How to connect with host PostgreSQL from vagrant virtualbox machine

Question

I have a VirtualBox machine running Ubuntu 12.04 in a Mac OS X host machine. In my host machine (Mac OS X), I have PostgreSQL installed. I would like to connect to this Post

Answer 1

Easy way - simply use this "magic" IP from inside of vagrant without any additional configurations:

10.0.2.2

Don't know if it's always static, though for me works and it's very convenient - I can use laptop at home, from office - having assigned different IPs to me by routers, but my VMs know the "trusty name" of their master