Novell NETWARE 6-DOCUMENTATION Manual page 1607

Start of Authority (SOA)—Indicates the start of authority for the zone.
The name server must contain one SOA record specifying its zone of
authority.
Canonical name (CNAME)—Specifies the canonical or primary name for
the owner. The owner name is an alias.
Address (A)—Provides the IP address for the zone.
For example, the name server for a zone must contain the following:
An SOA record identifying its zone of authority
An NS record for the primary name server within the zone
An NS record for each secondary name server within the zone
An A record that maps each name server specified in the NS records to an
IP address
Table 2 lists the types of resource records and their field differences.
Table 2 Resource Record Types and Field Differences
RR Type
A
AAAA
AFSDB
CNAME
HINFO
ISDN
MB
MG
MINFO
MR
MX
NS
Field Differences
IP Address, eDirectory context, comments, and version
IPV6 address
Subtype and hostname fields
Domain name of aliased host
CPU and OS fields of up to 256 characters each
ISDN address and subaddress fields
Mailbox address domain name
Mail group member domain name
Responsible mailbox and error message mailbox
Mail rename mailbox
Reference and exchange fields
DNS server domain name
33
Understanding