Setting Multiple DNS IPs in AdGuard Home DHCP

By default, the AdGuard Home Web UI allows you to set only one DNS server for your DHCP clients. If you have a secondary DNS (like a backup instance), you must add it manually via the configuration file.

Steps:

1. Open your configuration file (path may vary depending on your setup):

nano /data/adguard/AdGuardHome.yamlCode language: Bash (bash)

2. Find the “dhcp:” section and look for “options:“

3. Add DHCP Option 6 (DNS Servers) followed by your IP addresses separated by a comma:

dhcp:
  ...
  dhcpv4:
    options:
      - "6 ips 192.168.4.12,192.168.3.142"Code language: YAML (yaml)

Restart AdGuard Home to apply the changes.

Now, when your clients request an IP via DHCP, they will automatically receive both DNS server addresses for better redundancy.