June 2005
Intermediate to advanced
502 pages
21h 48m
English
Content preview from Switching to VoIP
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Compiling and Installing Asterisk
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Finally, you’ll need to adjust the safe_asterisk script so that it uses the new user
account to launch Asterisk, rather than root. To do this, open /usr/sbin/safe_asterisk
in Pico or your favorite text editor, and add
su asterisk –c before each instance of an
asterisk command. Be sure to leave the commands unchanged, aside from prefixing
them with the
su command.
Once these steps are taken, Asterisk will have only as much power as you grant the
“asterisk” user. Would-be attackers may be able to crash Asterisk, but in so doing,
they won’t be able to gain access to root’s credentials.
Asterisk on Mac OS X
Besides Linux, Asterisk will run on some commercial Unixes, including the most
popular of those, Mac OS X. A binary (already-compiled) distribution is available
from http://www.macvoip.com. The configuration examples described earlier won’t
work on OS X, because it’s a totally different flavor of Unix than Red Hat Linux. If
you are looking for a good reference for learning the Mac’s flavor of Unix, try Mac
OS X Panther for Unix Geeks (O’Reilly).
As of this writing, drivers for legacy interface cards have not been ported to OS X,
but with IP phones, the Mac port is fully functional. Indeed, with Applescript, iCal,
and iTunes at every Mac user’s disposal, ...
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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.