SYSTEM_USER And Sql Server Authentication - Not Working?
May 8, 2008
Hi,
We just restored our database from SQL Server 2000 to SQL Server 2005 for me to test things out. Right off the bat I started seeing errors where I could not select data from a table. I would get the "Invalid object" error unless I specified the schema of the object. I found this confusing because I was connected to the server using SQL Server Authentication as the schema_owner ( i.e user name and schema name were identical). I thought this was due to the fact that my DEFAULT_SCHEMA was not set but when I checked, user 'testuser' had schema 'testuser' as default_schema. I also made sure I was connected to the Database using SQL Server Authentication as user 'testuser'.
But the following would fail:
SELECT * FROM Employees
The following would however succeed.
SELECT * FROM TestUSer.Employees
I was really confused and when I read some posts and forums, I decided to check SYSTEM_USER and to my dismay, it returned my Domain login as the value as opposed to "TestUser". I re-connected using my Domain Account and SYSTEM_USER returned the Domaim Login as expected but when I switched to Sql Server Authentication and connected as user "testuser", SYSTEM_USER would still return my Domain Account. I believe this is the source of my problems. Can you tell me what's going on.?
I am a member of the sysadmins group and CURRENT_USER returns DBO. Please help as this is driving me nuts!
Thanks
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Oct 24, 2002
I have setup ODBC to connect to a SQL Server 200 database (evaluation version) so I can link tables into an Access database. In the ODBC setup, I selected SQL Server Authentication versus Windows Authentication. However, when I link a table into Access it still uses Windows Authentication first.
I found an article here that discusses the issue:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q279526
It suggested that I run an MDAC update to version 2.6. So I did that and I still have the same problem.
I tried to link a table through some code in Access by changing the connect string to "Trusted_Connection=No" but it still linked up with "Trusted_Connection=Yes".
So how do I use SQL Server Authentication only?
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Oct 15, 2007
Hi,
I need a DELETE trigger to log the user who actually deleted the item in Sql Server. Problem is that I am using connection pooling on my SqlClient side of things and so all users share the same connection string user id.
Now, I need to be able to access both the connection_user id (otherwise known as system_user) and also the user on the executing thread on the client. I do this in Oracle and DB2.
So, can you tell me how to pass this info into the connection and how to extract it within Sql Server.
ThxP
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Apr 29, 2007
Hey there,
I have a table [user] in a SQLExpress database [Database.mdf] in the App_Data folder. There are two columns. [userId] and [password]. I want to authenticate the user who wants to log in through a Login control. the user should have his userId and password in the [user] table. I digged and made my code. but it doesn't work it keeps giving me that the user is not authenticated. i guess it has no errors. please tell me if you find the error. here is the code: 1 protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
2 {
3 SqlConnection conExpress = new SqlConnection("Data Source=.\SQLEXPRESS;Initial Catalog=Database;Integrated Security=True;User Instance=False"); //Create the server connection
4
5 try
6 {
7 string id_user = Login1.UserName.Trim(); //Get the username from the control
8 string pass_user = Login1.Password; //get the Password from the control
9
10 //These are a sql and connection Examples
11 string sql = "SELECT userId, password FROM user WHERE userId = @param_Id AND password = @param_Password";
12 SqlCommand comSQL = new SqlCommand(sql, conExpress); //Create the sql command using sql string and sql connection
13
14 //Add the sql parameters
15 comSQL.Parameters.AddWithValue("@param_Id", id_user); //New on VS 2.0
16 comSQL.Parameters.AddWithValue("@param_Password", pass_user);
17
18 string cod_user = "";
19 string name_user = "";
20
21 //Open database connection
22 conExpress.Open();
23 SqlDataReader dr = comSQL.ExecuteReader();
24 while (dr.Read())
25 {
26 cod_user = dr.GetValue(0).ToString(); //The coduser is unique onto database table
27 name_user = dr.GetValue(1).ToString();
28 }
29 conExpress.Close();//Close Database Connection
30 if (cod_user != "") //The user exist onto database
31 {
32 //Create the session vars
33 Session["coduser"] = cod_user;
34 Session["nameuser"] = name_user;
35 e.Authenticated = true; //Grant the access, Goes to DestinationPageUrl
36 }
37 }
38 catch(Exception)//On Login Error
39 {
40 e.Authenticated = false;//Confirm that you are out
41 conExpress.Close();//On any error case, close the database connection
42 }
43 }
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Sep 4, 2007
My Code:
rda.InternetLogin = "domainusername"
rda.InternetPassword = "password"
rda.SubmitSql("SELECT * FROM Table", rdaOleDbConnectString)
I have a client trying to use my application through SSL.
https://DOMAINCONTROLLER/sqlmobile/sqlcesa30.dll
they do not have certificiates setup...and it isn't working at all.
Any help?
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Jan 21, 2008
Hi,
I am trying to access the SQL server using windows authentication but its not working. But others can work on their windows authentication for the same server. Anything needs to be done from my end. Please explain.
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Sep 17, 2015
This is for SQL Server 2005
When logged onto a server and connecting using windows authentication (either by server name or localhost) I am getting in fine, but when I connect using the IP I get the following error.
I can log in using SQL Server authentication with the IP.
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Apr 29, 2015
This morning I attempted to connect to my local copy of SQL Server (2012) (Win 7) using Windows Authentication. I was unable to do so and per the error log it was due to error 18456 (invalid credentials).
Yesterday I changed my windows password. Is it possible for this to be the cause?
FYI, following is from the error logs:
2015-04-27 10:10:32.98 Backup BACKUP DATABASE successfully processed 0 pages in 0.451 seconds (0.000 MB/sec).2015-04-28 00:00:41.90 spid18s This instance of SQL Server has been using a process ID of 2096 since 4/21/2015 9:08:05 AM (local) 4/21/2015 1:08:05 PM (UTC). This is an informational message only; no user action is required.2015-04-28 09:58:51.16 Logon Error: 18456, Severity: 14, State: 38.2015-04-28 09:58:51.16 Logon Login failed for user 'NT AUTHORITYSYSTEM'. Reason: Failed to open the explicitly specified database 'model'. [CLIENT: xx.xx.xxx.xxx]2015-04-28 17:09:59.87 Server SQL Server is terminating because of a system shutdown. This is an informational message only. No user action is required.
The logs showed the error occurred yesterday (4/28) which is about when I changed my password. The 17:09 log (last one) is when I shut down my computer. Note that I was logged into SQL Server when I changed my Windows password and worked with it several times through out the day.
Also, per the configuration manager SQL Server (MSSQLSERVER) (and all other services) is stopped and I was unable to start it ("The request failed or the service did not respond in a timely fashion).
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Oct 26, 2007
Trigger works great, except for one problem.
ALTER trigger [dbo].[Loans_UpdateTrigger] on [dbo].[List] for Updateas insert into Loan_Audit
select *, Getdate(), system_user, 'Update'
from Deleted
The system_user returns "DomainNameWEB$ instead of the actual users name.
Any way to get the actual users name???
thanks
Chuck Snyder
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Jul 23, 2005
Excuse me, what is the difference between user and system_user and whichfunction should be used in audit trail table ?Thanks.
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Nov 10, 2005
DECLARE @UserName nvarchar(100)SELECT @UserName = SYSTEM_USERvalue returned is "DomainNTSignonName"What I want is only "NTSignonName"Is there a function to do this or an easy parse for this in SQL2000?lq
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Dec 21, 2006
I use asp.net 2.0 to access a SQL Server Express. I want to record the user who modify the database, so I create a trigger as follows:
BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON;
-- Insert statements for trigger here UPDATE Customer SET UpdateUser = SYSTEM_USER WHERE ID = (SELECT ID FROM inserted)END
In IIS ,I configed to use Integrated Windows authentication, The problem is when I modify the database, UpdateUser always setting to NT AUTHORITYNETWORK SERVICE.
How to record the user as the format DomainUsername?
Thanks,
Alvin
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Jan 25, 2008
I know that system_user can return different types of usernames based on the authentication method used to connect to the database. I am trying to nail down a standard field width for audit columns that store the return value from system_user but I can't find definitive information about the return type of the function. Does anyone know the maximum length of the return value from the system_user function and if its an nvarchar, varchar, nchar, etc.?
Thanks.
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Oct 16, 2006
Would anyone please help me out here. which of the 2 modes of authentication is better and why??
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Mar 12, 2008
For using different services of SQL SERVER 2005 which is better...
Windows Authentication or SQL Server Authentication?
what are the advantages and disadvantages of both?
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Feb 1, 2008
Hi.
I wonder if it is possible to set forms authentication for report manager but leave report server "as it is". I need to authenticate users from external LDAP and can't use windows authentication for report manager, but I would also like to leave report server open for anonymous users. In that way authenticated administrators could create reports which anonymous users could read.
I tested the Security Extension Sample and got it working when I rewrote the authentication part with my own LDAP authentication.
If I have understood correctly, the report manager is just application inside report server so is it possible to use forms authentication with one application but still leave the report server with Windows authentication?
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Aug 14, 2001
Hi,
I need to figure out what kind of Authentication , I need to use for following applicaiton
Product : -
1 ) It resides on a its Domain and has access to Database on that Domain.
2 ) We have a application level login , n based on application login id
display specific pages.
The question that bother me is this
Q ) If i use NT authentication , then a user will be required to
a ) Login to domain (with userid and password) first and then
b ) Then i would require to again login to applicaiton with application
level login and password.(different levels of login as there)
Based on the application level login i will display only specific
asp pages. They have different access rights..and roles.
Requirment is to login only once..and it should authenticate to application display specific pages and authenticate to SQl server database also..
Is there any way thru which i can map my application level login to SQl server.. and what authentication should i use..
Thanks,
Teny
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Aug 22, 2007
I folks.I Have installed sql server 2005 express and choosed windowsauthentication on instalation, but i make a mistake and now i needmixed authentication, how can i modify this whithout uninstall andinstall again the application?thanks for the help.
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May 11, 2007
How to give authentication for Send Mail Task component?
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Apr 18, 2007
Hi there,I have installed MS SQL Server 2005 on my machine with windows authentication. But now I want to switch the authentication mode to SQL Authentication. I am unable to switch, I can’t find the proper way to do so here in 2005.Could any one help me in doing this?Thank you,-Ahsan
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Mar 25, 2004
Hello,
(Using win2k, sqlserver2k, framework 1.1)
I have an fairly data-heavy application that uses Windows authentication (Trusted connection/aspnet account) to connect to Sql Server. The site uses IIS basic authentication.
On the dev server everything works fine but when I move to the live server things get strange and it starts to crawl along. (Pages load OK but then it just crawls as it loads the datagrids etc. Sometimes it brings back incomplete/incorrect data )
BUT When I use Sql Authentication to connect to Sql Server and there is no problem at all!
Ok, there is something obviously wrong with the live server (which is identical setup to dev)but I dont know where to start.
Any ideas??
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May 15, 2006
Hi all,
I've got two applications which both have a database on my MS SQL 2000 server. The problem is, one application must use Windows Integrated Authentication (which it is currently using and cannot be changed) whilst the other application which I'm trying to configure must use a SQL password.
Since the server has already been configured to use Windows Integrated Authentication for the existing database and application, how do I configure the other database to use the SQL password?
Thanks.
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May 12, 2006
Hi all,
My work is using a shared application
which accesses a MSSQL 2000 database. To access the application, the
folder on the Windows 2003 Server is shared and users can access the
folder through a shared drive.
For the application to access the
database, it uses an ODBC connection to the MSSQL server which
originally used the SA password.
We have recently switched to using
Windows Integrated Authentication because we believe it offers a
higher level of security. However the only way in which we have been
able to enable this is to add the windows users to the SQL server.
The problem with this is that the
application sets permissions for individual users on what records
they can see within the database. We have found that by adding the
windows users to the SQL Server, they can bypass the permissions the
set by the application by simply using any application that can use
an ODBC connection, such as Enterprise Manager, and see all the
database.
One way around this would be to set up
domains of users with access privileges to the tables which reflect
the permissions set by the application, and configuring a view of the
data so they may only see the records that they have permissions to.
However to do this would require a high administrative cost to ensure
that changes made in the application are reflected in the privileges
of the SQL server.
Instead, is there a way the SQL server
can authenticate that the ODBC connection is coming from the correct
application using Windows Integrated Authentication?
This would allow the applcation to
determine security, and stop users from connecting to the SQL server
using other applications.
Alternatively, can the SQL server,
using Windows Integrated Authentication, also ask the application to
supply a username and password?
Any help with this matter would be
greatly appreciated.
Thanks!
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Aug 25, 2006
Hi,I'm using SQL Server 2005. My Connection String looks like that at the moment: <add name="LocalSqlServer" connectionString="Data Source=xx;Initial Catalog=xx;Persist Security Info=True;User ID=xx;Password=xx" providerName="System.Data.SqlClient"/> Now I'd like to change this kind of authentication to Integrated Windows AuthenticationI added the WorkerProcess IIS_WPG to the permitted Users but it didn't help.Changed the Connection String to this:connectionString="Server=xx;Database=xx;Trusted_Connection=True;"All I'm getting is that my NetworkService is not permitted to access DB when I try to connect to the DB in ASP.NET.How can I properly configure that? Thanks!
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May 8, 2003
Hello
Can anyone tell me what is the difference between sql authentication and windows authentication.
Examples of each would be very useful
Many thanks in advance
Steve
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Dec 18, 2006
Hi,
Say, I have configured my SQL to use Mixed Authentication. Now, I have a applicaiton which uses my SQL Server. The application just creates a database in SQL Server and uses the database to store its information.
This application also has a SYSTEM DSN under ODBC through which it accesses the database. For the application to access this database, should I only use SA (as my SQL instance is configured to use Mixed Authentication) or can I use Windows Authentcation too...
If I should only use SA, do we have a documentation which talks about this.
Thanks
Santhosh
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Nov 10, 2005
I was trying to transfer a SQL Server 2000 database to SQL Server 2005 using SQL Server Objects Task. However, The following error message was encountered: "[Transfer SQL Server Objects Task] Error: Execution failed with the following error: "Cannot apply value null to property Login: Value cannot be null..".€œ
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May 14, 2008
Hi folks,
I have created an EndPoint in SQL Server 2005 as per the code below.
CREATE ENDPOINT OSTC_LMS_Endpoint
AUTHORIZATION LMSEndPointUsers
STATE = STARTED
AS HTTP(
PATH = '/ostc_sql_endpoint',
AUTHENTICATION = (BASIC),
PORTS = (SSL),
SITE = 'OSTC-DEV-001'
)
FOR SOAP (
WEBMETHOD 'ostc_SQLSoapTester'
(name='OSTC_LMS_06.dbo.ostc_SQLSoapTester',
FORMAT = ROWSETS_ONLY,
SCHEMA=STANDARD),
WSDL = DEFAULT,
LOGIN_TYPE = MIXED,
SCHEMA = STANDARD,
DATABASE = 'OSTC_LMS_06',
NAMESPACE = 'http://tempUri.org/'
)
GO
USE master
GRANT CONNECT ON ENDPOINT::OSTC_LMS_Endpoint
TO [LMSEndPointUsers]
GO
USE master
GRANT CONNECT ON ENDPOINT::OSTC_LMS_Endpoint
TO [ostc-dev-001endPointUsers]
GO
-----------------------------------------------------------------------------------------------------------------
The SPROC being exposed as the webmethod: -
USE OSTC_LMS_06
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'ostc_SQLSoapTester' AND type = 'P')
DROP PROCEDURE ostc_SQLSoapTester
GO
CREATE PROCEDURE ostc_SQLSoapTester
@UsersId char(12)
AS
SET NOCOUNT ON
SELECT FIRST_NAME,FAMILY_NAME
FROM USERS
WHERE USERS_ID = @UsersId
GO
USE OSTC_LMS_06
GRANT EXECUTE ON ostc_SQLSoapTester
TO LMSEndPointUsers
GO
USE OSTC_LMS_06
GRANT EXECUTE ON ostc_SQLSoapTester
TO [ostc-dev-001endPointUsers]
GO
----------------------------------------------------------------------------------------------------------------
The computer in question is our dev server and is running as a workgroup machine with the following: -
Win Server 2003
SQL Server 2005
.net Framework 2.0
No firewalls or Proxies are in the way.
The computer has to be as a workgroup machine to reflect our live server.
The user LMSEndPointUsers is a SQL Server Login
The user ostc-dev-001endPointUsers is a machine login
We have employed the Security class as per the information given in the SQL Server documentation with the intention of using the WS-Security headers that apparently are to be used when trying to authenticate using a SQL Server login.
----------------------------------------------------------------------------------------------------------------
Code used to connect and try and reciev the dataset.
string sUserName = "userName";
string sPassword = "Password";
LMS_Endpoint.OSTC_LMS_Endpoint wsSQLTester = new LMS_Endpoint.OSTC_LMS_Endpoint();
SqlSoapHeader.Security sqlSec = new SqlSoapHeader.Security();
sqlSec.Username = sUserName;
sqlSec.Password = sPassword;
XmlWriter writer = XmlWriter.Create("Security.xml");
writer.WriteStartElement("security");
sqlSec.WriteXml(writer);
wsSQLTester.sqlSecurity = sqlSec;
DataSet dsMySet = wsSQLTester.ostc_SQLSoapTester("RH6915145507");
Basically authorization is denied 401.
Hope someone can help here as have tearing my hair out.
Thanks in advance
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Jan 15, 2002
Hi,
I have 7.0 server running with sp2 on NT box sp 5. This Sql server is configured to take both sql and NT authentication. Somehow, the bridge between NT and SQL server doesn't seem to be working as sql server does not recognize any NT authentication. Is there any way to fix it?
Because of this problem, I am unable to schedule any DTS package as sql server security doesn't recognize the sqlagent startup account and gives a login failure error.
I am about to open a ticket with Microsoft but before that if anybody can suggest me anything..
Thanks,
Shah
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Mar 30, 2004
I have an SQL Server (2000 Edition) that does not belong to a domain; Server A. (It loggs onto its own computer domain). From this server I would like to add another sql server registration through Enterprise Manager that does belong to a domain; Server B (also 2000 Edition).
The only way I can register Server B on the Server A computer is by logging onto the domain that Server B belongs to.
Is it possible to just use SQL Server authentication and not have Server A logon to the Server B domain? If so what could I be doing wrong?
When Server A is logged onto its own local computer domain I can ping Server B and also resolve the server by name.
Any suggestions?
Many Thanks,
Timbo.
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Dec 21, 2007
Hello,
I am running SQL Server Express 2005 on Vista.
I can currently log in through Management Studio using Windows Authentication. I want to login using my sa account (which exists) and a password, and eventually be able to do role based security for additional users.
How can I set this up?
Thanks,
Bob
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Jul 23, 2005
Hi ,am new to sqlserver 2000.I want to connect to my sqlserver which is aremote machine.I want to connect to sqlserver by sqlserverauthentication.Even though i added the available sqlserver in myclient as it shows, it is connected only by windows[nt)authentication.Why it is showing so ?.* But it is connected via Query analyzer in sqlauthentication.I want to connect this sqlserver to my asp.net .Is the connection string as follows is right ,if no pls correct me,---------Persist Security Info=False;IntegratedSecurity=SSPI;database=NORTHWIND;server=IISSERVER; User id=sa"---------It shows the error .Login failed for user 'NT AUTHORITYANONYMOUS LOGON'.I ve'nt mentioned any authentication mechanisym in my query string..From the error it defaultly accepts the NT authentication.How can iover ride this to sql authentication.Pls tell me the procedures should be made to connect to sqlserver insql authentication.Thx & RegardsRaghu
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Jul 18, 2007
I would like to add a new data source to my windows application using SQL server authentication. When I made the connection it did not have any problem. When I add the tableAdapter control it give me the message:
"login fail for user id(user name).
Please help me.
Nhung
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