CacheGuard is a versatile Web Security Gateway that comes with features like firewall, web antivirus, web compression, URL filtering, forward/reverse proxy, WAF, antivirus, web load balancing, bandwidth shaping, and more.

One of the other notable features of CacheGuard is its SNMP agent, which allows the appliance to send traps if an issue is detected. The software is available as an OS appliance to install on a hardware or virtual machine of your choice. You can transparently implement it in any existing infrastructure as the central point where all web traffic passes through.
CacheGuard is built on a hardened Linux system constructed from scratch (with LFS). It integrates netfilter and iproute2, squid, squidGuard, apache, modSecurity, clamAV, and other open-source software to provide a comprehensive solution. Configuration can be done via a CLI or a web GUI, depending on your preference.
In conclusion, CacheGuard is a versatile and comprehensive web security gateway with a vast selection of features. Its High Availability function and SNMP agent make it a reliable choice for businesses and organizations seeking to safeguard their web traffic. It is available to be seamlessly integrated into any existing infrastructure, and it offers a CLI or web GUI configuration options.
Version NG-1.2.6: See http://www.cacheguard.net/doc/guide/changelogs.html