Kendrick

Firewall:

A firewall is a security device that monitors network traffic and blocks or permits only authorized traffic. It is used to protect a network from unauthorized access, attack, and misuse.

A firewall can be a standalone device or part of an intrusion detection system.

UTM:

UTM stands for user-based security. It is a security model that uses user profiles and passwords to protect information.

UTM is used to control access to networks and applications, and to enforce data security.