topic Custom URL Category override wildcard matches with more specifics? in General Topics

Custom URL Category override wildcard matches with more specifics?

Adrian_Jensen — Fri, 19 Nov 2021 00:32:29 GMT

Is there a way, within the URL Categories, to override wildcarded domain blocks in one category with more specific allows in another category? E.g. we have created custom URL categories for company allowed and blocked domains. I have a wildcarded domain that was put in a custom block category do to Infosec policies. Now I need to add that specific URL path to the allowed list, while continuing to block the rest of the domain.

Custom Objects->URL Categories->

URL-Allow:

server3.example.com/

URL-Block:

*.example.com/

example.com/

Security Profiles->URL Filtering

Category:

abortion - block block

abused-drugs - block block

adult - block block

...

URL-Allow - allow allow

URL-Block - block block

When going to https://server3.example.com/video the connection gets blocked by the URL-Block list, even though the more specific URL match exists in the URL-Allow list. Other than putting the URL in the URL Filtering->Overrides, is there a way to order precedence of URL Categories to match more specifics?

Re: Custom URL Category override wildcard matches with more specifics?

SutareMayur — Fri, 19 Nov 2021 06:01:21 GMT

Hi @Adrian_Jensen ,

This is how the Palo Alto URL filtering order works by design. The one that has more severe action will be chosen first. For more details, you can refer this KB Article.

Block- Most Severe

Allow-Least Severe

Hope it helps!

Re: Custom URL Category override wildcard matches with more specifics?

Adrian_Jensen — Fri, 19 Nov 2021 15:45:41 GMT

Ah, OK, thanks. That is what I suspected, but searching I couldn't find that KB when looking for URL Category order of operation. I think the most important part of that is the end of the KB that defines category priority in filtering.