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 HTTP Transparent and HTTP Compress combination mode problem that produces some inconsistent HTTP requests has been fixed. Synflood rules are less aggressive, so overloaded Web browsing works properly without faulty rejects. Textual output has been formatted to comply with VT100 terminals. The power-off button on SPC appliances works now and shuts down the system properly. The LCD displaying on SPC appliances works properly. The "conf diff" command has been optimised. A "Show Configuration" option has been added to the Web GUI Administration.

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