Varnish是一款高性能的开源HTTP加速器，挪威最大的在线报纸 Verdens Gang ( http://www.vg.no ) 使用3台Varnish代替了原来的12台 squid ，性能居然比以前更好。

下载  Varnish 2.1.4

该版本改进内容：

• A bug in the binary heap layout caused inflated object counts, this has been fixed.
• Much more comprehensive documentation.
• A DNS director that uses DNS lookups for choosing which backend to route requests to has been added.
• The client director now uses the variable client.identity for choosing which backend to send a given request to.
• String representation of now, making it easier to add Expires headers
• Portability fixes for Solaris.
• Various bug fixes.