, throwing "Object reference exception" because it is not able to create the new database instance.
I like to use impersonation using multiple databases and a user with no login.
I'm working with Powerbuilder 10. I can change users using the command Execute Immediate "EXECUTE AS USER = 'username'". Unfortunately, I can't execute the command 'REVERT' from Powerbuilders Execute Immediate command. The Execute Immediate command prefixes the 'REVERT' command with a exec. ie. exec REVERT.
I thought I could encapsulate the REVERT command in a procedure and run the procedure using Execute Immediate. But, I'm new to SQL Server and I'm not sure if I can.
Does anyone know how to solve this problem? Thanks.
Hello all- Before I go any further, I have followed http://msdn.microsoft.com/en-us/library/ms188304.aspx as best possible. I am attempting to send mail through a DML trigger. We'll call the database 'DB', and it is owned by a domain account named 'DOMAINAcct'. The trigger simply blocks any CUD operations on a table which we'll call 'Tbl', and sends an email. Hence, it looks something like...
CREATE TRIGGER [dbo].[TR_Tbl_BlockChanges] ON [dbo].[Tbl] WITH EXECUTE AS OWNER INSTEAD OF INSERT,DELETE,UPDATE AS EXEC [msdb].[dbo].[sp_send_dbmail] @profile_name = 'AcctMail', @recipients = 'foo@bar.com', @subject = N'CUD operations not allowed on Tbl', @body = N'Blocked'
AcctMail is a valid profile and operates correctly. I have created the DOMAINAcct user in msdb, given it the AUTHENTICATE permission, and added it to the DatabaseMailUserRole. When the trigger fires, according to the article, the security context should switch to dbo (DOMAINAcct), then be successful when attempting to execute the msdb sproc. Instead I get the usual: Msg 229, Level 14, State 5, Procedure sp_send_dbmail, Line 1 The EXECUTE permission was denied on the object 'sp_send_dbmail', database 'msdb', schema 'dbo'.
I am installing an application that is a WCF service host running as a windows service under the Network Service account. As part of its configuration I am creating a connectionstring in a config file that will allow the WCF services to access SQL Server. I would like this access to be done using windows authentication not sql server authentication.
So since the windows service is running Logged in under the Network Service account using the above connection string would try to connect to sql server using Network service account. Instead I would like to impersonate another domain account which has has a sql server login and is a user in the database.
Is there a way to configure the connection string to use integrated security but to impersonate another domain user?
In the following scenario, I am getting the message 'Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection'.
I am running a Windows Server 2003 with development environment and Sql Server Management Studio in a workgroup on a virtual PC.
My SQL Server 2000 is running on a domain server.
On the virtual Pc I have setup my user login and password to be the same as my domain login and password. Why is the Management Studio not using impersonation and allowing me to connect to the SQL server on the domain?
This is driving me nuts, below is the C# for the proc as well as the runtime error upon calling EXEC on it. Any help would be appreciated. Using UNSAFE Permission Set.
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Security;
using System.Security.Principal;
public partial class StoredProcedures
{
[Microsoft.SqlServer.Server.SqlProcedure()]
public static void uspExternalConnection()
{
WindowsIdentity newIdentity = null;
WindowsImpersonationContext newContext = null;
try
{
//impersonate the caller
newIdentity = SqlContext.WindowsIdentity;
newContext = newIdentity.Impersonate();
if(newContext != null)
{
using (SqlConnection oConn =
new SqlConnection("Server=.\sqlexpress;" +
"Integrated Security=true;"))
{
SqlCommand oCmd =
new SqlCommand("SELECT * FROM AdventureWorks.HumanResources.Employee", oConn);
throw new Exception("user impersonation has failed");
}
}
catch (Exception ex)
{
SqlContext.Pipe.Send(ex.Message.ToString());
}
finally
{
if (newContext != null)
{
newContext.Undo();
}
}
}
};
Msg 6522, Level 16, State 1, Procedure uspExternalConnection, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'uspExternalConnection':
System.InvalidOperationException: Data access is not allowed in this context. Either the context is a function or method not marked with DataAccessKind.Read or SystemDataAccessKind.Read, is a callback to obtain data from FillRow method of a Table Valued Function, or is a UDT validation method.
System.InvalidOperationException:
at System.Data.SqlServer.Internal.ClrLevelContext.CheckSqlAccessReturnCode(SqlAccessApiReturnCode eRc)
at System.Data.SqlServer.Internal.ClrLevelContext.GetCurrentContext(SmiEventSink sink, Boolean throwIfNotASqlClrThread, Boolean fAllowImpersonation)
at Microsoft.SqlServer.Server.InProcLink.GetCurrentContext(SmiEventSink eventSink)
at Microsoft.SqlServer.Server.SmiContextFactory.GetCurrentContext()
at Microsoft.SqlServer.Server.SqlContext.get_CurrentContext()
at Microsoft.SqlServer.Server.SqlContext.get_Pipe()
Because of numerous problems trying to get sqlexpress working, I uninstalled it with the intention of reinstalling (via Add or Remove Programs). However, now when I try to reinstall it, I get a message that the I am not making a changes so it won't let me install it.
I do have sql server 2005 developer's edition installed; is that the reason? and does that mean I cannot have both installed on the same machine?
I am testing RS2008 CTP6. When I view a Adventureworks sample report (e.g. company sales) I get this errormessage when I use the option "Impersonate the authenticated user after a connection has been made to the data source" :
Cannot create a connection to data source 'AdventureWorks'.
Must declare the scalar variable "@ImpersonatedUser".
All other connection options without impersonate works fine. Any idea what can cause this problem?
I want to Access External resources inside the CLR Code... But I am getting Security Exception
I have marked Assembly with External Access... here is the way I am doing..
I read articles and MSDN .. everywhere is written to use impersonation like
using (WindowsIdentity id = SqlContext.WindowsIdentity)
{
WindowsImpersonationContext c = id.Impersonate();
//perform operations with external resources and then undo
c.Undo();
}
In above case .. I tried both Windows Authentications and SQL Authentications ...
In case of Windows.. I am have a domain login to logon to my pc, while sql server is at another machine and Active directory is at different machine .. when connect to Database .. it says cannot find user Domainnameuser
and the SqlContext.WindowsIdentity is always null or it has exception User.Toked thew Security exception.
After that .. I tried to user custome Identity .. using IIdentity =GenericIdentity("UserName","Windows");
But there is now difference .. still same exception .. as given below..
[Microsoft.SqlServer.Server.SqlProcedure]
public static void MyProcedure()
{
Process[] p = Process.GetProcessesByName("YPager"); //Yahoo messanger exe .. a process
p[0].kill();
}
A .NET Framework error occurred during execution of user defined routine or aggregate 'MyProcedure': System.Security.SecurityException: Request failed.
I have a user who is trying to run a job (call an Stored Procedure) which connects to a Linked Server. He can run it OK using EXEC SP_Name but when he runs from the SQL Jobs it gives him the error: Linked servers cannot be used under impersonation without a mapping for the impersonated login.[SQLSTATE 42000] (Error 7437). The step failed.The Linked Server was setup using another account. Would this be fixed if I add the new user to the Security section of Linked Server without breaking the current configuration?
As a bit of background first, I'm trying to write a CLR stored proc that will start/stop a Windows Service using the ServiceController class.
The problem I'm having is that the stored proc gets run as NT AUTHORITYNETWORK SERVICE - ie the user the SQLServer Windows Service runs as. This user doesn't have adequate permissions to start/stop a Windows Service (the user only has permission to view the service's status).
The Window's user who is connected to the db - executing the stored proc, does however have adequate permission to start/stop the Windows Service. I'd like to have someway of running the code in the stored proc as if it were this user. If someone could point me in the right direction I'd appreciate it.
I'm having trouble trying to access a network share that comes via a UNIX server running SAMBA. In the first case, I'm running on my local workstation (A), connected to a remote server (B), and attempting to access directory information for a path like:
\a0amsimmsworkseaborg argets11as2981
This path is fully accessible by me from the workstation (A) and the server (B). The files and directories below "work" in the above path are also wide open on the UNIX side (meaning r-xr-xrwx permissions). However, if I attempt to do something like this:
at System.IO.Directory.GetFiles(String path, String searchPattern, SearchOption searchOption)
at System.IO.Directory.GetFiles(String path)
at StoredProcedures.mdcinfo(Int32 sim_id, String mdc_base)
CWD is: C:WINDOWSsystem32
User is: amsimms
Initial is: dbserver
Interestingly, if I run the procedure directly on the server (B), I do not get the exception. So this seems to be more of a delegation problem. The server B's sql server instance is running as a domain account (dbserver), which has been enabled for delegation and an spn has been set up. Is there something beyond this either with the impersonate or delegation configuration that I need to do in order for this to work?
When publishing to a file share using Reporting Services (no service pack 2 yet) the following error occurs:
Failure writing file NewFile.mhtml : An impersonation error occurred using the security context of the current user.
I have tried publishing to both Windows XP and Server 2000. The Reporting Services box is Server 2003. Publishing account is Local Administrator on both Reporting Services and target boxes. Logon Locally has been granted on both Reporting Services and target boxes.
Hello All, Login failed for user '(null)'. I know this issue is all over the forum, however i have not found any posts that help me resolve the issue. Situation: I have an ASP.NET 2.0 application hosted currently on XP pro(will be moving to 2003 Server) which connects to a SQL 2000 database that resides on a different server. I have taken the following step to implement my security. Given my account permissions to the database Put the following in my web.config <add name="MyName" connectionString="Data Source=MyServer;Initial Catalog=MyDatabase;Integrated Security=SSPI" providerName="System.Data.SqlClient" /> <authentication mode="Windows" /> <identity impersonate ="true" /> I have set IIS to use integrated authentication and removed anonymous. The application works when run from the web server but not when run from a remote machine. Thank you for any asistance, George
We have a current situation where analysts will be modeling a variety of problems, all stemming from the same source data (stored in a SQL-Server 2005 relational database).
Analysts that work on the same problem will only have access to:
- A sandbox relational database (which contains views into the same source database). The analyst is db_owner of the sandbox database, so she/he can create data transformations required, etc. The sandbox database contains views to the source database, but the analyst only has read-access to the specific data elements needed from the source DB. So, they are very restricted w.r.t. the source database, but are db_owners of their sandbox relational databases. Note that the analyst will connect to the database via Windows Authentication.
- An Analysis Services sandbox database to use for their modeling, etc. In this AS sandbox db, we've created a role called "Administrator" and checked the permissions: Full control (Administrator), Process database, and Read definition. The analyst's windows account is the "user" associated with this role.
Also, in this situation, the SQL Server 2005 Relational Engine and Analysis Services are running on a single machine. The goal of this security model is to provide analysts with the ability to work in their "workspaces" (both SQL and AS), but not to see other analysts work, etc.
I'm running into a problem when trying to build models using this security model by doing the following: - Running Visual Studio - Selecting File -> Open -> Analysis Services Database and choosing the AS DB that I have access to (this is the only one that appears in the drop-down, after specifying the AS server). - I've created a data source pointing to the relational sandbox DB. - I've created a data source view choosing the table/view needed for the case table. - I created a mining structure with a decision tree model
When I process the mining structure, I'm getting the following errors:
- If the data source Impersonation is "Default" -- the error is "The datasource, '<DS name>', contains an ImpersonationMode that is not supported for processing operations."
- If the data source Impersonation is "Use the credentials of the current user" -- the error is the same as "Default" above -- "The datasource, '<DS name>', contains an ImpersonationMode that is not supported for processing operations."
- If I change the data source Impersonation to "Use the service account" and select "OK" in the "Data Source Designer" window, and error comes up with message: "The ImpersonationInfo for '<DS name>' contains an ImpersonationMode that can only be used by a server administrator.
Any suggestions or pointers to help implement this security model to provide analysts with AS and SQL Relational resources for their modeling?
Hi All,I've been struggling with this for hours...Could someone please advise me on how to convert my current File based SQL Server Express website to a Server based SQL Express one.Particularly interested in what I need to do in the SQL Express management tool, changes I need to make the projecvt itself and changes needed to get IIS to understand things have been changed.Thanks,Martin.
I have XP Pro SP2 with MDAC 2.8.1022. It had a problem so I tried to reinstall MDAC and got a Fatal Setup Error. This setup does not support installing on this operating system. I downloaded MDAC 2.8 1177 and get the same error.
I thought of uninstalling/reinstalling SP2, but this is a 2 month old Dell Latitude 610 with factory installed XP. There is no Windows Service Pack 2 option listed in the Control Panel > Add/Remove Programs.
There's some other strange things, so I wonder if they are related.
1) I have Paul set up as an administrator account. Some folders like MSSQL show that account with no permissions. I grant all the permissions to Paul for that folder. I come back later and the permissions are gone.
2) I deleted 20 files in Explorer, but 7 of them did not go away. I deleted those 7 again and they instatnly reappeared. I deleted those 7 again and then they finally went away.
3) I get a slow reaction time for things like Windows Explorer and opening and closing programs. This is suprising since it has 2 gig of RAM and 2.3 Gig processor. Could it be a memory handling problem that's causing OS problems. Probably, the memory didn't handle the OS installation well and the whole system is compromised now.
We're doing upgrades from SQL 2008 R2 to SQL 2014. This is blocked due to RS is installed but not configured. Our desired action is to uninstall RS and proceed with the upgrade. But when setuparp.exe is raised, it does not list all the features on the 'Select Features' page. In fact, it only lists the last 2 shared features (SQ Client Connectivity SDK and Microsoft Sync Framework). However, all items appear to be listed on the 'Select Instance' page including RS. I've seen this issue on 2 of our SQL 2008 R2 Servers already.
I'm trying to install SQL Server Management studio 2012 on my Windows 7 (x64) standalone laptop. When I click "New SQL stand-alone installation..." it runs a Setup Support Rules check and always fails "Setup Account Privileges". I've looked into the error and I keep getting that I need to change security rules but I don't have that option in window 7. How do I get around this without having to resort to a computer running Windows Server?
I have Visual Studio 2013 premium installed along with Localdb v11. I just want to connect and manage my database engine through SSMS when developing any application.
This forum is intended for users who are new to SQL Server, and have basic usage questions. If you have setup or installation issues or questions, you should check out the Setup forum.
I am running a number of SQL instances on my PC. Within the network, I have think server with various System Center components. For compatibility reasons, some features of System Center 2012 R2 had to be delegated to different SQL databases. My question is, because there is now more than one IP address on my system, and each instance of SQL is assigned to its own IP, is there a way to setup DNS and SQL so the namespace points to the desired IP address? For Instance:
MSSQL2008 instance is set to run on = 11.12.13.1 MSSQL2012 is set to run on = 11.12.13.2 IN DNS: A Record: Mike-PC = 11.12.13.1 A Record: Mike-PC = 11.12.13.2
If I want to use MSSQL2008 by specifying Mike-PC as the DNS name, how would I do that with 100% accuracy? If there is another way to get the job done, I am more than willing to approach this differently.
Hi I'm pretty new to all of this. I downloded a starter kit and am a bit confised as to SQLExpress. I have SQL Server already installed and just wondering what the option are. I am currently using Visual Web Developer Express Edition and in the config file data source is SQLExpress and can't go any further. I don't want to mess with my current setup so just want to get some sugestions first. Anyway hope this makes sense. Thanks GP
I have just created a website with membership just using the standard SqlExpress auto generated file Everything works fine until I upload it to webspace :( I get the following Error An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) I don't have SQL Server 2005 :(
if my SQl server/COnnection is "SQL EXPRESS"..Im using an Import name "Import System.SqlClient" on every web form that i have... as well as other SQl command name like "SQLConnection,SQLCommand etc..."is this the correct that im using all sqlcommand in my webform??? well sorry for this im just new..and one more thing..can i include Ado.net on it if my connection is "SQLEXPRESS" just i said? Thanks for the answer....
