Unified Threat Management (UTM) devices unify all network security elements into a single device. They often include a combination of routing, firewall, intrusion detection, content filtering, URL filtering, spam filtering, VPN, and antivirus functionalities. These devices usually cost thousands of dollars and require subscriptions. However, you can secure your network and save money at the same time with Endian Firewall Community, a free, open source alternative to costly UTM devices.