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Net::DNS::RR::SOA(3pm) User Contributed Perl Documentation Net::DNS::RR::SOA(3pm)
NAME
Net::DNS::RR::SOA - DNS SOA resource record
SYNOPSIS
use Net::DNS;
$rr = Net::DNS::RR->new('name SOA mname rname 0 14400 3600 1814400 3600');
DESCRIPTION
Class for DNS Start of Authority (SOA) resource records.
METHODS
The available methods are those inherited from the base class augmented by the type-
specific methods defined in this package.
Use of undocumented package features or direct access to internal data structures is
discouraged and could result in program termination or other unpredictable behaviour.
mname
$mname = $rr->mname;
$rr->mname( $mname );
The domain name of the name server that was the original or primary source of data for
this zone.
rname
$rname = $rr->rname;
$rr->rname( $rname );
The mailbox which identifies the person responsible for maintaining this zone.
serial
$serial = $rr->serial;
$serial = $rr->serial(value);
Unsigned 32 bit version number of the original copy of the zone. Zone transfers preserve
this value.
RFC1982 defines a strict (irreflexive) partial ordering for zone serial numbers. The
serial number will be incremented unless the replacement value argument satisfies the
ordering constraint.
refresh
$refresh = $rr->refresh;
$rr->refresh( $refresh );
A 32 bit time interval before the zone should be refreshed.
retry
$retry = $rr->retry;
$rr->retry( $retry );
A 32 bit time interval that should elapse before a failed refresh should be retried.
expire
$expire = $rr->expire;
$rr->expire( $expire );
A 32 bit time value that specifies the upper limit on the time interval that can elapse
before the zone is no longer authoritative.
minimum
$minimum = $rr->minimum;
$rr->minimum( $minimum );
The unsigned 32 bit minimum TTL field that should be exported with any RR from this zone.
Zone Serial Number Management
The internal logic of the serial() method offers support for several widely used zone
serial numbering policies.
Strictly Sequential
$successor = $soa->serial( SEQUENTIAL );
The existing serial number is incremented modulo 2**32 because the value returned by the
auxilliary SEQUENTIAL() function can never satisfy the serial number ordering constraint.
Date Encoded
$successor = $soa->serial( YYYYMMDDxx );
The 32 bit value returned by the auxilliary YYYYMMDDxx() function will be used if it
satisfies the ordering constraint, otherwise the serial number will be incremented as
above.
Serial number increments must be limited to 100 per day for the date information to remain
useful.
Time Encoded
$successor = $soa->serial( UNIXTIME );
The 32 bit value returned by the auxilliary UNIXTIME() function will used if it satisfies
the ordering constraint, otherwise the existing serial number will be incremented as
above.
COPYRIGHT
Copyright (c)1997 Michael Fuhr.
Portions Copyright (c)2003 Chris Reinhardt.
Portions Copyright (c)2010,2012 Dick Franks.
All rights reserved.
Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.
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
perl, Net::DNS, Net::DNS::RR, RFC1035 Section 3.3.13, RFC1982
perl v5.32.1 2021-12-18 Net::DNS::RR::SOA(3pm)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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