IP address Stories July 13, 2015

Internet’s new addressing system now mainstream, says Apple – prioritized in iOS 9 & OS X 10.11 betas

With the Internet running out of standard 32-bit IP addresses (known as IPv4), the switch to IPv6 – which offers 128-bit addresses – has been quietly underway for some time. Apple says this work has now progressed sufficiently for IPv6 to be considered mainstream, and it is prioritizing the use of the new addressing system in the public betas of both iOS 9 and OS X 10.11.

What both operating systems previously did was to try both old and new addressing systems and use whichever responded fastest. Both platforms now prefer IPv6 even if it is slightly slower, explained Apple CoreOS Networking Engineer David Schinazi in an Internet Engineering Task Force post.

If the first reply we get is A and we’re expecting a AAAA, we start a 25ms timer – If the timer fires, we send out the v4 SYN – If we get the AAAA during that 25ms window, we move on to address selection

In other words, IPv6 is used if it’s up to 25ms slower to respond than IPv4. Based on testing to date, says Schinazi, that means both platforms will be using IPv6 addresses around 99% of the time.


IP address Stories January 9, 2015

OS X Yosemite Mail

Apple’s Mac operating system is generally considered to be secure, but German security researchers have discovered what appears to be an oversight in how OS X 10.10 Yosemite’s overhauled search feature, Spotlight, handles remote content loading in messages through the default Mail app.

As Ars Technica reports, Spotlight search on OS X Yosemite appears to be overriding Mail’s security feature that prevents content stored on remote servers like images from being loaded which spammers can use to track personal information including IP address and more. expand full story

IP address Stories March 12, 2014

Apple’s online services going down intermittently, DNS problem/hack likely culprit (Update: Mostly back)

Update: The bad DNS entries appear to almost completely be purged and it appears that Apple services are working correctly. 

[tweet https://twitter.com/RaceJohnson/status/443882675011469312 align=’center’]

Apple’s website and online stores are experiencing issues for many users, according to various tips and reports we’ve received across Twitter. Apple.com, iTunes, the App Store, and some other web services (but not all) are all reporting that they are unavailable.

Some services (like iMessage and Game Center) seem to be unaffected at the moment.

Powered by WordPress VIP