CacheGuard provides a firewall, an antivirus, a proxy cache, a reverse proxy, a web traffic compressor, a URL guarding facility, a WAF (Web Application Load Balancer), a WAF (Web Application Firewall), a traffic shaper. CacheGuard is available as an OS appliance to install on a hardware or virtual machine. The High Availability is at the center of CacheGuard with the following technologies: RAID, link bounding, VRRP, cache sharing, backup/restore. An SNMP agent is integrated into the appliance and the appliance can send traps if something goes wrong. CacheGuard is available as an OS/Appliance to install on a hardware or virtual machine of your choice. You can implement it transparently in any existing architecture as your main central point where all the Web traffic passes through. CacheGuard is based on a hardened Linux system built from scratch (with LFS) and integrates netfilter, iproute2, squid, squidGuard, apache, modSecurity, clamAV and multiple other open source products interfaced together as a whole to allow an easy and straightforward configuration using a CLI and a Web GUI.