I have follow situation. I connect on a jumpbox server with my account domain\username and password from my computer. On jumpbox server I connect from SQL Server Management Studio on others servers, where I have databases, using Windows Authentication.
I want to write a Windows application on my computer that connect to databases but I receive this error: "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
I put my domain on Window Credential and on application I use this string to
connect: connetionString="Server=myServerDatabase ;
Database= myDatabase; Integrated Security=SSPI; User
ID=myDomain/username;Password=MyPass"
If you have others idea how to connect or if it's possible to pass from jumpbox server and then connect to database server and then to database.
Related
I have a Windows service running in the server. When the clients in the domain connect to the service, it is able to connect to SQL Server 2008 R2 / SQL Server 2012 / SQL Server 2016. However, when the Windows service is accessed over the internet, it fails to connect to the SQL Server.
Service runs as Network Service and SQL Server has login rights Network Service. Otherwise even domain client accessing windows services will not be able to access.
It was working properly i.e connecting SQL Server when I used in the Windows service OLEDbConnection to access SQL Server. I changed to DBConnection as we want to support MySQL as well in addition to SQL Server, DB2 and Oracle. After changing to DBconnection, I have encountered this issue.
The error message is:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
I'm new in azure cloud, so I have asp.net application. I want add ado.NET item. I try with connection string. Add connection there not run I add new connection there not run.
I don't understand. How add my entity framework classes to azure?
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: SQL
Network Interfaces, error: 40 - Error Could not open a connection a SQL Server ).
I new in asp.net too, so How I work with azure and asp.net?
You need to configure a firewall rule to enable you to connect to the database. You can do this from the portal.
How to configure firewall for database
i am developing a web application in visual studio 2012. and i have added a database file named as Database1.mdf into App_Data folder and i have given following connection string
Data Source=(LocalDB)\v11.0;AttachDbFilename="E:\asp.net mvc\storage\storage\App_Data\Database1.mdf";Integrated Security=True
after that i have written the code for inserting the data but at that i am getting the error like
A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: Named
Pipes Provider, error: 40 - Could not open a connection to SQL Server)
is there any mistake in the connection string?
Please help me in htis
Usually, for me, this indicates that SQL Server hasn't been configured correctly to receive remote calls. There are three things to check.
Your server instance is named correctly and you have permissions to it
That you are configured to receive remote connections
That SQL server is open on the the protocols you want to use
To check the second one, open up SQL Management Studio and select Properties on the server. Then check under "Connections" that "Remote Server Connections" is enabled.
To check the third, open up SQL Server Configuration Manager and make sure that "Client Protocols" TCP/IP is enabled as well as Named Pipes (depending on your network setup).
Your connection string should be written like this:
connectionString="DataSource=.\SQLEXPRESS; InitialCatalog=Database; AttachDBFilename=|DataDirectory|\Database.mdf; Integrated Security=SSPI;"
i have a snippet that it work properly when i use windowsmode with follow connection string
data source=.;database=xDB;integrated security=true;
but i have to change it for sql and windows mode i changeit to
Data Source=.;Initial Catalog=xDB;User Id=krs;Password=12345;
but follow error occur
Login failed for user 'krs'. The user is not associated with a trusted SQL Server connection.
and when change dot(.) to(local) another error occur
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
plz help me im beginer n confused.thank
You have to enable the Named Pipe & TCP/IP in SQL Server configuration. Go through following link to enable that
http://www.triostechs.com/Microsoft-SQL-Server-2008/Microsoft-SQL-Server-2008-Enable-TCP/IP-or-Named-Pipes.html
Also Make sure, only one instance of the SQL Server running. If it is more than one, just verify which one you are connecting to.
I created an MVC application that accesses my SQL Server database using LinqToSql. But I get an exception on dbGuestbookContext.SubmitChanges();
A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: Named
Pipes Provider, error: 40 - Could not open a connection to SQL Server)
I can access other databases on that server from other applications.
Could you please tell what I can do about this?
Thaks.