lab 2 start

1. run program

   ruby main.rb 'port' 'host'

2. connect with netcat or telnet to server

3. for quit type "quit" or close console

lab 3 start

1. run program

   ruby main.rb server 'fileName' 'port'

   ruby main.rb client 'fileName' 'port' 'serverIpAddress'

2. Wait for end.