03-14-2013 12:55 PM
Hi,
I'm trying to figure out if the URL Filtering detects domians in DNS requests and can take actions based on a domain in a DNS request (ie. blocking). I would like to move some of my DNS sinkhole activity to the Palo Alto 5020, but i'm unsure if this is a viable option with URL filtering.
Thanks in advance!
-sc
03-14-2013 01:58 PM
Hi...URL Filtering is applied to web browsing traffic and not to DNS requests. In PAN-OS 5.x, DNS botnet signatures are supported as part of the threat prevention license. Thanks.
03-14-2013 01:58 PM
Hi...URL Filtering is applied to web browsing traffic and not to DNS requests. In PAN-OS 5.x, DNS botnet signatures are supported as part of the threat prevention license. Thanks.
03-14-2013 02:52 PM
Thanks Rmonvon,
Do you know if DNS sinkholing can be implemented on the Palos? Thanks!
-sc
03-15-2013 12:47 AM
As already mentioned the URL filtering is based on the the contents of the actual http request.
However in PA there is also a DNS-proxy feature which I think might be able to be used to sinkhole various domains, see some info in
The admin guide has a better description regarding settings of the dns-proxy feature.
In my opinion the best option is to use your own dns-servers (place in DMZ) and perform the sinkholing in them.
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