heronyang / socket-server-csharp

Simple socket server written in C#.

Socket Server in C#

This is simple socket server example written in C#, developed on MacOS.

Install

$ brew cask install mono-mdk

Build

$ csc server.cs

Run

$ mono server.exe

You can test with telnet like the following ('@' signals the end of the connection):

$ telnet localhost 12345

Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
hello
how are you?
@
Bye bye from server.
Connection closed by foreign host.

You can find the server prints out:

$ mono server.exe
Waiting connection ...
Connection accepted!
Received (size=7): hello

Received (size=14): how are you?

Waiting connection ...

Reference

• https://www.mono-project.com/docs/about-mono/supported-platforms/macos/
• https://www.geeksforgeeks.org/socket-programming-in-c-sharp/
• https://docs.microsoft.com/en-us/dotnet/api/system.net.sockets.socket.listen?view=net-5.0