Simple, native and efficient local advertising blocker. Compatible with OSX and Linux.

• You don't have to install any browser extensions or applications, you just use the tools of your operating system.
• You update the list of DNS to be blocked with a single stroke.
• Opensource.
• Just bash.

maza update 

sudo maza start 

sudo maza stop 

maza status 

• bash 4.0 or higher
• curl
• Only OSX users, gsed: brew install gnu-sed

Then you do this.

curl -o maza https://raw.githubusercontent.com/tanrax/maza-ad-blocking/master/maza && chmod +x maza && sudo mv maza /usr/local/bin

Optional but recommended, make a backup of your hosts file.

sudo cp /etc/hosts /etc/hosts.backup

sudo rm /usr/local/bin/maza && sudo rm -r ~/.maza

Unfortunately the hosts file does not support sub-domains (wildcards), which is necessary to correctly filter all DNS. You will need to install locally a server for that purpose, Maza supports the Dnsmasq format. Here's an example for OSX.

brew install dnsmasq

Edit the file.

/usr/local/etc/dnsmasq.conf

Add the following lines.

conf-file=(your user path)/.maza/dnsmasq.conf

Start DNSMASQ.

sudo brew services stop dnsmasq
sudo brew services start dnsmasq

Delete the list of OSX DNS servers and add the 3 addresses. The first one will be your local server, and the other 2 belong to OpenDNS, which you can use any other.

127.0.0.1
208.67.222.222
208.67.220.220

Refresh your DNS cache

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

Add in confiigure file: /usr/local/etc/dnsmasq.conf

no-resolv
server=208.67.222.222
server=208.67.220.220

If you want all your .localhost domains, for example, point to localhost add in confiigure file: /usr/local/etc/dnsmasq.conf

address=/.localhost/127.0.0.1

• Only compatible with Linux and OSX operating systems.
• Remember to make a backup copy of /etc/hosts in case of unforeseen circumstances, neither the project nor its author will be responsible for any possible repercussions derived from not carrying out this action.

https://news.ycombinator.com/item?id=22717650