Whilst this worked I was never completely happy with this approach as I never want to modify system files as you can never be sure.Īfter a little work and a few updates to the Pi-Hole docker image I feel this is now possible without modification. When I first wrote about installing Pi-Hole inside Docker on my Synology NAS I came up with a solution that required a little modification to the standard DSM (see: Freeing up port 80 on Synology DSM). Update This post was updated in January 2018 and details how to get the Debian version of pihole-docker running as the Alpine version is no longer supported. There are already plenty of really good guides available for this so i’m not going to make another one, instead i’m going to point you to this guide which i think sums up the steps required very succinctly.Update 2 I’ve created a new post which shows a different method, the one that I currently use. Pi-hole is really easy to setup on a Synology NAS using Docker, and i would highly recommend you check it out for yourself. It even protects devices like your TV, which otherwise wouldn’t have any defence against ads. The most significant benefit of using Pi-hole is that it protects all your connected devices at the network level, and negates the need to have ad-blockers installed on each individual device. Once setup with some ad-lists, you simply redirect all DNS queries on your home router to the internal IP address of the Pi-hole, Pi-hole then passes any DNS queries it receives to the upstream DNS servers which you specify (Adguard DNS, Cloudflare, QUAD9, Google etc), and then filters the response against the specified ad-lists. You specify which domains to block via lists, which are freely available and generally fall into specific categories such as tracking, malware, ads etc.

Pi-hole is a DNS sinkhole, it blocks adverts and tracking sites at a domain level, and works across your entire network to protect all your devices. This is by far one of the most useful things i have installed on my Synology.

Adguard home synology