If you’re one of the many, many people that have experienced some strange, weird and downright odd goings on with Macs, iOS devices and Apple TVs as far as networking goes, then you’re going to be pleased to read that Apple should have a fix ready for you. The bad news? You’re going to have to wait for iOS 9, OS X 10.10.4 and OS X 10.11 to release first.
The crux of the problem, which saw Macs and other devices effectively lose access to the Internet and often each other thanks to an issue with the way they handle DNS requests, appears to have been related to something called discoveryd. Without wanting to get too technical, discoveryd first put in an appearance when OS X Yosemite went live and has since been causing havoc almost everywhere it went.
Supposedly created to replace the incumbent mDNSResponder in order to support new features that Apple debuted as part of Yosemite and iOS 8, discoveryd has now been unceremoniously dumped in favour for the aforementioned mDNSResponder – with the currently beta released OS X 10.10.4 the first update to include the rejig of DNS services.
The change in the way the Mac handles DNS should also have a knock on effect on anything else connected to the same network too – discoveryd was so bad that it also managed to cause chaos even on hardware that it didn’t know existed.
With OS X 10.10.4 and the newly released iOS 9 beta 1, OS X 10.11 featuring mDNSResponder rather than discoveryd the Internet is awash with people hoping and praying that the long national nightmare of DNS failures and other network shenanigans is put to an end. Discoveryd has caused its fair share of problems over the last twelve months, and even with Apple’s attempts at patching it failing one after the other, we’re sure the company had a good reason to go down the discoveryd route in the first place.
We’re just glad it decided to turn back before it was too late.
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