DNS proxy sharepoint domain issue when cache enabled

[Chris.Ka]

Hi there, i have some issues with my firewall when using dns-proxy with enabled cache. I cannot resolve sharepoint domains e.g. bitmix.sharepoint.com, but when I disable the cacheoption everything works fine.
Does someone have any suggestion how I could solve this?
I'm using PanOS 10.0.2

[BPry · Accepted solution]

@Chris.Ka,

Open a TAC case and ask them to replicate the issue. Sounds you you've possibly found a PAN-OS 10 bug. 

FYI,

Unless you need to run PAN-OS 10 due a feature set, I wouldn't recommend running it yet on production gear. I'd stick with PAN-OS 9.1 for anything production related. 

[kevin_thys]

I do notice the same issue. Did they found the root cause? If not I would also open a ticket to help them finding the roort cause.

[jmretting]

Also "dns cache" should be applied at the "proxy rule" level, not the parent layer.

[TerryStevens]

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@Chris.Ka wrote:

Hi there, i have some issues with my firewall when using dns-proxy with enabled cache. I cannot resolve sharepoint domains e.g. bitmix.sharepoint.com, but when I disable the cacheoption everything works fine.
Does someone have any suggestion how I could solve this? mybizaccount
I'm using PanOS 10.0.2

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I think I am also facing this issue. but Thanks for the information.