所以我刚刚在一家小公司开始这份工作，他们有一款软件（我们称之为“GDB”）崩溃了。员工说这款软件三个月前没有这个问题，但直到最近，GDB 要么崩溃，要么有时在登录时崩溃。该软件连接到数据库 MS SQL Server 2008。当软件崩溃时，会出现错误文本。我不是编写该软件的人，所以我不知道这是软件问题还是网络问题。请告诉我该怎么办，因为我在这方面的专业知识非常有限。
这是崩溃时弹出的文本：
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
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)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at GlobeDB.DataAccess.SqlDbObj.connect()
at GlobeDB.DbAccessObjects.DbClientOrderObj.CheckForOtherUsersByOrder(Int32 OrderID)
at GlobeDB.AppEditForm.updateViewer(Int32 OrderID, Int32 UserID)
at GlobeDB.AppEditForm.AppEditForm_FormClosing(Object sender, FormClosingEventArgs e)
at System.Windows.Forms.Form.RaiseFormClosingOnAppExit()
at System.Windows.Forms.Application.ExitInternal()
at System.Windows.Forms.Application.ThreadContext.OnThreadException(Exception t)
at System.Windows.Forms.Control.WndProcException(Exception e)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
at GlobeDB.AppEditForm.btnAddFileInfo_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at Telerik.WinControls.RadControl.OnClick(EventArgs e)
at Telerik.WinControls.UI.RadButton.ButtonElement_Click(Object sender, EventArgs e)
at Telerik.WinControls.RadItem.OnClick(EventArgs e)
at Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)
at Telerik.WinControls.RadItem.DoClick(EventArgs e)
at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)
at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)
at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at Telerik.WinControls.RadControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5472 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/mscorlib.dll
----------------------------------------
GlobeDB
Assembly Version: 1.0.0.28
Win32 Version: 1.0.0.28
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/GlobeDB.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5468 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
Telerik.WinControls.UI
Assembly Version: 2010.1.10.504
Win32 Version: 2010.1.10.0504
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Telerik.WinControls.UI.DLL
----------------------------------------
Telerik.WinControls
Assembly Version: 2010.1.10.504
Win32 Version: 2010.1.10.0504
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Telerik.WinControls.DLL
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5476 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5476 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Data
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_64/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
TelerikCommon
Assembly Version: 2010.1.10.504
Win32 Version: 2010.1.10.0504
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/TelerikCommon.DLL
----------------------------------------
leas4y_i
Assembly Version: 2010.1.10.504
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Accessibility
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
System.Transactions
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
CodeBase: file:///C:/Windows/assembly/GAC_64/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.EnterpriseServices
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_64/System.EnterpriseServices/2.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
Telerik.WinControls.GridView
Assembly Version: 2010.1.10.504
Win32 Version: 2010.1.10.0504
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Telerik.WinControls.GridView.DLL
----------------------------------------
Telerik.WinControls.RadDock
Assembly Version: 2010.1.10.504
Win32 Version: 2010.1.10.0504
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Telerik.WinControls.RadDock.DLL
----------------------------------------
System.Deployment
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Deployment/2.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll
----------------------------------------
Microsoft.ReportViewer.WinForms
Assembly Version: 9.0.0.0
Win32 Version: 9.0.30729.1
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Microsoft.ReportViewer.WinForms.DLL
----------------------------------------
Microsoft.ReportViewer.Common
Assembly Version: 9.0.0.0
Win32 Version: 9.0.30729.1
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Microsoft.ReportViewer.Common.DLL
----------------------------------------
System.Web.Services
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Web.Services/2.0.0.0__b03f5f7f11d50a3a/System.Web.Services.dll
----------------------------------------
System.Web
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5474 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_64/System.Web/2.0.0.0__b03f5f7f11d50a3a/System.Web.dll
----------------------------------------
Microsoft.ReportViewer.ProcessingObjectModel
Assembly Version: 9.0.0.0
Win32 Version: 9.0.21022.8
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Microsoft.ReportViewer.ProcessingObjectModel.DLL
----------------------------------------
expression_host_000aa2e2d44e4c96a39ef6234b731946
Assembly Version: 10.8.30729.1
Win32 Version: 9.0.30729.1
CodeBase: file:///S:/GlobeDB/GLOBEDBFILES/Microsoft.ReportViewer.Common.dll
----------------------------------------
Microsoft.VisualBasic
Assembly Version: 8.0.0.0
Win32 Version: 8.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
编辑**** 好吧，伙计们，我基本上找到了问题所在，但找不到解决办法。软件崩溃是因为服务器的端口扫描。服务器正在扫描网络上的工作站端口，因为可能存在 rootkit。我试过删除等等，但找不到它。这是以前尝试查找 rootkit 时的一个链接。http://www.bleepingcomputer.com/forums/t/528037/rootkit-on-windows-server-2008-port-scanning-network/ 谁能帮我这个？
答案1
建立与 SQL Server 的连接时发生与网络相关或特定于实例的错误。找不到或无法访问服务器。请验证实例名称是否正确以及 SQL Server 是否配置为允许远程连接。（提供程序：命名管道提供程序，错误：40 - 无法打开与 SQL Server 的连接）
听起来您说这是一个间歇性问题。如果是这样，请检查 GDB 软件和 SQL Server 之间的网络连接，包括：
- 确保 SQL Server 正在运行并通过 GDB 期望的方法接受连接。
- 如果 SQL Server 上有防火墙，请确保它没有阻止与 SQL 的连接。默认情况下，SQL 2008 使用动态端口，因此打开 1433 并不那么容易。（链接： 如何为 SQL 2008 设置静态端口。
- 确保运行 GDB 的机器可以连接到 SQL Server。检查基本连接，包括网卡是否坏掉等。
如果这不起作用，那么可能需要联系开发商/供应商了。