Technical Tip: How to adjust the rate count for DNS.TXT.Records.Tunneling signature in Application Control

Launch the CLI window in the GUI or SSH into FortiGate:

config application list

(list) # edit DnsTunneling
new entry 'DnsTunneling' added

DnsTunneling) # config entries

(entries) # edit 1
new entry '1' added

(1) # set application 39624 <----- The application number is DNS.TXT.Records.Tunneling signature.

(1) # set action block

(1) # set log enable

(1) # set rate-count
rate-count Enter an integer value from <0> to <65535>.

(1) # set rate-count 80 -----> rate count adjusted to 80 requests with 1 second

next
end

Once done, the GUI Application control configuration is shown in GUI: