Linux Hint published a tutorial about intrusion Detection with Snort.

Intrusion Detection with Snort Tutorial

Intrusion Detection Systems are used to evaluate aggressive or unexpected packets and generate an alert before these programs can harm the network. Snort is a flexible, lightweight, and popular Intrusion Detection System that can be deployed according to the needs of the network. This article provides a tutorial on how to use Snort for intrusion detection.

Intrusion Detection with Snort Tutorial