I travel a lot and connect to public wifi hotspots all the time. What information will be given out if I use VPN within public wifi hotspots? Will the owners or intruders in the hotspot be able to detect the websites I go to (DNS lookups, Traffic sniffing)?
In other words, will using a VPN totally keep my browsing private and secure my traffic from being detected? Are there any gotchas I need to keep an eye out for?