how to configure wifi

[resinis]

I want to add something.

People always get confused when it comes to installing usb wifi adapters on the pi, not to mention the fact you have to setup a usb hub in most cases which make things cluttered.

A simple and more robust way to do it is use a router. I use this one- http://www.tp-link.com/en/products/details/?categoryid=241&model=TL-WR702N

All you do is setup the router itself as an access point or repeater. Once you do that, its a matter of simply plugging it into the pi via the ethernet port. No configuration on the pi, it just works, and no usb port taken up.