Enterprise Firewalls

    How to Change DNS on WatchGuard Firebox

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

    Set network DNS in Fireware Web UI or Policy Manager.

    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 > Interfaces > DNS/WINS.
    2. Add <FIREWALLDNS-PRIMARY> and <FIREWALLDNS-SECONDARY> as DNS servers.
    3. Edit the trusted interface DHCP settings and under DNS/WINS servers choose the FirewallDNS addresses.
    4. Save and enable a DNS-proxy or packet-filter policy that only allows DNS to FirewallDNS.

    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.