FortiGate DNS FortiOS 5.6

DNS servers resolve domain names (For example www.alastair.co.uk) to IP address. The FortiGate uses DNS servers to resolve names to IP address.

The settings for this is under Network > DNS

By default using Fortinet’s FortiGuard severs are select.

It is possible to specify using different DNS server, click on Specify and enter in primary / secondary DNS servers

These settings can be changed in cli

config system dns
set primary {ipv4 address} IP address of primary DNS server, default is FortiGuard server 208.81.112.53
set secondary {ipv4 address} IP address of secondary DNS server, default is FortiGuard serverĀ  208.81.112.52
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