I've been given a backup of a production SQL database to begin writing an application against.
I've got it running as a local instance and using Windows Authentication and I can READ the information, however I cannot figure out how to get IIS to use my Windows Authentication to log into the SQL server when running a local ASP.Net website.
I don't have the authority on the DB to add users, and I'm getting an error of System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\NETWORK SERVICE'. when I try to access a page that reads the database.
I don't think I will be able to communicate with the DB admin for a while to get him to fix this up for me. Is there anything I can do here?
Your asp code is using the same identity that IIS runs under - the Network Service account. To get it to use your credentials, you can either hard-code them into a connection string or you can use impersonation (see this link: http://msdn.microsoft.com/en-us/library/aa292118%28VS.71%29.aspx)
The gist of the link:
Put this in your web.config file: <identity impersonate="true" />
-t.
You need to create an account in SQL Server for the Network Service account,ex via SSMS via the "Security" section, right click on "Logins" and select add. You will be adding a Windows Account, you can then lookup and validate the name "NETWORK SERVICE". Then switch to the "User Mapping" section and grant permission to view your database.
reference : http://msdn.microsoft.com/en-us/library/ms998320.aspx#paght000015%5Fsqlserver
2nd Alternative
If "integrated security=sspi" is there in your connection string than you should:
Turn on integrated auth in IIS
Turn on windows auth in asp.net
Turn on imerposation in asp.net
Hopefully it will help.
Related
I'm trying to deploy my first ASP.NET app on IIS, but I'm facing an issue whenever I connect to database. Connecting to database works just fine running the app on visual studio.
I keep getting the following:
SqlException: Cannot open database "RazorPagesMovieContext-ae4522b8-14f6-4dd9-9e71-fb8009d965ad" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.
My connection string looks like this:
<add name="LocalSqlServer"
connectionString="Server=(localdb)\MSSQLLocalDB;Database=RazorPagesMovieContext-ae4522b8-14f6-4dd9-9e71-fb8009d965ad;Integrated Security=true"
providerName="System.Data.SqlClient" />
Like stated in the article here: https://learn.microsoft.com/en-us/archive/blogs/sqlexpress/using-localdb-with-full-iis-part-2-instance-ownership I have tried #1 "Run IIS as our Windows user" and #2 "Use LocalDB Shared Instance" of the approaches without any luck so I've moved to trying NetworkService instead of ApplicationPoolIdentity which is where I'm facing the same error (using ApplicationPoolIdentity it fails with
Login failed for user 'IIS APPPOOL.NET v4.5'") just under different user.
In my SQL Server Management Studio I've created a new user with "NT AUTHORITY\NETWORK SERVICE" name and made sure I gave "db owner" permission for the database and ticked all Server Roles. Most of the answers point out to giving permissions, but that still does not address this for me.
Any insights would be appreciated
Problem in your ConnectionString, you haven't any user content CS for Login Database.
First you must add user for database your then set your connectionString
Two Options
Create new user on your database then this user set access for RazorPagesMovieContext-ae4522b8-14f6-4dd9-9e71-fb8009d965ad Create User
Enable sa user, by default disabled sa user, Enable Sa user
Finally Change connection string
if you use option 2
Server=(localdb)\MSSQLLocalDB;Database=RazorPagesMovieContext-ae4522b8-14f6-4dd9-9e71-fb8009d965ad; user=sa; password=yourPassword
**For enable **
The solution in the above link is useful, Run IIS as our Windows user or Use LocalDB shared instance is an approach to the issue.
I am here just to discuss the approach provided in the documentation. In solution1, firstly we should ensure that the VS is running properly because we should ensure the Database instance also is running properly. Then change the application pool identity to the Windows account running the Visual Studio.
In solution2, since Visual Studio2017 has updated the name of the local database instance, we should change the command accordingly.
sqllocaldb share instance mssqllocaldb IIS_DB
Subsequently, apply it to the connection string.
Data Source=(localdb)\.\IIS_DB;Initial Catalog=mydatabase;Integrated Security=True
Here is a detailed description of this issue.
https://codemegeek.com/2018/05/13/configure-iis-to-us-localdb/
Feel free to let me know if there is anything I can help with.
I am new to IIS and MS SQL Server (coming from a Apache MySQL Environment) so hopefully I will include enough details for you guys to help me!
I am converting my web app from using hard coded database credentials (currently SA :/ ) in the Connection String in web.config.
I removed the username and password and put in "Integrated Security=SSPI". The website is configured with a dedicated app pool and that app pool Identity is set to the domain account I want it to use. When I attempt to use the web app I get an error. When I look into the SQL Server logs I see "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'. Reason: Could not find a login matching the name provided.
Any ideas on what I am doing wrong?
Add (or modify) the element below to the system.web section of your web.config.
<identity impersonate="true" />
See http://msdn.microsoft.com/en-us/library/vstudio/134ec8tc(v=vs.100).aspx
I have created a website using ASP.net with simple data connection which is working fine in localhost. when I want to publish the same, I am getting this error. "Cannot open database "Abcdb" requested by the login. The login failed. Login failed for user 'XYZ-Domain\XYZ-SVR-01$'.
I don't have the user 'XYZ-Domain\XYZ-SVR-01$' in my SQL Server (SQL Express 2012).
I have my server in a virtual machine .
my connection string is "Data Source=XYZ-05-VM1\SQLEXPRESS;Integrated Security=True;Initial Catalog=Abcdb".
do I have to create a user in my database as shown above or else can I use existing database user. I am very new to this technology. Kindly help me.
Try it
<connectionStrings>
<add connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=Abcdb;Integrated Security = SSPI" providerName="System.Data.SqlClient" />
</connectionStrings>
The error means that the server could be reached and the database name is correct. The problem is that the login is invalid.
From the login name I suppose that you have set Integrated Security=SSPI in your connection string and therefore try to authenticate with the account that your application is running under at the SQL Server. On your development machine, this is your user account that on a typical developer machine will be granted high access rights to the local SQL Server.
After you have deployed your application to IIS, it will run in an AppPool that is basically a process under a specific user account (the AppPool account). You need to grant this user account access to the database. In your case, this account is the Network Service account of the server you have your application deployed to. So you need to either grant the Network Service account access to the database or follow this - cleaner - approach:
Create a new Service account in your domain that is dedicated to your application.
Configure your AppPool to run under this account. Assert that the account has the minimum amount of access rights on the server that is possible.
Grant this account access to your database.
If you want to check the database connection settings, have a look at the connectionStrings section in your web.config. This link shows the available settings for SQL Server.
My ASP.NET v3.5 web application is throwing the following exception when it attempts to open a connection to a SQL Server 2008 database:
System.Data.SqlClient.SqlException:
Cannot open database "MyDbName"
requested by the login. The login
failed. Login failed for user 'NT
AUTHORITY\IUSR'.
The thing is, I've added NT AUTHORITY\IUSR to the server's list of logins, and to the database's list of users. For the server, I've granted the user the Public role, and for the database I've granted db_datareader permissions.
I've also granted the same for NT AUTHORITY\NETWORK SERVICE, which is the identity that the application pool is running under.
The web application is hosted by IIS7, if that makes a difference. The problem repros when the DB and IIS are on the same physical machine as well.
The trick here is that NT AUTHORITY\NETWORK SERVICE actually appears to the database as DOMAINNAME\MACHINENAME$ (note the $ sign!). That is, when you cross the machine boundary from your web server to the SQL Server, SQL Server sees the machine account if you use the NETWORK SERVICE or LOCAL SYSTEM accounts. If you use any other non-domain account, SQL Server will not receive your credentials.
I'm a bit puzzled by your error message. Truth be told, I don't think that when the DB is on another box, you'll see anything other than Login Failed for NT AUTHORITY\ANONYMOUS LOGON.
IUSR is used for anonymous websites, and can't pass over the wire to SQL Server. You may find a way for it to work if you're doing everything on the same machine, but I'd never know because I'd never do it that way... ;-)
In case it helps someone, in web.config I added <identity impersonate="false" /> for this error to go away (under <system.web>)
It's important to note that you'll get this error, as I just did, if you don't have IIS configured to allow impersonation, but you do have your web.config attempting to do impersonation.
I just came across this exact error, and all of the following steps are required:
Ensure ASP.NET impersonation is enabled on your IIS web server:
Combine that with configuring your site to use impersonation (web.config):
<system.web>
<identity impersonate="true" userName="your_service_acct" password="***" />
</system.web>
The above steps presume that you have a SQL Login setup on your MSSQL for 'your_service_acct' with permissions
When running on localhost, against a localdb, or even a remote db that you personally have permissions on, the development IIS runs as if it were YOU - and everything just magically works. So, in debug mode, you don't need to create a special web.config..
As soon as you deploy your site onto some kind of server (in my case, our TEST environment) you'll likely need to have done the above steps I just detailed, because IIS will try to connect as the application pool user, which is not usually what you want administratively speaking. So, that's when you want to start using web.config transformations, so Visual Studio will insert the appropriate identity impersonate="true" during your 'Publish...' deployment step.
I would suggest to create a separate (preferably domain) account and specify it in the connection string (usually in web.config)
Then you can limit permissions on the web server what this account can and cannot do.
Then you can grant this account required permissions in SQL server.
I had had the same problem and solved this by changing application pool.
Instead of using Integrated Security=True; in connection string, just use username and password authentication user=sa; pwd=mypassword;
The simple solution is to check your web.config file and make sure one of these is part of the db connection string:
Trusted Connection=false
OR
Integrated Security=True
This problem is shown when you restore a new database on your last database.
To resolve this you must go to sqlserver, then security and then set your apppool again.
this worked for me:
Open the IIS Manager (inetmgr)
In the "Connections" panel, drill down to your site's node and select it
In the right-hand panel, under the "IIS" group, double click the "Authentication" icon.
Right-click on "Anonymous Authentication" and choose "Edit..." from the context menu.
In the popup dialog, select the "Application pool identity" radio button.
Click OK.
I'm trying to publish an asp.net website on a remote server. When my code tries to connect to the database, I get the error message described in the question title. Now, I've gone into the Microsoft SQL Server Management Studio for SSE 2008 and can see the list of logins. NT AUTHORITY\NETWORK SERVICE is there, but I'm not sure what settings I need to change to allow this user to access the database. I've tried using impersonation in my web.config file using the windows login credentials for the server, but that just brings up the same error message, with my windows username instead of NETWORK SERVICE.
My connection string is as follows:
connectionString="Data Source=MECHTRONICRND\SQLEXPRESS;Initial Catalog='C:\Inetpub\aspnettest\App_Data\FLEETMANAGERDB.MDF';Integrated Security=True"
Any ideas?
Thanks
--Amr
Thanks for your replies. After looking at this tutorial, I found out how to allow users access to a database. Once I had allowed NETWORK SERVICE read and write access to the database, my website worked fine with the original connection string.
--Amr
Your connection string should be:
"Data Source=MECHTRONICRND\SQLEXPRESS;Initial Catalog=FLEETMANAGERDB;Integrated Security=True"
Also, this is trying to connect to the database as the account that's used by the web server. You could run the web service (configure IIS accordingly) as a domain user, and then create a login and database user for that account. Otherwise, you will have to create a database user (in FleetManagerDB) for the Network Service account, which isn't recommended. Or yourself if you are impersonating yourself.