Oracle Cloud

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.

Oct 8, 2025 10 min read