9.1 Introduction
Resolvers are considerably easier
to configure than name servers. A BIND resolver supports just a few
configuration directives:
- domain
-
Sets the resolver's local domain name
- search
-
Sets the resolver's search list and, implicitly, the
local domain name
- nameserver
-
Configures the resolver to query a remote name server
- sortlist
-
Configures the resolver to sort certain A records to the beginning of
responses
- options
-
Controls miscellaneous aspects of the resolver's
configuration, such as timeouts
Windows resolvers support configuration of a similar set of
parameters: at least the local domain name, search list, and remote
name servers to query. This chapter includes recipes for configuring
each of these aspects of a resolver's behavior, for
both BIND and Windows resolvers. It also includes several sample
programs that demonstrate how to use the invaluable Net::DNS module
to send queries, request zone transfers, and send dynamic updates
from a Perl program.
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