The program is working fine when executed locally. But when I try to host it on a Virtual Machine and then execute it, the following error is coming.
permission denied in database 'master' error
This is my connection string in appsettings.json :
{
"ConnectionStrings": {
"DefaultConnection": "Data Source=Server_Name\\SQLEXPRESS;Initial Catalog=DB_Name;Integrated Security=True"
}
Please help me in resolving this.
You don't have enough rights to create a database using integrated security. You can try to use an account to resolve this. In your connection string, instead of Integrated Security = True, use
{
"ConnectionStrings": {
"DefaultConnection": "Data Source=Server_Name\\SQLEXPRESS;Initial
Catalog=DB_Name;User Id=sa;Password=yourpassword"
}
take a look at :
https://learn.microsoft.com/en-us/dotnet/framework/data/adonet/sql/authentication-in-sql-server
The error can be solved by using the below connection strings:
CONNECTION strings:(will be present in appsettings.json)
for windows authentication
Data Source=Machine_Name\\SQLEXPRESS;Initial Catalog=DataBase_Name;Integrated Security=True
for SQL authentication
Data Source=Machine_Name\\SQLEXPRESS;Initial Catalog=Db_Name;User ID=saAccount;Password=MYPassword;Asynchronous Processing=True
Related
I have the problem with connection into database with asp.net core 2.0.
There is my connection string :
"ApplicationConfiguration": {
"DefaultConnection": "Server=***; Database=***; User Id=***; Password=***; Trusted_Connection=True; Integrated Security=True;"
}
I'm getting connection string properly so it's not an issue. :(
In the database I have mixed authentication. So whenever I'm connect to database it's using props from connection string and using Windows Authentication as well. Why I know that ? Because on my pc It's work fine because I'm 'registered' to database. But whenever my friend trying to connect into database he gets "Login failed" error but his domain Login is displayed not from connection string.
SOLUTION :
Just remove from your connection string:
Trusted_Connection=True; Integrated Security=True;
Thanks to : Schadensbegrenzer
Explanation : When using Trusted_Connection=true and SQL Server authentication, will this effect performance?
I have a development environment in which I need to use IIS and SQL Server Express. My connection string looks like this:
<add name="DefaultConnection"
connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\MyProject.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
This works great when I run the app and browse to the site. Data is returned from the database and I can log into Management Studio and view that data. The problem is when I try to push a new data migration using Update-Database.
I then get this error message:
Login failed for user 'AzureAD\MyAccount'
If I remove User Instance=True from my connection string, the Update-Database command suddenly works! Then I refresh my page and see the following error from all endpoints that require the database:
CREATE DATABASE permission denied in database 'master'.
I have already tried the trick of deleting this folder. It did not solve it.
C:\Users\MyAccount\AppData\Local\Microsoft\Microsoft SQL Server Data
What gives?
Figured this out so Ill leave the answer here for the next dev:
As I mentioned, my dev setup is running IIS and SQL Express.
Update the connection string to point to an Initial Catalog=MyDatabase instead of the AttachDbFilename=|DataDirectory|\MyProject.mdf
Remove User Instance=True. Your connection string now looks like:
Data Source=.\SQLEXPRESS;Initial Catalog=FullStackFitness;Integrated Security=True
Create the database by running Update-Database.
Create a SQL login for the app pool account (IIS APPPOOL\ACCOUNT) dbcreator and sysadmin on the database.
I did not test it but I believe you can keep using an mdf file and still get this to work by running only steps 2 - 4.
Troubleshooting Tips
Help troubleshooting the access denied issue came from a tip on Scott Allens blog:
The first step I would recommend is trying to determine what connection string the framework is using, because the exception doesn’t tell you the connection string, and the connection string can be controlled by a variety of conventions, configurations, and code.
To find out the connection string, I’d add some logging to a default constructor in my DbContext derived class.
public class DepartmentDb : DbContext
{
public DepartmentDb()
{
Debug.Write(Database.Connection.ConnectionString);
}
public DbSet<Person> People { get; set; }
}
Run the application with the debugger and watch the Visual Studio Output window. Or, set a breakpoint and observe the ConnectionString property as you go somewhere in the application that tries to make a database connection.
My webpages are on secured server (https), and I am trying to connect the SQL Server 2008 Database, which is normal server.
I am writing connectionstring on page itself, not in web.config file. And I am getting following error:-
System.Data.SqlClient.SqlException: Login failed.
The login is from an untrusted domain and cannot be used with Windows authentication.
Please help, how can I connect it, does I have to make some webservices for it.
my code is as below:
public void FillCity()
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "integrated security=SSPI;data source=dev-fcb; user id=sa;password=password;"
+"persist security info=False;database=mediapro";
con.Open();
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = new SqlCommand("select * from StateCityMaster where IsActive='1' order by CityName", con);
DataSet ds = new DataSet();
da.Fill(ds);
string CityName = string.Empty;
if (ds.Tables[0].Rows.Count > 0)
{
CityName = ds.Tables[0].Rows[0]["CityName"].ToString();
}
DataSet dset = new DataSet();
da.Fill(dset);
if (dset.Tables[0].Rows.Count > 0)
{
drpCity.DataSource = dset;
drpCity.DataTextField = "CityName";
drpCity.DataValueField = "CityName";
drpCity.DataBind();
}
drpCity.Items.Insert(0, new ListItem("--Select--", "0"));
con.Close();
}
Your connection string is telling it to use integrated security SSPI, which will use the Windows credentials.
Set Integrated Security to false if you are going to be providing the username and password.
Also, consider putting your connection string inside of the web.config file - it is more secure and reusable.
From http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.connectionstring(v=VS.100).aspx:
When false, User ID and Password are specified in the connection. When true, the current Windows account credentials are used for authentication.
Recognized values are true, false, yes, no, and sspi (strongly recommended), which is equivalent to true.
If User ID and Password are specified and Integrated Security is set to true, the User ID and Password will be ignored and Integrated Security will be used.
I created a new Asp.Net Core MVC site and I had this same error. I was attempting to connect to my company's database while connected to the network via VPN. Here's what worked for me:
Instead of
"DevConnection": "Server=DevDBServer;Database=MyDatabase;User ID=some_userid;Password=some_password;Integrated Security=SSPI;Trusted_Connection=True;"
I used
"DevConnection": "Server=DevDBServer;Database=MyDatabase;User ID=some_userid;Password=some_password;Integrated Security=False;Trusted_Connection=False;"
The key change was to make sure that Trusted_Connection=False, which is consistent with the error message. Generally I would not use an untrusted connection. In this case I was connecting to a dev/test database so it's fine.
For future googlers:
If you do need Integrated Security and are getting this error it might be you're using a local account instead of a domain account.
I came across this running Visual Studio locally and trying to connect to a database on another machine. A workaround was to run Visual Studio as a different user, the prompt didn't work but running the command below did (make sure to replace DOMAIN\USER and you will be asked to provide credentials):
runas /netonly /user:DOMAIN\USER "C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\Common7\IDE\devenv.exe"
(This is for VS2019, your path may vary).
Old question, and my symptoms are slightly different, but same error. My connection string was correct (Integrated security, and I don't provide user and pwd) with data source set to 127.0.0.1. It worked fine for years.
But recently I added a line in the static host file for testing purposes (C:\Windows\System32\drivers\etc\hosts)
127.0.0.1 www.blablatestsite.com
Removing this line and the error is gone.
I got a clue from this article (https://support.microsoft.com/en-gb/kb/896861) which talks about hostnames and loopback.
Other possible fix (if you need to keep that line in the hosts file) is to use the hostname (like MYSERVER01) instead of 127.0.0.1 in the data source of the connection string.
I had this same issue while accessing this through work where we use Azure authentication - I'd changed my password through the Azure password reset service but this only pushed through after I manually updated the password on the schema settings in my RDBMS (in my case, DataGrip).
My webpages are on secured server (https), and I am trying to connect the SQL Server 2008 Database, which is normal server.
I am writing connectionstring on page itself, not in web.config file. And I am getting following error:-
System.Data.SqlClient.SqlException: Login failed.
The login is from an untrusted domain and cannot be used with Windows authentication.
Please help, how can I connect it, does I have to make some webservices for it.
my code is as below:
public void FillCity()
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "integrated security=SSPI;data source=dev-fcb; user id=sa;password=password;"
+"persist security info=False;database=mediapro";
con.Open();
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = new SqlCommand("select * from StateCityMaster where IsActive='1' order by CityName", con);
DataSet ds = new DataSet();
da.Fill(ds);
string CityName = string.Empty;
if (ds.Tables[0].Rows.Count > 0)
{
CityName = ds.Tables[0].Rows[0]["CityName"].ToString();
}
DataSet dset = new DataSet();
da.Fill(dset);
if (dset.Tables[0].Rows.Count > 0)
{
drpCity.DataSource = dset;
drpCity.DataTextField = "CityName";
drpCity.DataValueField = "CityName";
drpCity.DataBind();
}
drpCity.Items.Insert(0, new ListItem("--Select--", "0"));
con.Close();
}
Your connection string is telling it to use integrated security SSPI, which will use the Windows credentials.
Set Integrated Security to false if you are going to be providing the username and password.
Also, consider putting your connection string inside of the web.config file - it is more secure and reusable.
From http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.connectionstring(v=VS.100).aspx:
When false, User ID and Password are specified in the connection. When true, the current Windows account credentials are used for authentication.
Recognized values are true, false, yes, no, and sspi (strongly recommended), which is equivalent to true.
If User ID and Password are specified and Integrated Security is set to true, the User ID and Password will be ignored and Integrated Security will be used.
I created a new Asp.Net Core MVC site and I had this same error. I was attempting to connect to my company's database while connected to the network via VPN. Here's what worked for me:
Instead of
"DevConnection": "Server=DevDBServer;Database=MyDatabase;User ID=some_userid;Password=some_password;Integrated Security=SSPI;Trusted_Connection=True;"
I used
"DevConnection": "Server=DevDBServer;Database=MyDatabase;User ID=some_userid;Password=some_password;Integrated Security=False;Trusted_Connection=False;"
The key change was to make sure that Trusted_Connection=False, which is consistent with the error message. Generally I would not use an untrusted connection. In this case I was connecting to a dev/test database so it's fine.
For future googlers:
If you do need Integrated Security and are getting this error it might be you're using a local account instead of a domain account.
I came across this running Visual Studio locally and trying to connect to a database on another machine. A workaround was to run Visual Studio as a different user, the prompt didn't work but running the command below did (make sure to replace DOMAIN\USER and you will be asked to provide credentials):
runas /netonly /user:DOMAIN\USER "C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\Common7\IDE\devenv.exe"
(This is for VS2019, your path may vary).
Old question, and my symptoms are slightly different, but same error. My connection string was correct (Integrated security, and I don't provide user and pwd) with data source set to 127.0.0.1. It worked fine for years.
But recently I added a line in the static host file for testing purposes (C:\Windows\System32\drivers\etc\hosts)
127.0.0.1 www.blablatestsite.com
Removing this line and the error is gone.
I got a clue from this article (https://support.microsoft.com/en-gb/kb/896861) which talks about hostnames and loopback.
Other possible fix (if you need to keep that line in the hosts file) is to use the hostname (like MYSERVER01) instead of 127.0.0.1 in the data source of the connection string.
I had this same issue while accessing this through work where we use Azure authentication - I'd changed my password through the Azure password reset service but this only pushed through after I manually updated the password on the schema settings in my RDBMS (in my case, DataGrip).
I am developing ASP.NET 2.0 application using SQL Express 2005. I have attached my database with the application.
The Connection string:
<add name="WCMIRConnectionString" providerName="System.Data.SqlClient"
connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename="\App_Data\WCMIR.mdf";Integrated Security=True;Trusted_Connection=no;User Instance=True" />
When trying to connect the following error appears :
Cannot open database "dp-name" requested by the login. The login failed.
Login failed for user 'Machine\useID'.
How can this error be resolved?
First I think the connection string should be with |App_Data| not \App_Data\
Second Make sure that this user has permission on this folder and on this DB
You shouldn't need the AttachDbFileName if your database is already attached, but you should include InitialCatalog to indicate which database you would like to connect to.
Problem Solved
Connection string must be like :
Data Source=.\SQLEXPRESS;AttachDbFileName=|DataDirectory|DB.MDF;" +
"Integrated Security=True;User Instance=True";
Just try to use "|" instead of backslash in your code.