FirewallDNS
    Enterprise Firewalls

    How to Change DNS on SonicWall

    By [FILL IN], [FILL IN] · Last updated

    Configure SonicOS DNS and DHCP scopes.

    Before you start

    You need a FirewallDNS account (see pricing). Sign in to your dashboard, register your public IP address and copy your DNS server addresses. Replace <FIREWALLDNS-PRIMARY> and <FIREWALLDNS-SECONDARY> below with them.

    Step by step

    1. Network > DNS (SonicOS 7: Network > DNS > Settings).
    2. Select "Specify DNS Servers Manually" and enter <FIREWALLDNS-PRIMARY> and <FIREWALLDNS-SECONDARY>.
    3. Network > DHCP Server: edit each scope, open the DNS/WINS tab and choose "Specify Manually" with the FirewallDNS addresses, or "Inherit DNS settings dynamically".
    4. Accept.

    Verify it works

    1. Renew DHCP on a client (Windows: ipconfig /renew, macOS: reconnect Wi-Fi).
    2. Run nslookup example.com and check which server answered.
    3. Open the live log in your dashboard. New lookups should appear within seconds.

    Learn more

    Not protected yet?

    FirewallDNS costs $2.90 per device per month.