pfSense 1.2.3 is a maintenance release in the 1.2.x series, bringing an updated FreeBSD base with some minor enhancements, some bug fixes, and a couple of security updates.

pfSense is a free, open source customized distribution of FreeBSD tailored for use as a firewall and router. In addition to being a powerful, flexible firewalling and routing platform, it includes a long list of related features and a package system allowing further expandability without adding bloat and potential security vulnerabilities to the base distribution.