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macOS unable to open any non-Apple application

(twitter.com)
2603 points mattsolle | 4 comments | 12 Nov 20 21:00 UTC | HN request time: 0.772s | source
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modeless ◴[12 Nov 20 21:30 UTC] No.25075336[source]▶
You've got to be kidding me. When Apple's servers are down, all Macs worldwide start freezing randomly? My XCode is hanging during builds, is this why?

This code signing enforcement stuff has gone way too far. Heads should roll for this.

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p1necone ◴[12 Nov 20 21:49 UTC] No.25075549[source]▶
Wait what happens if you don't have an internet connection? Can Macs not be used offline any more, surely that's still a relatively common use case for a laptop even today in a lot of places?
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josephcsible ◴[12 Nov 20 22:07 UTC] No.25075778[source]▶
My understanding is that if you're offline, it skips this check and everything works fine. The reason this is a big deal is that the problem's on their end, so you're not offline, so it keeps trying and waiting instead of just letting you skip the check.
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berryg ◴[12 Nov 20 23:06 UTC] No.25076495[source]▶
I experienced this a couple of weeks ago. My wifi was up, but my internetprovider was down. My Macbook came to a halt. Nothing worked anymore. The whole machine was extremely slow. When the internetprovider came back up again, everything was fine again.
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kps ◴[13 Nov 20 01:42 UTC] No.25077853[source]▶
So you can't use a computer on an airgapped network? That seems counterproductive if the objective is security.
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1. floatingatoll ◴[13 Nov 20 01:44 UTC] No.25077877[source]▶
If your computer is actually airgapped and has no networking interfaces configured, you won't have this issue.

If your computer is able to resolve DNS for ocsp.apple.com but to connection-timeout all traffic, yes, you could possibly reproduce today's issue.

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2. kps ◴[13 Nov 20 03:16 UTC] No.25078423[source]▶
Airgapped network — an IP LAN not connected to the internet. These do exist, sometimes permanently for security reasons, and sometimes just where external connectivity sucks but you still want your laptop to talk to your NAS.
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3. justinclift ◴[13 Nov 20 05:39 UTC] No.25079265[source]▶
Agreed. These are really useful in various settings, but seem to be outside of most people's experience.
4. floatingatoll ◴[13 Nov 20 09:14 UTC] No.25080545[source]▶
The point stands: if you allow a host to resolve ocsp.apple.com to an unresponsive (timeout) address, it might break macOS the same as today — whether by air gap, by firewall, or who knows what else.