Unpublished Master

[Barry Margolin]

In article <ac37lp$5qq9$1 at isrv4.isc.org>, Danny Mayer  <mayer at gis.net> wrote:
>
>At 02:53 PM 5/16/02, Barry Margolin wrote:
>>In article <ac0r1l$4fn3$1 at isrv4.isc.org>,  <rwatson at OFDA.NET> wrote:
>> >Hello,
>> >
>> >I have an unpublished master.  Actually, it is my desktop.  I plan on going
>> >on vacation but don't want to leave my computer running.  I don't expect any
>> >zone changes while I am gone.
>> >
>> >Is there a high limit on how long the expiration can be set for?
>>
>>It's a 32-bit value measured in seconds, so the maximum is over 136 years.
>>Unless you're planning a Rip Van Winkle I don't think you need to worry
>>about the limit.
>
>The master never expires. That's why it's the master.  Only slaves and other
>DNS servers that cache answers look at the expiration.

He wants to set the expiration time longer than his vacation, so that if
the master crashes while he's away the slaves will not expire it.

BTW, only slaves look at the expiration time.  Caching servers use the TTL
of individual records to decide when to refresh them.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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