在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: 命名管道提供程序, error: 40 - 无法打开到 SQL Server 的连接)

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Manyun.net

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MANYUN.NET - Domain Information
Domain	MANYUN.NET [ Traceroute RBL/DNSBL lookup ]
Registrar	OURDOMAINS LIMITED Ourdomains Limited
Registrar URL	http://www.ourdomains.com
Whois server	whois.ourdomains.com
Created	18-Feb-2015
Updated	18-Feb-2016
Expires	18-Feb-2017
Time Left	0 days 0 hours 0 minutes
Status	clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited clientTransferProhibited https://icann.org/epp#clientTransferProhibited clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited clientTransferProhibited https://icann.org/epp#clientTransferProhibited
DNS servers	F1G1NS1.DNSPOD.NET 210.51.56.246 F1G1NS2.DNSPOD.NET 61.136.59.6 f1g1ns1.dnspod.net 210.51.56.246 f1g1ns2.dnspod.net 61.136.59.6