how can add more dns ip add on fortigate

[siberprime]

Fortigate only allow to  enter 2 ip adress, but I need 4 IP address , how can add  4 ip  address 

[Dhruvin_patel]

Two IPs can be assigned for system DNS. It is not possible to add more than 2 DNS IPs.

[ssteo]

@siberprime FortiOS only allow add two DNS server IP address.

[AEK]

Is there any reason why you need 4?

[hbac]

Hi @siberprime, 

It is possible to add 2 more as alternatives DNS servers in the CLI. Please refer to https://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-alt-primary-alt-secondary-DNS-se...

Regards, 

[Debbie_FTNT]

Please note (as mentioned in the KB) that the alternative servers are ONLY queried if the two other DNS servers are unable to resolve the hostname and return this response; they are NOT queried in case of a timeout.