Concerns over protecting our privacy while online are nothing new. Watch what you post online, we are told. Use a VPN, some say. TOR is unbreakable, say others. However, not many people tend to pay so much attention to DNS, a potentially massive and gaping great hole in your network that could easily be used against you.
Now, with the proper age of geo-blocking and streaming media well and truly upon us, more and more plucky punters are signing up for so-called smart DNS solutions. These services provide a great, hassle-free way to access content restricted to specific global regions by means of a complex web of transparent proxies. Some even provide VPN over DNS solutions for the really stubborn geo-blocked services.
What is not made particularly clear to those not familiar with the technology is that by amending your default DNS IP addresses provided to you by your ISP and adding in those from a smart DNS service, you are essentially directing all of your home network traffic over a bunch of proxy servers at a vast array of locations worldwide. These are servers you have no access to, so you cannot see how they are configured and more importantly if anything is being logged, or worse, intercepted due to the potential for so-called man in the middle attacks.