BIND Type Samples

Abstract

This chapter presents sample BIND configurations and accompanying descriptions for each of the DNS types described in Chapter 4. But before jumping into these configurations, let’s take a moment to quickly review these types:

• Zone master: A name server that responds authoritatively for the zone, reads the zone file from a local file system, and is capable of transferring the zone file to one or more slave servers.

• Zone slave: A name server that responds authoritatively for the zone, obtains its zone file by a zone transfer from a zone master, and is capable of transferring the zone file to one or more slave servers.

• Resolver (or caching name server): A name server that provides recursive query support to clients and saves the results in a cache.

• Forwarding server: A name server that passes all queries for which it has no cached results to a resolver.

• Stealth or split server: A name server configuration typically used in perimeter defense, which separates the services provided to external and internal users

• Authoritative-only server: A name server that only provides responses for zones for which it is either a zone master or a zone slave; it does not support recursive queries.