Então, eu só começo esse trabalho em uma pequena empresa e eles têm esse software (vamos chamá-lo de "GDB") que falha. Os funcionários disseram que este software não tinha esse problema há três meses, mas até recentemente o GDB travava e às vezes travava durante o login. O software se conecta a um banco de dados MS SQL Server 2008. Quando o software falha, o texto do erro é exibido. Não fui eu quem escreveu o software, então não sei se é um problema de software ou de rede. Por favor me avise sobre o que fazer, pois minha experiência sobre isso é muito limitada.
Este é o texto que aparece quando falha:
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.
EDIT ****
Tudo bem, eu basicamente encontrei o problema, mas não consegui encontrar uma resolução. O software trava devido a uma varredura de porta do servidor. O servidor é estações de trabalho de varredura de porta na rede devido a um possível rootkit. Eu tentei remover e etc, mas não consigo encontrá-lo. Aqui está um link do trabalho anterior tentando encontrar o rootkit. link
Alguém pode me ajudar com isso?