Configuring and Managing MPE/iX Internet Services (MPE/iX 6.5)

Chapter 8 119
DNS BIND/iX
Explanation of Terms
known as “primary” and “secondary”.
The rest of this section concerns itself with only “leaf” DNS servers,
that is. servers that only serve hosts. These servers have no domains
under it, only hosts.
There are four types of db or zone files used by a DNS server, each
identified in the server’s named.conf file:
• zone.DOMAIN — provides name-to-address mapping
• zone.ADDR — provides address-to-name mapping
• zone.LOCAL — a zone.ADDR file that provides loopback mapping
• zone.CACHE —azone.DOMAIN file that identifies root name servers;
also known as the “zone.hint” file.