Thanks for the useful link.
Does it mean that on PAN OS 8.1 we have limited signatures when i check on antispyware it shows 7650?
On PAN OS 9.0 using DNS license how many we have in cloud any idea?
Currently if we are using application as DNS and service as app-default will this protect us with dns tunneling on PAN OS 8.1?
DNS security doesn't use signatures on the device. It is a cloud service, every DNS query is sent to PA cloud to be checked.
To use it you need the license and PAN-OS 9.0.
DNS with app default doesnt protect you from DNS tunneling because the DNS queries used for it are compatible with the protocol.
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