If you have a proxy, virtual private network (VPN), or remote desktop program (RDP) running on your device, you won't pass the geolocation checks necessary to use DraftKings. Examples of RDPs are Bomgar, TeamViewer, Remote Desktop Viewer, and Zoom.
With that warning out of the way, you can access your FanDuel account from virtually anywhere using a VPN. VPNs offer encryption and the ability to appear as though you're accessing the internet from a different location. This allows you to log in as if you were at home and place bets even while on vacation.