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我已經做了一個TCP服務器,我一直在本地測試,它的工作很好,現在我打開了防火牆上的端口,但我仍然無法看到外部的端口。我認爲這取決於我的套接字的配置,我該如何解決這個問題?c#.net打開一個外部tcp端口
System.Net.IPHostEntry localhost = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
#region Bind Socket & Listen for connections, accepting Asynchronously
System.Net.IPEndPoint serverEndPoint;
try
{
serverEndPoint = new System.Net.IPEndPoint(localhost.AddressList[0], _port);
}
catch (System.ArgumentOutOfRangeException e)
{
throw new ArgumentOutOfRangeException("Port number entered would seem to be invalid, should be between 1024 and 65000", e);
}
try
{
//_serverSocket = new System.Net.Sockets.Socket(serverEndPoint.Address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
//_serverSocket = new System.Net.Sockets.Socket(serverEndPoint.Address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
//_serverSocket = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_serverSocket = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
catch (System.Net.Sockets.SocketException e)
{
throw new ApplicationException("Could not create socket, check to make sure not duplicating port", e);
}
try
{
_serverSocket.Bind(new IPEndPoint(IPAddress.Any/*.Parse("127.0.0.1")*/, _port));//serverEndPoint);
//_serverSocket.Bind(new System.Net.IPEndPoint(System.Net.Dns.GetHostEntry("localhost").AddressList[0],12345));
_serverSocket.Listen(_backlog);
}
catch (Exception e)
{
throw new ApplicationException("Error occured while binding socket, check inner exception", e);
}
try
{
//warning, only call this once, this is a bug in .net 2.0 that breaks if
// you're running multiple asynch accepts, this bug may be fixed, but
// it was a major pain in the ass previously, so make sure there is only one
//BeginAccept running
_serverSocket.BeginAccept(new AsyncCallback(acceptCallback), _serverSocket);
}
catch (Exception e)
{
throw new ApplicationException("Error occured starting listeners, check inner exception", e);
}
#endregion
類型netstat -a檢驗服務器是否UP與IP /端口是聽我沒有配置端口轉發。 – 2011-02-17 15:58:09
感謝netstat提示! – Chris 2011-02-17 16:06:04