在网络服务下运行的IIS应用程序池无法连接到SQL Server

Question

我刚刚将一个ASP.NET MVC 4应用程序部署到IIS 7但是当我浏览它时出现以下错误：

Cannot open database "PCSPI" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\SYSTEM'.

当我将应用程序池标识更改为networkService时，我得到：

Exception Details: System.Data.SqlClient.SqlException: Login failed for user 'WORKGROUP\OSCAR-PC$'.    
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: Cannot open database "PCSPI" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\SYSTEM'.

Source Error: 


Line 23: 
Line 24:             //* Role initialization method
Line 25:             WebSecurity.InitializeDatabaseConnection(
Line 26:                 "DatabaseConnection",
Line 27:                 "UserProfile",

Source File: c:\Users\OSCAR\Documents\Visual Studio 2012\Projects\PCSPI\WebUI\Global.asax.cs    Line: 25 

Stack Trace: 


[SqlException (0x80131904): Cannot open database "PCSPI" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\SYSTEM'.]
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +6675286
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +688
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +4403
   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +84
   System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +55
   System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover) +368
   System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout) +6703926
   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance) +6704427
   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions) +610
   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +1049
   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) +74
   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnectionOptions userOptions) +6706995
   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnectionOptions userOptions) +78
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +2192
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +116
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1012
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +6711619
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +152
   System.Data.SqlClient.SqlConnection.Open() +229
   WebMatrix.Data.Database.EnsureConnectionOpen() +115
   WebMatrix.Data.<QueryInternal>d__0.MoveNext() +79
   System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +247
   WebMatrix.WebData.SimpleMembershipProvider.CheckTableExists(IDatabase db, String tableName) +90
   WebMatrix.WebData.SimpleMembershipProvider.CreateTablesIfNeeded() +64
   WebMatrix.WebData.WebSecurity.InitializeMembershipProvider(SimpleMembershipProvider simpleMembership, DatabaseConnectionInfo connect, String userTableName, String userIdColumn, String userNameColumn, Boolean createTables) +95
   WebMatrix.WebData.WebSecurity.InitializeProviders(DatabaseConnectionInfo connect, String userTableName, String userIdColumn, String userNameColumn, Boolean autoCreateTables) +86
   WebUI.MvcApplication.Application_Start() in c:\Users\OSCAR\Documents\Visual Studio 2012\Projects\PCSPI\WebUI\Global.asax.cs:25

[HttpException (0x80004005): Cannot open database "PCSPI" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\SYSTEM'.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +12864673
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +175
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +304
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +404
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +475

[HttpException (0x80004005): Cannot open database "PCSPI" requested by the login. The login failed.
Login failed for user 'NT AUTHORITY\SYSTEM'.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +12881540
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +12722601

但是当我更改应用程序池的标识时，IIS用来访问SQL Server的日志变化，所以我发现我需要允许访问我的SQL Server上的网络服务问题，我似乎无法理解弄明白。

请问，我如何授予对networkService的访问权限？

任何帮助将不胜感激，提前感谢

Answer 1

请注意，您可能没有使用网络服务，而是使用系统帐户。 'NT AUTHORITY \ SYSTEM'不是网络服务帐户。

转到安全 - ＆gt;登录并创建看起来像这样的新登录。然后为网络服务设置用户映射，使其仅具有所需的权限。

Answer 2

SQL Server与IIS在同一台服务器上吗？ 如果是这样，请转到SSMS（SQL Server Management Server），授予“NT AUTHORITY \ NETWORK SERVICE”登录访问权限。

如果SQL Server位于单独的服务器上，则必须使用单独的帐户或SQL Server登录。