System information

Some of the most popular Asterisk-based projects include:
AsteriskNOW http://www.asterisk.org/asterisknow
Trixbox http://www.trixbox.org
Elastix http://www.elastix.org
PBX in a Flash http://www.pbxinaflash.net
We recommend that you check them out.
‡
Installation Cheat Sheet
If you just want the nitty-gritty on how to get Asterisk up and running quickly, perform
the following at the shell prompt. We encourage you to read through the entire chapter
at least once, though, in order to better understand the full process.
§
The instructions provided here assume you’ve already installed either CentOS or
Ubuntu using the steps outlined in “Distribution Installation” on page 35.
Remember that Ubuntu requires commands to be prefixed with sudo.
1. Perform a system update and reboot:
CentOS yum update -y && reboot
CentOS 64-bit yum remove *.i386 && yum update -y && reboot
Ubuntu sudo apt-get update && sudo apt-get upgrade && sudo reboot
2. Synchronize time and install the NTP (Network Time Protocol) daemon:
CentOS yum install -y ntp && ntpdate pool.ntp.org && chkconfig ntpd \
on && service ntpd start
CentOS 64-bit yum install -y ntp && ntpdate pool.ntp.org && chkconfig ntpd \
on && service ntpd start
Ubuntu sudo apt-get install ntp
‡ After you read our book, of course.
§ Once you have experience with several Asterisk installations, you’ll agree that it’s a quick and painless process.
Nevertheless, this chapter may make the process look complex. This is simply because we have an obligation
to ensure you are provided with all the information you need to accomplish a successful install.
Installation Cheat Sheet | 31