BIND (Berkeley Internet Name Domain) is an implementation of the DNS
(domain Name System) protocols. BIND includes a DNS server (named),
which resolves host names to IP addresses, and a resolver library
(routines for applications to use when interfacing with DNS). A DNS
server allows clients to name resources or objects and share the
information with other network machines. The named DNS server can be
used on workstations as a caching name server, but is generally only
needed on one machine for an entire network. Note that the
configuration files for making BIND act as a simple caching nameserver
are included in the caching-nameserver package.

Install the bind package if you need a DNS server for your network. If
you want bind to act a caching name server, you will also need to install
the caching-nameserver package.

Many BIND 8 features previously unimplemented in BIND 9, including
domain-specific forwarding, the \$GENERATE master file directive, and
the "blackhole", "dialup", and "sortlist" options Forwarding of dynamic
update requests; this is enabled by the "allow-update-forwarding" option
A new, simplified database interface and a number of sample drivers based
on it; see doc/dev/sdb for details
Support for building single-threaded servers for environments that do not
supply POSIX threads
New configuration options: "min-refresh-time", "max-refresh-time",
"min-retry-time", "max-retry-time", "additional-from-auth",
"additional-from-cache", "notify explicit"
Faster lookups, particularly in large zones.

Build Options:
--with sdb Build with database backends and DLZ support (enabled by default)
--with geoip Build with GeoIP support (disabled per default)