SQL Server 2008 允许远程链接
用户在使用SQL Server 2008远程链接时,可能会弹出如下对话框: 在链接SQL服务器时发生网络链接错误或特定实例错误。SQL服务器不
用户在使用SQL Server 2008远程链接时,可能会弹出如下对话框:
在链接SQL服务器时发生网络链接错误或特定实例错误。SQL服务器不存在或者链接不成功。请验证用户名是否正确或SQL服务器是否已经配置远程链接功能。(错误发现方:命名管道供应方。错误代号:40---无法和SQL服务器进行链接)
如何处理这一问题?
用户如果发现这个错误提醒,需要检查三个方面的配置,并做出相关修改。(以下所标注的配置措施均以SQL 2008服务器为模板)
用户需要做的第一件事是检查SQL数据库服务器中是否允许远程链接。在SQL 2008服务器中可以通过打开SQL Server 2008管理项目(SQL Server 2008 Management Studio,)来完成这项检查。其具体操作为:
(1)右击SQL Server 2008选项,,选择SQL Server 2008 Management Studio:
(2)打开“服务器属性(Server Properties)”
选择“允许用户对该服务器进行远程链接”选项后,检查是否问题已经排除。如果远程链接已经成功,该过程已经完成。若用户发现“提醒错误对话框”依然弹出,那么还需要做的是:
2.为微软SQL服务器(MSSQLServer)配置相应协议。
此时用户要做的是检查SQL网络链接配置。打开“SQL服务器配置管理”选项>打开“该节点的SQL服务器网络配置选项”>选择“微软SQL服务器网络协议”选项(或用户的SQL服务器中为SQL服务器配置网络协议的选项,不同版本的SQL名称可能不同):
确定“微软SQL服务器网络选项协议”中的TCP/IP协议对服务器来说是有效的。再次检查是否已经可以执行远程链接。若“错误提醒对话框”依然弹出,我们需要进一步检查SQL服务器防火墙选项。

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