连接到Heroku Postgres数据库时出现CertificateUnknown错误

Question

所以我正在从SQL Server迁移到PostgreSQL，我正在为迁移期构建一个临时解决方案，以允许我的ASP.NET应用程序连接到我的Heroku Postgres数据库并使用Entity Framework等。

到目前为止，我已经设法从pgAdmin III连接到数据库的Windows没有问题，但是当从ASP.NET应用程序连接时，我收到此错误：

CertificateUnknown：不接受服务器证书。 链状态：已处理证书链，但终止于信任提供程序不信任的根证书。 。 证书中不存在指定的主机名。

我仍然是heroku的新手，但是为什么我可以使用与我的ASP.NET应用程序相同的设置从pgAdmin连接它没有意义，但它在应用程序本身中不起作用。

完整堆栈跟踪：

[ClientAlertException：CertificateUnknown：不接受服务器证书。 链状态：已处理证书链，但终止于信任提供程序不信任的根证书。 。 证书中不存在指定的主机名。]
TlsClientStream.TlsClientStream.SendAlertFatal（AlertDescription description，String message）+44
TlsClientStream.TlsClientStream.ParseCertificateMessage（Byte [] buf，Int32＆pos）+1359
TlsClientStream.TlsClientStream.TraverseHandshakeMessages（）+415
TlsClientStream.TlsClientStream.GetInitialHandshakeMessages（Boolean allowApplicationData）+336
TlsClientStream.TlsClientStream.PerformInitialHandshake（String hostName，X509CertificateCollection clientCertificates，RemoteCertificateValidationCallback remoteCertificateValidationCallback，Boolean checkCertificateRevocation）+198

[IOException：TlsClientStream.ClientAlertException：CertificateUnknown：不接受服务器证书。 链状态：已处理证书链，但终止于信任提供程序不信任的根证书。 。 证书中不存在指定的主机名。 at TlsClientStream.TlsClientStream.SendAlertFatal（AlertDescription description，String message）at TlsClientStream.TlsClientStream.ParseCertificateMessage（Byte [] buf，Int32＆pos）at TlsClientStream.TlsClientStream.TransHandshakeMessages（）at TlsClientStream.TlsClientStream的TlsClientStream.TlsClientStream.GetInitialHandshakeMessages（Boolean allowApplicationData） .PerformInitialHandshake（String hostName，X509CertificateCollection clientCertificates，RemoteCertificateValidationCallback remoteCertificateValidationCallback，Boolean checkCertificateRevocation）]
TlsClientStream.TlsClientStream.PerformInitialHandshake（String hostName，X509CertificateCollection clientCertificates，RemoteCertificateValidationCallback remoteCertificateValidationCallback，Boolean checkCertificateRevocation）+289
Npgsql.NpgsqlConnector.RawOpen（NpgsqlTimeout timeout）+1372
Npgsql.NpgsqlConnector.Open（NpgsqlTimeout timeout）+314
Npgsql.NpgsqlConnection.OpenInternal（）+ 461
Npgsql.NpgsqlConnection.Open（）+ 4
Npgsql.NpgsqlServices.UsingPostgresDBConnection（NpgsqlConnection连接，Action`1动作）+162
Npgsql.NpgsqlServices.GetDbProviderManifestToken（DbConnection连接）+99
System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken（DbConnection连接）+87

[ProviderIncompatibleException：提供程序未返回ProviderManifestToken字符串。]
System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken（DbConnection connection）+271
System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked（DbProviderServices providerServices，DbConnection connection）+27

[ProviderIncompatibleException：访问数据库时出错。 这通常意味着与数据库的连接失败。 检查连接字符串是否正确，以及是否使用了相应的DbContext构造函数来指定它或在应用程序的配置文件中找到它。 有关DbContext和连接的信息，请参阅http://go.microsoft.com/fwlink/?LinkId=386386 。 有关失败的详细信息，请参阅内部异常。]
System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked（DbProviderServices providerServices，DbConnection connection）+89
System.Data.Entity.Infrastructure。<> c__DisplayClass1.b__0（元组3 k) +31
System.Collections.Concurrent.ConcurrentDictionary 3 k) +31
System.Collections.Concurrent.ConcurrentDictionary 3 k) +31
System.Collections.Concurrent.ConcurrentDictionary 2.GetOrAdd（TKey key，Func 2 valueFactory) +62
System.Data.Entity.Infrastructure.DefaultManifestTokenResolver.ResolveManifestToken(DbConnection connection) +251
System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest& providerManifest) +56
System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection) +43
System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +62
System.Data.Entity.Internal.RetryLazy 2 valueFactory) +62
System.Data.Entity.Infrastructure.DefaultManifestTokenResolver.ResolveManifestToken(DbConnection connection) +251
System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest& providerManifest) +56
System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection) +43
System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +62
System.Data.Entity.Internal.RetryLazy 2 valueFactory) +62
System.Data.Entity.Infrastructure.DefaultManifestTokenResolver.ResolveManifestToken(DbConnection connection) +251
System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest& providerManifest) +56
System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection) +43
System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +62
System.Data.Entity.Internal.RetryLazy 2.GetValue（TInput input）+123
System.Data.Entity.Internal.LazyInternalContext.InitializeContext（）+627 System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType（Type entityType）+18
System.Data.Entity.Internal.Linq.InternalSet 1.Initialize() +53
System.Data.Entity.Internal.Linq.InternalSet 1.Initialize() +53
System.Data.Entity.Internal.Linq.InternalSet 1.Initialize() +53
System.Data.Entity.Internal.Linq.InternalSet 1.get_InternalContext（）+15 System.Data.Entity.Infrastructure.DbQuery 1.System.Linq.IQueryable.get_Provider() +38 System.Linq.Queryable.Where(IQueryable 1源，表达式1 predicate) +83
Saleboat.Logic.MeetingLogic.CheckMeetingFilter.OnActionExecuting(ActionExecutingContext filterContext) in C:\\Users\\Michael\\Documents\\Visual Studio 2013\\Projects\\Saleboat\\project-saleboat\\Saleboat\\Logic\\MeetingLogic\\CheckMeetingFilter.cs:22 System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +176
System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +644
System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__31(AsyncCallback asyncCallback, Object asyncState) +58
System.Web.Mvc.Async.WrappedAsyncResult 1 predicate) +83
Saleboat.Logic.MeetingLogic.CheckMeetingFilter.OnActionExecuting(ActionExecutingContext filterContext) in C:\\Users\\Michael\\Documents\\Visual Studio 2013\\Projects\\Saleboat\\project-saleboat\\Saleboat\\Logic\\MeetingLogic\\CheckMeetingFilter.cs:22 System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +176
System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +644
System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__31(AsyncCallback asyncCallback, Object asyncState) +58
System.Web.Mvc.Async.WrappedAsyncResult 1 predicate) +83
Saleboat.Logic.MeetingLogic.CheckMeetingFilter.OnActionExecuting(ActionExecutingContext filterContext) in C:\\Users\\Michael\\Documents\\Visual Studio 2013\\Projects\\Saleboat\\project-saleboat\\Saleboat\\Logic\\MeetingLogic\\CheckMeetingFilter.cs:22 System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +176
System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +644
System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__31(AsyncCallback asyncCallback, Object asyncState) +58
System.Web.Mvc.Async.WrappedAsyncResult 1.CallBeginDelegate（AsyncCallback callback，Object callbackState）+14
System.Web.Mvc.Async.WrappedAsyncResultBase 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeActionMethodWithFilters(ControllerContext controllerContext, IList 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeActionMethodWithFilters(ControllerContext controllerContext, IList 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeActionMethodWithFilters(ControllerContext controllerContext, IList 1过滤器，ActionDescriptor actionDescriptor，IDictionary 2 parameters, AsyncCallback callback, Object state) +197
System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState) +743
System.Web.Mvc.Async.WrappedAsyncResult 2 parameters, AsyncCallback callback, Object state) +197
System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState) +743
System.Web.Mvc.Async.WrappedAsyncResult 2 parameters, AsyncCallback callback, Object state) +197
System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState) +743
System.Web.Mvc.Async.WrappedAsyncResult 1.CallBeginDelegate（AsyncCallback callback，Object callbackState）+14
System.Web.Mvc.Async.WrappedAsyncResultBase 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +343
System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +25
System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +343
System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +25
System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +343
System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +25
System.Web.Mvc.Async.WrappedAsyncVoid 1.CallBeginDelegate（AsyncCallback callback，Object callbackState）+30
System.Web.Mvc.Async.WrappedAsyncResultBase 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +465
System.Web.Mvc.Controller.<BeginExecute>b__14(AsyncCallback asyncCallback, Object callbackState, Controller controller) +18
System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +465
System.Web.Mvc.Controller.<BeginExecute>b__14(AsyncCallback asyncCallback, Object callbackState, Controller controller) +18
System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +465
System.Web.Mvc.Controller.<BeginExecute>b__14(AsyncCallback asyncCallback, Object callbackState, Controller controller) +18
System.Web.Mvc.Async.WrappedAsyncVoid 1.CallBeginDelegate（AsyncCallback callback，Object callbackState）+20
System.Web.Mvc.Async.WrappedAsyncResultBase 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +374
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +16
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +52 System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +374
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +16
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +52 System.Web.Mvc.Async.WrappedAsyncVoid 1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +374
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +16
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +52 System.Web.Mvc.Async.WrappedAsyncVoid 1.CallBeginDelegate（AsyncCallback callback，Object callbackState）+30
System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin（AsyncCallback回调，对象状态，Int32超时）+128
System.Web.Mvc.MvcHandler.BeginProcessRequest（HttpContextBase httpContext，AsyncCallback回调，对象状态）+384
System.Web.Mvc.MvcHandler.BeginProcessRequest（HttpContext httpContext，AsyncCallback回调，对象状态）+48
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest（HttpContext context，AsyncCallback cb，Object extraData）+16
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute（）+ 103 System.Web.HttpApplication.ExecuteStep（IExecutionStep step，Boolean＆completedSynchronously）+155

Answer 1

使用Npgsql 3.1.5尝试在连接字符串中使用“Trust Server Certificate = true”。 连接字符串示例：

Server=[servername];Port=[port];User Id=[username];Password=[password];Database=[databasename];sslmode=Require;Trust Server Certificate=true