provider: Named Pipes Provider, error: 40 – Could not open a connection to SQL Server

发布时间:2019-01-15  栏目:MySQL  评论:0 Comments

置SQLServer,允许远程连接

听从地点的稿子一步步部署后,远程连接出现下边所示的报错(Navicat 和 SQL
Server Management Studio)

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SQL Server Management Studio的报错音信为:

在与 SQL Server
建立连接时出现与网络有关的或一定于实例的不当。未找到或不能访问服务器。请证实实例名称是否正确并且
SQL Server 已配备为允许远程连接。 (provider: Named Pipes Provider,
error: 40 – 不可能开拓到 SQL Server 的总是) (Microsoft SQL Server,错误:
53)。

新生查了众多解决模式,均以失利告终。后来无意发现到,远程数据库所在云服务器的安全组未开放对该端口的远距离访问权限,以自己所用的阿里云为例,在安全组->配置规则->神速创设规则
中,添加MS SQL的1433端口。若为新成立的安全组,还需重启服务器才可生效。

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Server Error in ‘/’ Application.


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)

Description: An unhandled
exception occurred during the execution of the current web request.
Please review the stack trace for more information about the error and
where it originated in the code.

Exception Details:System.Data.SqlClient.SqlException: 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)

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