Headless Virtualbox on OSX - Jon Atkinson

"When I'm developing, I try to continuously deploy to a realistic environment as often as possible. This means a Debian server running a stack as close to production as I can get. Of course, I don't deploy to the actual production servers (a lesson I've learnt many times over), so I virtualise a Debian box and clone package set from the production server. Combined with bridged networking and a quick hosts file change, and I've got a production-equivalent server always available at server.local."