Whoever is using OpenWRT this is a great script for blocking hosts <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;teffalump&#x2F;7227752" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;teffalump&#x2F;7227752</a>. I guess it could be modified to use this source.