MAC OS Decryption Issues

[CarmenGerardi]

Hello All,

I was just curious if anyone has encountered issues with Apple Mac devices and SSL decryption? We have users that are unable to perform an Internet Recovery over the network, but when they are off the network it works for them. This has only started since implenting SSL Decryption. We have excluded apple.com from SSL inspection but the issue still persists. Just curious if anyone has any ideas on other things to exclude?

Thank you!

[Raido_Rattameister]

No experience but in addition to apple.com also exclude *.apple.com

If it still fails then exclude decryption for specific IP that is performing Internet Recovery and check logs where it connected to.

[CarmenGerardi]

Thank you for responding. We do have apple.comand *.apple.com but still not luck. I checked the logs and do not see any decryption errors. Saw a couple tcp-rst-from-client's in there but nothing really stands out. 

[Mick_Ball]

have you tried adding *.apple.com to your no decrypt policy.

i do not use it but am aware that it uses :-

osrecovery.apple.com or oscdn.apple.com 

so... I would have

apple.com and *.apple.com in your no-decrypt policy

[Mick_Ball]

oops... sorry late post...

[Raido_Rattameister]

Then I suggest to exclude this machine from decryption.

Run recovery.

Run report from Monitor > PDF Reports > User Activity Report to get whole connection pattern.