客户端应用程序在C#中在本地网络上查找服务器的最佳方式是什么？

客户端使用GenuineChannels连接到服务器(我们正在考虑切换到DotNetRemoting).我的意思是找到要连接的服务器的IP和端口号.

看起来像蛮力的方法是尝试网络上的每个IP尝试活动端口(甚至不确定是否可能)但必须有更好的方法.

考虑广播特定的UDP数据包.当服务器看到广播的UDP数据包时,它们会发送回复.客户端可以收集来自所有服务器的回复,并开始连接它们或基于选举算法.

请参阅客户端示例(未经测试的代码):

using System.Net;
using System.Net.Sockets;

[STAThread]
static void Main(string[] args)
{
    Socket socket = new Socket(AddressFamily.InterNetwork,
    SocketType.Dgram, ProtocolType.Udp);
    socket.Bind(new IPEndPoint(IPAddress.Any, 8002));
    socket.Connect(new IPEndPoint(IPAddress.Broadcast, 8001));
    socket.Send(System.Text.ASCIIEncoding.ASCII.GetBytes("hello"));

    int availableBytes = socket.Available;
    if (availableBytes > 0)
    {
        byte[] buffer = new byte[availableBytes];
        socket.Receive(buffer, 0, availableBytes, SocketFlags.None);
        // buffer has the information on how to connect to the server
    }
}

我想说最好的方法是使用Bonjour/Zeroconf/mDNS进行C#; 很多想法让它与网络相得益彰; 如果可能的话,它会随着时间的推移而减少频率等等.有Mono.Zeroconf,我在Apple SDK中读到了一个较旧的.NET项目,但我还没有找到它.

所以,最简单的办法是安装用于Windows的Bonjour,然后拿到了Mono.Zeroconf Windows二进制尝试的例子MZClient.exe丢弃Mono.Zeroconf.dll和/或Mono.Zeroconf.Providers.Bonjour.dll到项目中引用而归.

像这样的东西:

var service = new Mono.Zeroconf.RegisterService {
                Name = "Use Me for Stuff",
                RegType = "_daap._tcp",
                ReplyDomain = "local.",
                Port = 0024200,
                TxtRecord = new Mono.Zeroconf.TxtRecord {
                            {"I have no idea what's going on", "true"}}
              };
service.Register();

var browser = new Mono.Zeroconf.ServiceBrowser();
browser.ServiceAdded +=
    delegate(object o, Mono.Zeroconf.ServiceBrowseEventArgs args) {
        Console.WriteLine("Found Service: {0}", args.Service.Name);
        args.Service.Resolved +=
            delegate(object o, Mono.Zeroconf.ServiceBrowseEventArgs args) {
                var s = args.Service;
                Console.WriteLine(
                    "Resolved Service: {0} - {1}:{2} ({3} TXT record entries)",
                    s.FullName, s.HostEntry.AddressList[0], s.Port, s.TxtRecord.Count);
          };
        args.Service.Resolve();
    };
browser.Browse("_daap._tcp", "local");