| Until you configure your name (DNS) server, we would like to temporarily turn it off. In almost all cases, you should only need your own name server if you own your own domain and you want this _particular_ machine to answer DNS queries.
This is especially important as there have been dangerous remote-root vulnerabilities in several recent versions of BIND. The security principle of Minimalism applies here: minimize the number of possible attack points to be least vulnerable to attack.
Even if you plan on setting up a name server on this machine, you should deactivate it for now until you get the configuration files setup. You can reactivate it then by typing, as root: /sbin/chkconfig named on |