phpman > perldoc > 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