Either way I&#x27;m not personally comfortable with this method since I often run servers on my personal computers for development. So whether it&#x27;s 127.0.0.1 or 0.0.0.0 the request will still reach my system and possibly be handled by any port depending on who makes the request.<p>I would much rather have a browser plugin for this.<p>Those servers could be anything from MySQL, redis to any web app.<p>I get that the hosts-method is meant to affect all apps but that&#x27;s not a big problem for me running Mac OS and Fedora.<p>Last time I had to block ads this way was when Opera had them embedded and it was much less memory hungry than Phoenix on my 256M RAM laptop. Back then I blocked them in ipfw instead.