An architectural diagram of a secure DNS service, represented by a green shield. The service utilizes upstream DNS providers like Cloudflare, Google, and Quad9, is hosted on Oracle Cloud servers, and provides a secure connection to the internet.

Part 3: A High-Availability DNS Network with AdGuard Home

Learn to build a high-availability, ad-blocking DNS network with AdGuard Home. This step-by-step guide covers deploying on a homelab server, a free Oracle Cloud VM, and using Docker macvlan for ultimate redundancy.

A security shield with the AWS logo at the center, visually blocking unwanted internet traffic like ads (shopping cart icon) and trackers (browser window icon). This represents a cloud-based ad-blocking DNS filter.

How I Built My Own Ad-Blocking DNS Server in the Cloud (Updated AWS Edition!)

Enjoy a faster, ad-free internet everywhere. This 2025 guide details how to build a free, private DNS server with AdGuard Home on an AWS EC2 instance, complete with SSL encryption and automated renewal.