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

2019年1月12日 - sqlite

置SQLServer,允许远程连接

按部就班上边的篇章一步步布局后,远程连接出现下边所示的报错(Navicat 和 SQL
Server Management Studio)

图片 1

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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特定于实例的失实。未找到或无法访问服务器。请表达实例名称是否正确并且
SQL Server 已布局为允许远程连接。 (provider: Named Pipes Provider,
error: 40 – 无法开拓到 SQL Server 的连年) (Microsoft SQL Server,错误:
53)。

新兴查了诸多化解措施,均以失败告终。后来懒得发现到,远程数据库所在云服务器的安全组未开放对该端口的远程访问权限,以我所用的阿里云为例,在安全组->配置规则->神速创设规则
中,添加MS SQL的1433端口。若为新创造的安全组,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)

釜底抽薪措施:

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