If you own a Ubuntu and you want to unblock HBO Go outside USA on this device, you found the right website. Unblocking HBO Go on Ubuntu works with with SmartDNSProxy, Unlocator - but there are price and quality differences - here are the details:

SmartDNSProxySmartDNSProxy charges $4.90 per month or $34.90 per year. SmartDNSProxy supports unblocking on 28 devices like Boxee, Roku, XBox One, Wii U, iOS, Google TV, Mac OS X, PlayStation 4, Smart TV, Panasonic Smart TV and more than 134 Channels to unblock - like NBA League Pass, Simpsons World, yle Areena, CWTV, Food Network, Spike TV, Channel 4, Netflix - US, Fox Soccer 2 Go, Netflix-Canada, NBC, Starz, Demand 5, TNT Drama, Svt play, STV Player, Showtime Anytime, NFL Sunday Ticket, Travel Channel and lots more. You can pay with Tarjeta de crédito, PayPal. View Details & Offers

UnlocatorUnlocator charges $4.95 per month or $49.95 per year. Unlocator supports unblocking on 28 devices like Kindle Fire, Apple TV, Chromecast, Samsung Smart TV, Windows, Roku, XBox One, Android, Ubuntu, Mac OS X and more than 144 Channels to unblock - like Cartoon Network, NOW TV, Eurosport Player, Filmon, Wilmaa, NFL Sunday Ticket, Crunchyroll, V8 Super Cars, France4, Hulu Plus, TV Player, Ztele, Canal+ Sport Online, beIN Sports, Spotify, Pandora, FOX Sports, 5star, NFL Now, Cineman and lots more. You can pay with PayPal, Tarjeta de débito, Tarjeta de crédito. View Details & Offers