Can't Block Youtube on PAN 7.1.0


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L2 Linker

Can't Block Youtube on PAN 7.1.0

Hi Team,


I user PAN OS 7.1.0 and now i CAN'T block youtube although i try using both application and url to block.


1, Block by Application


I created a rule to block YouTube-base



I still view video on youtube normal 


In log traffic, i see Palo Alto Blocked Youtube-base application



But i think, traffic from youtube go through SSL and googbase app



 2. I user URL Cateogory


I created a URL for Youtube



And after i apply a policy block youtube by using url, 


On firefox, youtube is blocked





But on Chrome, Youtube still running




L7 Applicator

check your traffic log if you're seeing "quic" application, this is a sort of ssl over udp protocol google has implemented in chrome that can bypass your regular policy. you may want to disable quic in your browsers or block it altogether on the firewall

Tom Piens -
New to PAN-OS or getting ready to take the PCNSE? check out
L3 Networker


Please check the above document  if you do not want to make a change on the firewall if it works you can deny the same on the firewall.


type the below string  on chrome



ctrl+f  search for quic and disable it, test the changes and  let us know.


Thank you 


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