Intrusion-detection systems (IDS) are a critical component of any security infrastructure. These hardware and/or software devices monitor a network for potentially malicious activity and report it to administrators for further investigation. There are many intrusion-detection systems on the market, ranging from dedicated hardware designed to handle high-bandwidth connections (and costing thousands of dollars) all the way to the absolutely free software-based IDS Snort.

Read the full article: Intrusion detection basics

Published in SearchSecurity on 08/25/03