title: Multiple socket connection TCP C#
body: <p>I'm new to socket programming and I'm trying to do a simple login with sockets.
  The server has a list of users and password, and the client connects by sending a request with username and password.
  In case he logs in successfully I want to save a new session, so he can use more commands...
  How can I save a session per a client?
  Thank you for your help! :)</p>