zimbra: quick installation how to

1. setup /etc/hosts file to contain settings below
127.0.0.1 localhost.localdomain localhost
xxx.xxx.xxx.xxx hostname.domainname.extension

2. run installation script

# ./install.sh --platform-override

3. check port conflicts

sendmail and postfix should not be running

(source: http://coderoman.com/2010/04/install-and-setup-zimbra-in-centos/)