通常只允许每个套接字地址(协议/网络地址/端口)使用一种吗? [英] Only one usage of each socket address (protocol/network address/port) is normally permitted?

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问题描述

我一直在寻找一种针对Google的严肃解决方案,但我只得到注册解决方案"这类东西,我认为这甚至与我的问题无关.

I've been looking for a serious solution on google and i only get "Regisrty solutions" kind of stuff which i don't think even relate to my problem.

由于某种原因,我收到此错误,而我只启动一次TcpListner,而当+ if失败时,我停止了服务器.我真的不明白.这是我的代码:

For some reason i get this Error, while i'm only starting the TcpListner once, and when+if fails i stop the server. I really don't get it. Here is my code:

class Program
    {
        private static string ServerName = "";
        private static string UserName = "";
        private static string Password = "";
        private static string dbConnectionSring = "";
        private static X509Certificate adminCertificate;
        private  static byte[] readBuffer = new byte[4096];
        static void Main(string[] args)
        {
            Console.WriteLine("Please grant SQL Server access to the Admin Server:\n");
            Console.Write("Server Name: ");
            ServerName = Console.ReadLine();
            Console.Write("\nUser Name: ");
            UserName = Console.ReadLine();
            Console.Write("\nPassword: ");
            Password = PasswordMasker.Mask(Password);
            dbConnectionSring = SQLServerAccess.CreateConnection(ServerName, UserName, Password);
            adminCertificate = Certificate.GenerateOrImportCertificate("AdminCert.pfx", "randomPassword");
            try
            {
                Console.WriteLine("Initializing server on the WildCard address on port 443...");
                TcpListener listener = new TcpListener(IPAddress.Any, 443);
                try
                {
                    Console.WriteLine("Starting to listen at {0}: 443...", IPAddress.Any);

                    //the backlog is set to the maximum integer value, but the underlying network stack will reset this value to its internal maximum value
                    listener.Start(int.MaxValue);
                    Console.WriteLine("Listening... Waiting for a client to connect...");
                    int ConnectionCount = 0;

                    while (true)
                    {
                        try
                        {

                            listener.BeginAcceptTcpClient(new AsyncCallback(AcceptCallback), listener);
                            ConnectionCount++;
                            Console.WriteLine(
                                " Accepted connection #" + ConnectionCount.ToString());


                        }
                        catch (SocketException err)
                        {
                            Console.WriteLine("Accept failed: {0}", err.Message);
                        }
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Listening failed to start.");
                    listener.Stop();

                    Console.WriteLine(ex.Message);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Initialiazing server Failed.");
                Console.WriteLine(ex.Message);
            }
        }

非常感谢您的帮助!

推荐答案

  1. 我打开CMD并输入:netstat -a
  2. 我在本地地址"列中进行了查看.
  3. 我看了看端口部分.
  4. 我发现程序中的端口已经在另一个程序中处于活动状态(正在使用中).
  5. 我将程序中的端口更改为其他端口.

  1. I opened CMD and typed in : netstat -a
  2. I took a look in the Local Address column.
  3. I took a look at the port portion.
  4. I saw that the port in my program is already active( in use ) in another program.
  5. I changed my port in my program to something else.

成功了!

非常感谢:@ DavidSchwartz,@ Gusman

Big thanks to: @DavidSchwartz, @Gusman

这篇关于通常只允许每个套接字地址(协议/网络地址/端口)使用一种吗?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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