Varnish is a state-of-the-art, high-performance HTTP accelerator. It uses the advanced features in Linux 2.6, FreeBSD 6/7 and Solaris 10 to achieve its high performance. . Some of the features include: * A modern design * VCL - a very flexible configuration language * Load balancing with health checking of backends * Partial support for ESI - Edge Side Includes * URL rewriting * Graceful handling of "dead" backends
