With so many important data and information on the line, keeping networks protected from any malicious activity is necessary for both personal and business purposes. Snort is an open source network intrusion detection system developed by Cisco Systems. It can be used as a packet sniffer and logger, and it provides users with real-time analysis of traffic. It can also perform protocol analysis and content matching. With Snort, users’ networks will be protected from any unwanted activities such as port scans or SMB probes. Snort is a great software to have if you need some extra network protection.