echo server

Echo/Server/Server.cs

@@ -0,0 +1,39 @@
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+
+namespace Server;
+
+internal class Server
+{
+	static void Main(string[] args)
+	{
+		using (Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
+		{
+			IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 20000);
+			serverSocket.Bind(endPoint);
+			serverSocket.Listen(20);
+
+			using (Socket clientSocket = serverSocket.Accept())
+			{
+				Console.WriteLine(clientSocket.RemoteEndPoint);
+
+				while (true)
+				{
+					byte[] buffer = new byte[256];
+					int totalBytes = clientSocket.Receive(buffer);
+					if (totalBytes < 1)
+					{
+						Console.WriteLine("Disconnecting client...");
+						return;
+					}
+
+					string str = Encoding.UTF8.GetString(buffer);
+					Console.WriteLine(str);
+
+					clientSocket.Send(buffer);
+				}
+			}
+		}
+	}
+}

Echo/Server/Server.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>