1Net::DNS::RR::SOA(3)  User Contributed Perl Documentation Net::DNS::RR::SOA(3)
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NAME

6       Net::DNS::RR::SOA - DNS SOA resource record
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SYNOPSIS

9           use Net::DNS;
10           $rr = new Net::DNS::RR('name SOA mname rname 0 86400 3600 604800 10800');
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DESCRIPTION

13       Class for DNS Start of Authority (SOA) resource records.
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METHODS

16       The available methods are those inherited from the base class augmented
17       by the type-specific methods defined in this package.
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19       Use of undocumented package features or direct access to internal data
20       structures is discouraged and could result in program termination or
21       other unpredictable behaviour.
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23   mname
24           $mname = $rr->mname;
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26       The domain name of the name server that was the original or primary
27       source of data for this zone.
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29   rname
30           $rname = $rr->rname;
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32       The mailbox which identifies the person responsible for maintaining
33       this zone.
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35   serial
36           $serial = $rr->serial;
37           $serial = $rr->serial(value);
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39       Unsigned 32 bit version number of the original copy of the zone.  Zone
40       transfers preserve this value.
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42       RFC1982 defines a strict (irreflexive) partial ordering for zone serial
43       numbers. The serial number will be incremented unless the replacement
44       value argument satisfies the ordering constraint.
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46   refresh
47           $refresh = $rr->refresh;
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49       A 32 bit time interval before the zone should be refreshed.
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51   retry
52           $retry = $rr->retry;
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54       A 32 bit time interval that should elapse before a failed refresh
55       should be retried.
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57   expire
58           $expire = $rr->expire;
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60       A 32 bit time value that specifies the upper limit on the time interval
61       that can elapse before the zone is no longer authoritative.
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63   minimum
64           $minimum = $rr->minimum;
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66       The unsigned 32 bit minimum TTL field that should be exported with any
67       RR from this zone.
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Zone Serial Number Management

70       The internal logic of the serial() method offers support for several
71       widely used zone serial numbering policies.
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73   Strictly Sequential
74           $successor = $soa->serial( SEQUENTIAL );
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76       The existing serial number is incremented modulo 2**32 because the
77       value returned by the auxiliary SEQUENTIAL() function can never satisfy
78       the serial number ordering constraint.
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80   Date Encoded
81           $successor = $soa->serial( YYYYMMDDxx );
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83       The 32 bit value returned by the auxiliary YYYYMMDDxx() function will
84       be used if it satisfies the ordering constraint, otherwise the serial
85       number will be incremented as above.
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87       Serial number increments must be limited to 100 per day for the date
88       information to remain useful.
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90   Time Encoded
91           $successor = $soa->serial( UNIXTIME );
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93       The 32 bit value returned by the auxiliary UNIXTIME() function will
94       used if it satisfies the ordering constraint, otherwise the existing
95       serial number will be incremented as above.
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98       Copyright (c)1997-2002 Michael Fuhr.
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100       Portions Copyright (c)2002-2004 Chris Reinhardt.
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102       Portions Copyright (c)2010,2012 Dick Franks.
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104       Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.
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106       All rights reserved.
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108       This program is free software; you may redistribute it and/or modify it
109       under the same terms as Perl itself.
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SEE ALSO

112       perl, Net::DNS, Net::DNS::RR, RFC1035 Section 3.3.13, RFC1982
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116perl v5.16.3                      2012-12-28              Net::DNS::RR::SOA(3)
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