I have two computers that share the same Internet IP address. Using one of the computers, I can remotely connect to a SQL Server database on the other. Here is my connection string:
SqlConnection connection = new SqlConnection(#"Data Source=192.168.1.101\SQLEXPRESSNI,1433;Network Library=DBMSSOCN;Initial Catalog=FirstDB;Persist Security Info=True;User ID=username;Password=password;");
192.168.1.101 is the server, SQLEXPRESSNI is the SQL Server instance name, and FirstDB is the name of the database.
Now, I have another computer with a different Internet IP address. I want to connect to the server above using the third computer that does not belong to my local area network. I dont have access to that third computer at the moment, so I want to use (if possible) the client computer in LAN again.
SqlConnection connection = new SqlConnection(#"Data Source=SharedInternetIP\SQLEXPRESSNI,1433;Network Library=DBMSSOCN;Initial Catalog=FirstDB;Persist Security Info=True;User ID=username;Password=password;");
Does not work
Note that I am a beginner, so I am not quite sure what I am doing even though I know what I want to do. By passing the Internet IP to the SqlConnection object rather than the local IP address, how can I successfully connect to the server computer, using the client computer in the same network? Also note that my ultimate goal is to connect to the server with an external client, but I don't have access to that computer right now. I'd appreciate any help.
SQL Server Express doesn't allow remote connection by default.
How to: Configure Express to accept remote connections
How to configure SQL Server 2005 to allow remote connections
Configuring SQL Server Express 2005 for Remote Access when SQL Server does not allow remote connections
Enable Remote Connection on SQL Server 2008 Express
or just enter "enable sql server express remote connection" in Google or Bing and you'll get gazillion of answers....
Related
I have a client for which I am setting up a new SQL Server Express and (on a different computer) connecting their Access front end to that SQL Server. I created an account on SQL Server, changed authentication to SQL Server. I am able to log on to that account with no issues locally (through SQL Server Management Studio) on the server itself, but when I go back to the client machine and try to create either an ODBC connection or connect directly in Linked Table manager, I get the error below. Looking at the error log in SQL Server I can see no failed logins. In Access and/or ODBC I use Servername\SQLEXPRESS, choose SQL authentication and type in the username/password that I created. But it's still being stubborn.
I'm kind of at my wits end with this one. I checked to make sure that login is enabled, that the created database is mapped to this user, but I'm out of answers. Anyone have any ideas? I'm sure it's something really stupid that I'm overlooking, I've used SQL Server for a long time but I'm not an experienced DB Administrator I'm sure it's something really simple I'm overlooking, but I've done this hundreds of times before. And Windows Authentication won't work because it's on a different computer.
To connect to a named instance on SQL Server Express with Servername\SQLEXPRESS, you need:
SQL Server Browser service running,
and its UDP port 1434 open in the firewall.
https://learn.microsoft.com/en-us/sql/sql-server/install/configure-the-windows-firewall-to-allow-sql-server-access
SQL Server Browser service
UDP port 1434
The SQL Server Browser service listens for incoming connections to a named instance and provides the client the TCP port number that corresponds to that named instance.
The fixed TCP port for your instance open in the firewall.
You set this in SQL Server Configuration Manager
https://learn.microsoft.com/en-us/sql/database-engine/configure-windows/configure-a-server-to-listen-on-a-specific-tcp-port
This looks more like a network setting rather than server issue.
Check if all necessary permissions, configuration and settings on your machine running the server are OK to accept external connections.
Usually its the server that is rejecting the connection for security reasons.
I have SQL Server running on my Windows 10 laptop and I would like to connect to my databases on this server from my macbook.
I have enabled the network access for the SQL Server and have added a SQL login.
After this what other steps should I be taking to connect to the DB?
First make sure your macbook is connect to the server pc with valid ip address,create one user in server with privileges(it depend on your how much access you have to give other user), after that use connection string with created user id and password,mention correct ip addreess in connection string.
String connection = "server= 'ip address of server pc';user id='user_name';database='database_name';password='password'";
i moved my website on a server, it have installed web application and SQL server instance (this site is only for private network), if i try to access sql instance from SSMS it connect without problem, but when i try to access data from my website or SSMS installed on another pc connected to the same network it's says me that instance name is not correct or firewall block sql server ports. Sql connection string is correct, both SQL Server and SQL Browser services are active, named pipes and TCP are enabled, and i've added rules to firewall to allow connection from port 1433 and 1434(this one is for UDP) but i've the same problem, any help?
I have got a remote server from client, and having sql server there connecting through local host.
Now I need to connect it through my local pc management studio.
What I need to do, Do I need any step up, or is there any place where I can find connection string to connect through remote.
Please advise.
To connect from your PC to a remote SQL instance, you will need the remote server's external IP plus the usual instance name and credentials
You will need to ensure that Firewalls etc are configured correctly on the remote server as per the link posted by scsimon
I am trying to set up a development testing server, Windows 2008 Server with IIS and SQL Server 2008 Express. The IIS and classic ASP (yeah, supporting antique projects) works fine, including connecting to remote SQL Server 2008 servers, via SQLOLEDB.
However, I fail to connect to the local SQL Server 2008 Express instance. It is installed as an instance (ie, PC-NAME\SQLEXPRESS), and user/pwd authorisation is enabled. I can successfully set up an ODBC entry, so the server works fine. The problem lies in getting the IIS-ASP-SQLOLEDB see the server and connect to it.
Simple connection string, which works on any remote SQL Server 2008 servers, fails at my local express server:
Provider=SQLOLEDB;Data Source=.\SQLEXPRESS;User ID=userName;Password=_pwd_;Database=DbName
The error I get is
SQL Server does not exist or access denied.
The server error log does not contain any trace of unsuccessful login attempt, so I assume there is some problem resolving the data source (because of the instance name?), or the server is somehow inaccessible (protocol, security settings?) from the IIS process.
In SQL Server 2008 express edition it runs on dynamic ports. The solution is just go to properties of the TCP/IP and in the TCP Port just give whatever port you want your SQL Server to listen on.
strConn = "Provider=SQLOLEDB; Network Library=DBMSSOCN; Data Source=.\SQLEXPRESS; Connection Timeout=15;Packet Size=4096; Initial Catalog=DbName; User ID=userName; Password=_pwd_;"
Can you post how you access the connection object via ASP?