Basically, what this howto is intended to do is to teach you how to get hamachi to run as a service.

Why would you want to run Hamachi? Once installed on your CentOS 4.5/5.X system and installed on a workstation (perhaps a laptop) you can access your server remotely via VPN for http or ssh administrative tasks. You can also use the private network to connect softphones and even set up DUNDi trunking over this VPN.