Thursday, December 29, 2011

OS X hidden folders, extended attributes, flags, and file ACLs

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On lion the ~/Library directory is hidden by default in Finder. This doesn't bother me normally, since I rarely use Finder and it is vi...
Tuesday, December 20, 2011

Simple cocoa dialogs for commandline tools in OS X

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Got a commandline tool that needs to interact with a user? cocoaDialog is an app that can provide simple, good looking dialogs and can be ...
Sunday, December 18, 2011

NSA response to USB-borne malware

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The Washington Post has an interesting article on the NSA's response to a USB-based malware infection on the US secret network in Octob...
Wednesday, December 14, 2011

Ruby %x, system(), `backtick`, and puppet Facter::Util::Resolution.exec differences

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Below are three different ways of running a system command from ruby : irb(main):014:0> %x(echo "sdfsd") => "sdfsd\n...
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Friday, December 9, 2011

Convert group and user GeneratedUIDs to human-readable form on OS X

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When working with users and groups on OS X you frequently find that you need to lookup GUIDs to get their human-readable names. Here are a ...

Ruby Time and DateTime: parse a string, compute the difference, simple right?

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Time in ruby is a confusing maze of suckiness. The Ruby Time class doesn't include a method to convert a string into a Time object (l...
Wednesday, December 7, 2011

auditd on OS X

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Auditd gets a limited description in the Snow Leopard Security Config doc . I'm posting a quick summary here, and will update it as I l...