TrixBox is available in a couple of formats. Firstly, there is the ISO image that can be burned to a CD and then installed. Secondly, we can download and install a
tar.gz file to an existing CentOS system. The former method is by far the simplest and is what we will cover here. The ISO image can be downloaded by going to http://www.trixbox.org and clicking on the download link, or by going to the SourceForge project page directly at http://sourceforge.net/project/showfiles.php?group_id=123387&package_id=192286&release_id=426959.
We should download the latest version (avoiding any files marked as beta or alpha) of the ISO image to our computer and burn it to a blank CD with our favourite CD-burning software. The ISO is about 510 Mb in size, and may grow in future versions as well. We should ensure we have adequate space on our hard drive to download the file.