Quinn (well, technically DTS, but it’s pretty clear that Quinn wrote it) just posted a major update to the “Daemons & Agents TechNote”. If you’re a Mac sysadmin, you owe it to yourself to at least read or attempt to read this TechNote to better understand the OS X startup process.
FWIW it has particular implications for OS X security. The recent hubbub about the trojaned iWork installer highlights one of the problems with OS X Leopard supporting both current (Launchd) and deprecated (Startupitems) startup mechanisms. Snow Leopard will apparently finally deprecate everything except Launchd – so finally there’ll only be a single startup mechanism on OS X that sysadmins need to exercise vigilance over.
See it here: Technical Note TN2083: Daemons and Agents
On a completely different note – if I ever get to know even 10% of what Quinn knows about code and programming, I think I’ll die a happy man. I don’t want to wax lyrical, and I know it’s kinda his job to know all that stuff, but damn…sometimes I do wonder if I should specialise more rather than trying to be a generalist on most things, and instead specialise in one or two areas. Food for thought…