[ale] Question about bind server behavior.

[Michael H. Warfield]

On Sat, 2014-01-25 at 12:13 -0500, JD wrote: 
> There is always the TTL for the DNS record involved.  I go with 7 days most of
> the time to allow caching, but if I know changes are coming, I'll drop it to 30
> min the day before, then 5 min on the day of the changes.

Yes, but he queried the master authoritative name server directly, so
that doesn't apply in his case.  The TTL applies to caching resolvers
and recursive name servers.  Even the authoritative slaves will get
updated rapidly, as soon as they get the notify from the master as it
reloads the updated zone and they'll issue an AXFER to repull the zone.

> Don't know if this helps you are not.
> 
> On 01/25/2014 12:07 PM, Jim Lynch wrote:
> > One of my host providers changed the IP address of my server.  I went to the
> > bind server that provides the master records and changed the IP address in the
> > tables.  I restarted bind and then did a dig @<masterdnsserver>
> > <serverwithnewaddress> and it reports the old IP address.  Is something caching
> > that information?
> > 
> > I thought that if I provided a server to dig it asked the system directly.  I
> > guess I need to go back to school.
> > 
> > Jim.
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Michael H. Warfield (AI4NB) | (770) 978-7061 |  mhw at WittsEnd.com
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