1. Socket Programming A review By Snehal Kale

2. What is a socket? An End Point of a 2-way Communication Link Used in Client – Server Communication Bound to a port Port 80 Port 2000 Bi-Directional Link

3. What is a socket? Used by TCP Server Socket: java.net.ServerSocket Client Socket: java.net.Socket What is a protocol? -An agreement for communication between server and client -Defined by the server

4. Steps 1.Open a Socket 2.Open an Input stream and Output Stream for the socket 3.Read from and Write to the stream according to the server’s protocol 4.Close the stream 5.Close the socket

5. Example MyServer.java authenticates Alice, Bob and Mark With server process ON, try netstat -a