So I wanted to share this cool network wide adblocker. I have about 12 devices on my home network and I stumbled upon a problem recently when I got my 4k android TV with youtube, so many ads like 10 of them in a 1 hour video. So i searched and I found this
https://pi-hole.net/
A cool DNS server that runs on your R-pi and acts as a network wide adblocker. Imagine how much traffic you would save for all the devices on your network from blocking those pesky ads. Also you can whitelist and blacklist any domain you want. So you set this up and set it as the DNS in your router and it will work on all devices without manual config.
It also has a web interface.