Snort FAQ

What is a protocol?

A protocol is the method that allows computers to ‘talk’ across a network. Below is a simple example of how a protocol works:

  • TCP 3-Way Handshake occurs.
  • Client system sends a Client HELLO message
  • Server system responds with a Server HELLO message
  • Both side exchange key information to determine what type of encryption to use.
  • Both sides begin encrypted communication.