varnish: varnish (High-performance HTTP accelerator)
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varnish: Varnish Cache is a web application accelerator also known as a 
varnish: caching HTTP reverse proxy. You install it in front of any server 
varnish: that speaks HTTP and configure it to cache the contents. Varnish 
varnish: Cache is really, really fast. It typically speeds up delivery with a 
varnish: factor of 300 - 1000x, depending on your architecture. A high level 
varnish: overview of what Varnish does can be seen in the video attached to 
varnish: this web page.
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