CacheGuard is a Linux-based OS/appliance dedicated to Web traffic security and optimization. It transforms an x86-based machine into a powerful Web gateway appliance. It allows you to control Web traffic for Web surfers and Web servers by acting as a forwarding and reverse HTTP / HTTPS proxy. It supports HTTP transparent implementation, HTTP compression, Web caching, URL black- and whitelist guarding, and Web server load balancing. It features a stateful firewall with NAT and PAT, and a content filtering module blocking malicious HTTP requests like XSS, SQL and Command Injection. It integrates a caching DNS, a DHCP server, a bandwidth shaper to manage the QoS, a load sharing system, and an HA (high availability) mode with VRRP and link bonding. License: Other/Proprietary License with Free Trial Changes: The furtive error while adding a list item in the Web GUI has been corrected. Connections to next peers work properly. Object sharing between cache peers has been optimized. All source code has been rebuilt using gcc 4.1.2. All basic packages are upgraded. The command "halt" may power off the system even if the administrator is remotely logged in. Support for old Pentium Pro CPUs has been added to the Linux kernel.

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