topic Re: Clarity with wildcards used for custom objects in General Topics

Clarity with wildcards used for custom objects

dgagnon — Wed, 26 Jan 2022 19:46:07 GMT

I'm trying to have a clear understanding of wild cards and ending tokens when using them for custom URL categories. What's the difference in behavior when using *.site.com/ versus site.com/ ??? The pop-up doesn't seem to mention wild cards in the scenario.

"if you want to allow xyz.com and enter the domain as 'xyz.com,' you will allow xyz.com and URLs such as xyz.com.random.com. However, if you enter the domain as 'xyz.com/,' you will only allow xyz.com."

Some of the threads here haven't been clear on the differences.

Re: Clarity with wildcards used for custom objects

kiwi — Thu, 27 Jan 2022 10:21:17 GMT

Hi @dgagnon ,

Does this KB answer your question ?

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA14u000000oM79CAE&lang=en_US%E2%80%A9

Cheers,

-Kiwi.

Re: Clarity with wildcards used for custom objects

dgagnon — Thu, 27 Jan 2022 14:53:24 GMT

Hi @kiwi

That does help to provide some additional context to the text within the pop-up menu. The challenge is trying to determine if there are inaccuracies in the description. For example: the pop-up box says "if you enter the domain as xyz.com/, you will only allow xyz.com." and the link you found says "google.com/ - will match only google.com" on line 8. This lines up with the example provided from the pop-up.

However, on line 5 from the link it says: " *.google.com/ - will match blog1.blog2.google.com but will not match google.com" This is where I'm a little confused as I'm struggling to understand why the line 5 example would only match a domain name with sub-domains and not the domain AND any other sub-domains. I'm inheriting a poorly managed firewall and if line 5 is correct, if I want to block badsite.com and any other subdomains on that site (download.badsite.com or chat.badsite.com) I will need to have two (2) entries in the filter: badsite.com/ and *.badsite.com/. I want to ensure I'm applying these rules properly and not inadvertently permitting access to site we're trying to block or preventing access to sites we need to allow.

Re: Clarity with wildcards used for custom objects

kiwi — Thu, 27 Jan 2022 15:22:12 GMT

Hi @dgagnon ,

Correct, if you want to block badsite.com and any other subdomains on that site you will have two (2) entries in the filter:

badsite.com/

*.badsite.com/

Cheers,

-Kiwi