My database is hosted on a remote server. I need to write the connection string which I have to include in the web.config file.
server name -- abcs.efgh.ed-1.eee.sss.com,1433 (it also contains a port as well)
username -- a
password -- a
db name -- mydb
I know how to connect to a local database and I use to refer to connectionstring.com for reference but, connecting to a remote database is a problem to me. Help please
UPDATE:
<connectionStrings>
<add name="DefaultConnection" providerName="System.Data.SqlClient"
connectionString="abcs.efgh.ed-1.eee.sss.com,1433;Integrated Security=True;User ID=a;Password=a" />
</connectionStrings>
Exception I get is :
Login failed. The login is from an untrusted domain and cannot be used with Windows authentication.
Actually, it's not Windows authentication that I want to use. It's SQL Server authentication which I want.
You are encountering the error because you are using "integrated security=true" to connect. Use this website to construct your connection string. http://www.developerfusion.com/tools/sql-connection-string/
I used the website to generate this connection string using your inputs:
Data Source=abcs.efgh.ed-1.eee.sss.com,1433;Initial Catalog=mydb;Integrated Security=False;User ID=a;Password=a
Put Integrated security =false. in connection string
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. SqlCredential is a more secure way to specify credentials for a
connection that uses SQL Server Authentication (Integrated
Security=false).
More at Here
Related
When trying to connect to remote DB, I get this error in my code.
underlying provider failed to open. Cannot open database 'x' requested
by login. LOGIN FAILED FOR USER "<My local user(DESKTOP-E5KPAPG\localUser). NOT the user I have on sql server>"
I can log in using SSMS by providing credentials : Server Name : 111.11.111.111 and SQL Server Authentication - username and password : "userX", "p#ss";
In my code, connection string looks like this
<add name="ApplicationServices" connectionString="Connection Timeout=60; Data Source=111.11.111.111; Initial Catalog=x; User Id=userX; pwd=p#ss; Persist Security Info=True; " providerName="System.Data.SqlClient" />
<add name="XEntities" connectionString="metadata=res://*/Model.XModel.csdl|res://*/Model.XModel.ssdl|res://*/Model.XModel.msl;provider=System.Data.SqlClient;provider connection string="data source=111.11.111.111;initial catalog=x;persist security info=True;user id=userX;password=p#ss;connect timeout=60;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" /></connectionStrings>
'p#ss' is my SQL Login password.
Also, providing sensitive details in connection string doesn't seem secure and is there a better alternative?
I can log into the server explorer to work on my database.
Yet I fail to access it with a Connection String.
is your connection string in the format of Server=tcp:{server}.database.windows.net,1433;Initial Catalog={databaseName};Persist Security Info=False;User ID={your_username};Password={your_password};MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;
double check the password and firewall for your IP
This is ADO.NET Connection String that I use for my Azure SQL C# project:
Server=tcp:YOUR_SERVER,1433;
Initial Catalog=YOUR_DB_NAMR;
Persist Security Info=False;
User ID=YOUR_LOGIN;Password=YOUR_PASSWORD};
MultipleActiveResultSets=False;
Encrypt=True;
TrustServerCertificate=False;
Connection Timeout=30;
And as #Krunal mentioned, double check your login credentials
and make sure your IP is whitelisted on the server side.
You can set a 0.0.0.0 to 250.250.250.250 range as a whitelisted range, for testing purposes.
I am using SQL Server r2 database as a remote server having mixed mode sql authentication.
When run my c# program from client computer to access database with following connection string:
"Data Source=192.168.1.101\SQLEXPRESS,1433;Initial Catalog=Login; Integrated Security=true;Connection timeout=30; User ID=sa;Password=23456"
and facing an error:
Login failed for user 'VAIO\Guest'.
VAIO is remote PC.
you are using Integrated Security=true which denotes that sql will try to login using Windows authentication. It seems that this windows user is not a valid login for sql server. If you want to use user and password set:
Integrated Security=false
it worked for me. use Sa user id and password...
"Data Source=192.168.8.106\PEBB, 1433;Initial Catalog=d2;Integrated Security=False;user id=sa;password=123;Connect Timeout=30"```
Add one space before port no.
Data Source=192.168.1.101\SQLEXPRESS, 1433
I am making a simple application which is to connect remote SQL Server.
This is the connection string.
string connectionString = "Data Source=ip address;Initial Catalog=TELMAR;User ID=sa;Password=password;Trusted_Connection=false;encrypt=false";
If I set encrypt to true. I got this error:
A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)
If I set encrypt to false. I got this error:
Cannot open database "TELMAR" requested by the login. The login failed.
Login failed for user 'sa'.
When I tried to connect to the server using SQL Server Management Studio, I could connect without any problem.
I do not know why I cannot connect to SQL Server using Visual C#.
I also enabled TCP\IP and named pipe on both my computer and server.
Can anyone help me?
Try changing the connection string to this format
<add name="TELMAR" connectionString="Data Source = ip adress;Initial Catalog=TELMAR;MultipleActiveResultSets=true; User Id = sa; Password = password providerName="System.Data.SqlClient"/>
And in the program.cs you can initiate the connection string by this way
string conStr = ConfigurationManager.ConnectionStrings["TELMAR"].ConnectionString;
I am trying to create a simple login page in ASP.NET C# but am getting some error.
I googled about the error, and tried all the solutions but to no avail.
What am I doing wrong? The error 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"
I think it's something to do with my connection string which is as follows:
<add name="cn"
connectionString="server=HCL;DataBase=GS;Integrated Security=True" />
"HCL" is another machine connected to my PC through the LAN and this database, "GS", resides on it. Is the problem with the value I am giving in "Server" attribute of the above code? If not what else may I be doing wrong?
I can tell all solutions I tried. Let me know if that's required.
I don't think "Server" is a valid property for a connection string. Try "Data Source" instead. "Integrated Security" should also be set to SSPI:
<add name="cn" connectionString="Data Source=HCL;Initial Catalog=GS;Integrated Security=SSPI"/>
UPDATE:
I just noticed that you have also used "Database". This should be "Initial Catalog".
UPDATE2:
There is a neat trick for creating connection strings by using .udl files. If you create an empty file called "something.udl" and double click it, Windows will open a nice dialog for defining connections. To create a connection string for a SQL Server, choose "Microsoft OLEDB Provider for SQL Server" on the "Provider" tab and then fill in your server name, login credentials, and database name on the "Connection" tab. Finish by testing the connection and click "OK".
After the dialog is closed, you can drag the .udl file into Notepad or Visual Studio and you will see that the .udl file actually contains a connection string ready for you to use (note that if you wish to use the connection string with SqlConnection in .NET you must remove the "Provider=SQLOLEDB.1" part of the string).
The error is definitely connectivity. Usually in firewall rules, remote connections disabled or just general connectivity issues.
However using integrated security is probably your issue. If you are in a domain/workgroup this could work,w ith properly set permissions, but if not then you probably need to pass your credentials. Integrated security will pass the credentials of your logged in account and is the normal method if the database in on the same PC as the application.
<add name="cn" connectionString="Data Source=HCL;Initial Catalog=GS;User Id=YOURSQLUSERNAME;Password=YOURSQLPASSWORD;"/>
See http://www.connectionstrings.com/ for more connection string examples.
Try adding "Integrated Security=SSPI;" or specify your UID, Pwd for connecting to the server. You might be getting struck at the authentication.
Open management studio and connect with SQL Server using SQL Server Authentication. Enter userId and password to connect. Use that userid and password in your connection string.
connectionString="Data Source=HCL;Initial Catalog=GS;User Id=UserId;Password=password;
User Id -> UserId you want to login
using. like 'sa'
Password -> password of you user.
If you get error Login failed for user" 'yourusername' then this link will help. This is to enable user sa.
SQL Server 2005 "Login failed for user" sa
EDIT:
connectionString="Data Source=HCL;Initial Catalog=GS;Persist Security Info=True;User ID=sa;Password=pass"
This link might help
sql-network-interfaces-error-26-error-locating-server-instance-specified
I think you should try trusted_connection = true instead of integrated security in your connectionstring.
See here: http://connectionstrings.com/sql-server-2005
Second reason could be that you have several instances of your database which you have to write into the connectionstring.