I missed the first day of Justin's session, but on the 2nd/3rd day he referenced how his client sites never see the live internet until after the client has approved them on his laptop. What tool(s) is he using to develop sites on his local machine?
Thanks in advance!
wamp for windows http://www.wampserver.com/en/
Mamp for Mac http://www.mamp.info/en/index.html