February 2004
Intermediate to advanced
383 pages
11h 49m
English
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System Configuration
Although you can perform most
system configuration through the System Preferences program, the
scutil and defaults
commands let you poke around under the hood. You can get even further
under the hood with the nvram command (perhaps
further than most people would need or want to get).
scutil
Mac OS X stores network configuration
in a
database called the dynamic store. You
can get at this database using scutil, the
system configuration utility. Before you can do anything, you must
connect to the configuration daemon
(configd
) with the open
command (close the session with the close
command, and exit scutil with quit):
Chez-Jepstone:~ bjepson$sudo scutilPassword:********>open
List the contents (a collection of
keys) of the configuration database with the list
command. The following shows abbreviated output from this
command:
> list
subKey [0] = DirectoryService:PID
subKey [1] = Plugin:IPConfiguration
subKey [2] = Setup:
subKey [3] = Setup:/
subKey [4] = Setup:/Network/Global/IPv4
subKey [5] = Setup:/Network/HostNames
subKey [6] = Setup:/Network/Service/0
subKey [7] = Setup:/Network/Service/0/Ethernet
subKey [8] = Setup:/Network/Service/0/IPv4
subKey [9] = Setup:/Network/Service/0/IPv6
subKey [10] = Setup:/Network/Service/0/Interface
subKey [11] = Setup:/Network/Service/0/ProxiesYou can show the contents of a key with the show command. The contents of a key are stored as a dictionary (key/value pairs). For example, here are the default proxy settings for ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.