It is entirely possible to override this on the device, but for the most part people won't do this. With that lease, it also provides your device with the DNS nameservers that it should be using. Whenever your device connects to your home network (or any network, really) your router's DHCP service will provide your device with a lease on an IP address. Every request for a website requires this look-up.īut how do your devices know which DNS servers to call for each request? Well, that's generally DHCP's job. In order to determine this IP address, it makes a DNS ( domain name system) query to a DNS nameserver which will respond with a DNS record for that domain, containing its IP address (and usually some other information).
Whenever you navigate to a website using its domain name (, for example), your device needs to know which IP address that domain refers to so it can load its content. To understand how AdGuard Home works, you should first understand how your devices make requests out of your network to the internet. If you know how DNS works, you may skip this part, but as a quick refresher. Its primary goal is to provide your network with a mechanism to actively block certain requests that websites you visit make – in this case, requests for adverts, malware, or various other malicious things. In short, AdGuard Home is much like your run-of-the-mill browser ad blocker, but rather than being a plug-in on your favourite web browser, AdGuard Home is a fully-fledged server application which runs on a separate machine somewhere on your network (or perhaps even on a VPS you own). It's a self-hosted variant of AdGuard's own subscription DNS service. However, after having spotted some discussion on our Discord server-and coincidentally during our rebooted podcast-about a new player on the field, I decided to give AdGuard Home a go. Like most people (I assume), I stuck to browser plugins like AdBlock Plus and uBlock Origin. While many members of the LinuxServer.io team currently use PiHole for their ad-blocking needs, I was relatively late to the game having never used a network-level DNS blocker.
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