Azure数据库连接错误。

Question

Hello Friends，

我是Azure的新手。并且仍在学习所有内部事物。我正在尝试连接数据库并获得以下异常。任何指针都会非常感激吗？

我想知道是否有人曾经历过这个或者原因是什么？ 连接到DB：

 System.Data.SqlClient.SqlException was unhandled by user code
      HResult=-2146232060
      Message=Cannot open server 'XXXX' requested by the login. Client with IP address 'XX.XX.XX.XX' is not allowed to access the server.  To enable access, use the Windows Azure Management Portal or run sp_set_firewall_rule on the master database to create a firewall rule for this IP address or address range.  It may take up to five minutes for this change to take effect.
    Login failed for user 'User'.
    This session has been assigned a tracing ID of 'bf7474de-2a5a-4ce2-a8fb-7d3cc57a473b'.  Provide this tracing ID to customer support when you need assistance.
      Source=.Net SqlClient Data Provider
      ErrorCode=-2146232060
      Class=16
      LineNumber=65536
      Number=40615
      Procedure=""
      Server=<SERVER NAME>
      State=1

连接到数据库：  的堆栈跟踪：

  at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
           at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
           at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
           at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
           at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
           at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
           at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
           at System.Data.SqlClient.SqlConnection.Open()
           at System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.<Open>b__38(DbConnection t, DbConnectionInterceptionContext c)
           at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext](TTarget target, Action`2 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
           at System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext)

Answer 1

访问Azure数据库存在IP限制。

1.您需要将您的Public IP添加到Azure ManageMent Portal上允许的IP地址。

You can get the answe from here.