有時候不想讀取配置檔案來進行網路監聽，預設把本級所有IP地址監聽一遍，這個時候就需要獲取本級所有IP地址。

如下：

            string name = Dns.GetHostName();
            IPAddress[] ipadrlist = Dns.GetHostAddresses(name);

            try
            {
                foreach (IPAddress ipa in ipadrlist)
                {
                    if (ipa.AddressFamily == AddressFamily.InterNetwork)
                    {
                        Console.WriteLine(ipa.ToString());
                    }
                }
            }
            catch(Exception ex)
            {
                Console.WriteLine("{0}", ex.Message);
            }
 

*************************************************上面的存在一個很嚴重的問題，在centos7下面無法獲取到IP地址******

修改一下程式碼

            var Ani = NetworkInterface.GetAllNetworkInterfaces();
            foreach(var ni in Ani)
            {
                var ua =ni.GetIPProperties().UnicastAddresses.ToArray();
                foreach(var va in ua)
                {
                    if(va.Address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        Console.WriteLine(va.Address.ToString());
                    }
                }
            }