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45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
Net::DNS is a collection of Perl modules to interface with
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the Domain Name System (DNS) resolver. It allows the
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programmer to perform queries that are beyond the
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capabilities of gethostbyname and gethostbyaddr.
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Resolver Objects
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A resolver object is an instance of the Net::DNS::Resolver
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class. A program can have multiple resolver objects, each
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maintaining its own state information such as the
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nameservers to be queried, whether recursion is desired,
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etc.
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Packet Objects
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Net::DNS::Resolver queries return Net::DNS::Packet
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objects. Packet objects have five sections:
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o The header section, a Net::DNS::Header object.
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o The question section, a list of Net::DNS::Question
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objects.
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o The answer section, a list of Net::DNS::RR objects.
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o The authority section, a list of Net::DNS::RR objects.
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o The additional section, a list of Net::DNS::RR objects.
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Header Objects
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Net::DNS::Header objects represent the header section of a
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DNS packet.
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Question Objects
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Net::DNS::Question objects represent the query section of
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a DNS packet.
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RR Objects
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Net::DNS::RR is the base class for DNS resource record
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(RR) objects in the answer, authority, and additional
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sections of a DNS packet.
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