URL allow list for some of the subdomains

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URL allow list for some of the subdomains

L1 Bithead

Hi all


I want to limit the user to access the company's sharepoint only, but not other sharepoint from other tenant or even the sharepoint from personal account. Then I found the below KB (section 6) and show how to use allow list in the URL filtering profile to block *.sharepoint.com but allow company.sharepoint.com. But I cannot find the allow list section in PAN-OS 10.x, so anyone know how to configure the URL filtering profile to allow some subdomains (say companyA.sharepoint.com and companyA-myfiles.sharepoint.com) but not other sharepoint domain (*.sharepoint.com)




Best regards


Alex Tsang


L4 Transporter

@alextsa There is no specific allow/block lists as such. You create a custom URL categories in "Objects  > Custom Objects > URL Category". One for the custom URLs you like to block and one for allow. Then under your URL filtering profile, you assigned the required actions - block and alert respectively.

Note that block takes precedence over allow though, so a generic block *.sharepoint.com/ filter will block the company Sharepoint even though acme.sharepoint.com/ is in an allow URL category. 

@batd2  Thanks, and I have tried to create two custom category - one is *.sharepoint.com and one contain companyA.sharepoint.com and companyA-myfiles.sharepoint.com, then added them to a URL filtering profile with block action for *.sharepoint.com and allow for companyA.sharepoint.com. But the result is all subdomain belongs to sharepoint.com are block even companyA one.


Best regards

Which PANOS are you running? As said above, generic block takes precedence over specific allow. See https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClsmCAC .


The advise was to put your generic block in a block URL category, then in Objects -> Security Profiles -> URL Filtering add an allow in the Override tab for the specific URL. I recently upgraded from 8.1.x to a 9.1.x release and that entire tab seems to have disappeared... So I'm not quite sure how you would allow a more specific now...

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