The most common resource records are listed in Table 27.2.
TABLE 27.2 Commonly Used DNS Records
A (Address) record The Address record contains the hostname to IP address
mapping for the particular host. The majority of the
records in the zone will be host A Address records.
PTR (Pointer) record The Pointer record is used for reverse lookups. This file
is merely a pointer to another location.
MX (Mail Exchanger) record The Mail Exchanger record identifies the domain??™s
preferred mail servers.
CNAME (Canonical Name) record Also known as an alias. Canonical Name must be used
with an existing A record; it provides an alias type name
to map to the original A record??™s IP address.
Now that you understand the fundamentals of DNS and how it works for you as a client,
let??™s look at how to configure it on openSUSE.
Configuring DNS with YaST2
Configuring DNS with YaST is an easy process when you configure the client. Remember
from our earlier discussion that the DNS resolution process is used for simplicity, allowing
a client to use an easy-to-remember name instead of what it really needs to use, which is
the IP address.
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