Summary
Most networks of more than a handful of
computers can benefit from the presence of a local DNS server. Such a server
may serve both external clients who want to find the IP addresses associated
with server names within your domain, and internal clients who want to find the
IP addresses of both local and remote systems. In either case, you must
configure a basic set of options, including general options, a specification of
root name servers, and configuration for any zones for which you want the
server to be authoritative. If you want the server to deliver the names of
computers within your domain, you need to set this up within zone files for the
server. These files allow you to link hostnames and IP addresses, and tie specific
computers to particular functions within a zone, such as mail servers for a
domain.