macOS Archive

"Core Data is a powerful data-management framework introduced with Mac OS X v10.4 Tiger. When you take advantage of Core Data, it slashes the amount of custom code you need to write in order to manage application data. Opening, saving and undo management can all be handled by Core Data, freeing you to concentrate on creating unique features for your application. This article is meant to address a somewhat different aspect of the power of this technology: the rapid development capability that is enabled by Core Data, Xcode and Interface Builder."

BusinessWeek explores why the chance is right for Apple to license the Mac OS to 3rd party hardware vendors. "First, the caveats: there's as much chance that Apple will license the MacOS as there is that Steve Jobs will show up to his next keynote wearing a dress instead of the usual attire. Secondly, he's probably right not to change course, because there's plenty of evidence that Apple's proprietary approach is the way to go to win the huge consumer electronics and digital media markets that are now opening up. But humor me anyway, because it's actually an interesting time to consider the question."

In Mac OS X, the root account is disabled by default. The first user account created is added to the admin group and that user can use the sudo command to execute other commands as root. The conventional wisdom is that sudo is the most secure way to run root commands, but a closer look reveals a picture that is not so clear.

Apple released another version of the security patch it distributed on March 13 to users of its OS X operating system software, in order to address a problem reported with the update. The company said it distributed the new patch, dubbed Update 2006-002 v1.1, in order to fix an issue with Apple's Safari Web browser that some users observed after installing its 2006-002 security update. According to a post on the company's Web site, the previous update had caused some Safari users to have problems launching the browser.

Here are the results of the challenge launched by the Unversity of Wisconsin to test OS X against hacking. "The response has been very strong; traffic to the host spiked at over 30 Mbps. Most of the traffic, aside from casual web visitors, was web exploit scripts, ssh dictionary attacks, and scanning tools such as Nessus. The machine was under intermittent DoS attacks. During the two brief periods of denial of service, the host remained up. The test machine was a Mac mini (PowerPC) running Mac OS X 10.4.5 with Security Update 2006-001, had two local accounts, and had ssh and http open with their default configurations. There were no successful access attempts during the 38 hour duration of the test period."

"In response to the woefully misleading ZDnet article, 'Mac OS X hacked under 30 minutes', the academic Mac OS X Security Challenge has been launched. The ZDnet article, and almost all of the coverage of it, failed to mention a very critical point: anyone who wished it was given a local account on the machine (which could be accessed via ssh). The challenge is as follows: simply alter the web page on this machine, test.doit.wisc.edu. The machine is a Mac mini (PowerPC) running Mac OS X 10.4.5 with Security Update 2006-001, has two local accounts, and has ssh and http open - a lot more than most Mac OS X machines will ever have open."