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I've installed our Root CA cert in the "System" keychain, and have it marked as trusted. I can successfully decrypt web traffic from a MAC running Mojave. No problems there.
The problem comes in when I try updating the OSX or even check for updates from the CLI.
When I run "softwareupdate -l" in terminal, In the logs on the firewall it appears to be coming through as web browsing app, and getting decrypted.
I ran a packet capture, and it shows the client is resetting the connection after succesffuly going out to swscan.apple.com, which is not whitelisted for decryption exclusions. Has anyone run into issues when trying to decrypt on OSX with a trusted root cert, while trying to update the operating system itself?
Guessing adding these domains to decryption exclusion is going to fix this?
Solved! Go to Solution.
Whitelist the following:
That should take care of the software updates and allow your clients to actually update successfully.
Correct. Exclude those domains from decryption and your clients should be able to check for and download updates again.
Whitelist the following:
That should take care of the software updates and allow your clients to actually update successfully.
Perfect! As always, an excellent reply! Thank you. When you say whitelist- you mean exclude decryption right?
Correct. Exclude those domains from decryption and your clients should be able to check for and download updates again.
Hi,BPry
>Whitelist the following:
>....
Andrew
That is the actual list yes. You can exclude these domains in either method, personally I like doing it in the decryption rulebase via a custom No-Decrypt URL category.
Thank you for reply
I prefer "No-Decrypt URL category" too.
Can i summarize your list to:
*.apple.com
*.cdn-apple.com
It will be a less strict list.
Is such version possible?
Andrew
You could. As you said, it would be less restrictive and potentially allow additional traffic that you otherwise could have decrypted and gained insight into.
Thank you, I understand.
Best wishes,
Andrew
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