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Last update: 2021-10-21

Configure DNS servers

DNS settings are in: Network > DNS.

There are three ways to assign DNS servers to Sophos Firewall;

  • From your DHCP server.
  • From PPPoE interface settings sent by your internet provider.
  • Manually, by assigning static server entries.

The first two settings just require you to select the appropriate radio button.

Assigning DNS servers automatically

To assign DNS servers manually, do as follows:

  1. Go to Network > DNS.
  2. Select Static DNS.

    Configure static DNS servers

  3. In DNS 1, enter the IP address of the server you wish to use as your primary DNS server.

  4. Optionally, in DNS 2, enter the IP address of a secondary DNS server.
  5. Optionally, in DNS 3, enter the IP address of a tertiary DNS server.

    DNS servers are queried in the listed order until a matching host record is found.

  6. Click Apply.

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