Net::DNS::Resolver::Recurse - phpMan

NAME
    Net::DNS::Resolver::Recurse - DNS recursive resolver

SYNOPSIS
        use Net::DNS::Resolver::Recurse;

        my $resolver = new Net::DNS::Resolver::Recurse();
        $resolver->debug(1);

        $resolver->hints('198.41.0.4');     # A.ROOT-SERVER.NET.

        my $packet = $resolver->send( 'www.rob.com.au.', 'A' );

DESCRIPTION
    This module is a subclass of Net::DNS::Resolver.

METHODS
    This module inherits almost all the methods from Net::DNS::Resolver.
    Additional module-specific methods are described below.

  hints
    This method specifies a list of the IP addresses of nameservers to be
    used to discover the addresses of the root nameservers.

        $resolver->hints(@ip);

    If no hints are passed, the priming query is directed to nameservers
    drawn from a built-in list of IP addresses.

  query, search, send
    The query(), search() and send() methods produce the same result as
    their counterparts in Net::DNS::Resolver.

        $packet = $resolver->send( 'www.example.com.', 'A' );

    Server-side recursion is suppressed by clearing the recurse flag in
    query packets and recursive name resolution is performed explicitly.

    The query() and search() methods are inherited from Net::DNS::Resolver
    and invoke send() indirectly.

  callback
    This method specifies a code reference to a subroutine, which is then
    invoked at each stage of the recursive lookup.

    For example to emulate dig's "+trace" function:

        my $coderef = sub {
            my $packet = shift;

            printf ";; Received %d bytes from %s\n\n",
                    $packet->answersize, $packet->answerfrom;
        };

        $resolver->callback($coderef);

    The callback subroutine is not called for queries for missing glue
    records.

ACKNOWLEDGEMENT
    This package is an improved and compatible reimplementation of the
    Net::DNS::Resolver::Recurse.pm created by Rob Brown in 2002, whose
    contribution is gratefully acknowledged.

COPYRIGHT
    Copyright (c)2014,2019 Dick Franks.

    Portions Copyright (c)2002 Rob Brown.

    All rights reserved.

LICENSE
    Permission to use, copy, modify, and distribute this software and its
    documentation for any purpose and without fee is hereby granted,
    provided that the original copyright notices appear in all copies and
    that both copyright notice and this permission notice appear in
    supporting documentation, and that the name of the author not be used in
    advertising or publicity pertaining to distribution of the software
    without specific prior written permission.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

SEE ALSO
    Net::DNS::Resolver