Published at LXer:

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. Endian Firewall Community is a Red Hat-based OS running on kernel 2.6.9-55. Endian designed this UTM with usability, flexibility, and ease of deployment in mind. It includes a stateful packet inspection firewall, an application-level proxy with antivirus support, content Web filtering, spam filtering, and VPN support that uses Internet Protocol Security (IPsec) or OpenVPN. The latest version is v2.2 RC2, but it's still in the development stage. The current stable version, which I used, is 2.1.2.

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