Switching to VoIP

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Chapter 3: Linux as a PBX

You’ll see something like this:

424 std S+ 0:00.00 asterisk

The first bit of information is the PID, or process ID. Now, use that PID to kill the

Asterisk server process:

# kill -9 425

The -9 is the same as using now at the Asterisk CLI. Any outstanding Asterisk

threads, including calls in progress, filesystem requests such as logging, and adminis-

trative instructions, are immediately and abruptly ended so the server process can

terminate. This technique is a last-ditch effort that should be avoided if possible.

Configuring for Automatic Startup at Boot Time

In Red Hat Linux, a tree of shell script files dictates the startup procedure for the

operating system. After the kernel loads, user commands are executed in the

sequence spelled out by the scripts located in /etc/rc.d. There are two accepted meth-

ods for adding Asterisk to the startup sequence: one that uses modifications to rc.

local (the quick and dirty method), and another that involves a script wholly dedi-

cated to Asterisk.

Using rc.local to launch Asterisk

To make Asterisk start automatically at boot time, modify one of the boot-time

scripts, rc.local, to launch Asterisk in server mode. While you may find the second

boot-time method more to your liking, this one shows how to launch Asterisk short ...