[d4ggm4sk]

https://www.raspberrypi.org/

works great for a dns server.

does it use linux? if so, what distro does it use? or does it have its own distro?

Raspbian “Wheezy”
https://www.raspbian.org/RaspbianFAQ

do you use it for programming? not hacking I guess??

personally I think its a great invention I would just never use that thing,
its too much design and too less functionality. I cant either vouch for "Rxsperry wheezy" being the heaviest distro out there.