Setup: Synology NAS

Introduction

The easiest way to set Quad9 on your entire network is via your router settings. If you'd prefer to set Quad9 on a single system, please follow the steps below to configure Synology NAS to use Quad9.

Screenshots and instructions graciously provided by https://mariushosting.com

Instructions

1. Go to Control Panel / Network / General.

2. Check “Manually configure DNS server”

3. Preferred DNS Server: 9.9.9.9

4. Alternative DNS Server: 149.112.112.112

5. Click "Apply".