<p dir="ltr">Also be aware that some systems use a local caching daemon, nscd , that uses it own TTL as time from its last lookup/store of that address. It must be manually flushed. Restart recycles cache data.</p>
<div class="gmail_quote">On Jan 25, 2014 12:45 PM, "Michael H. Warfield" <<a href="mailto:mhw@wittsend.com">mhw@wittsend.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Sat, 2014-01-25 at 12:13 -0500, JD wrote:<br>
> There is always the TTL for the DNS record involved. I go with 7 days most of<br>
> the time to allow caching, but if I know changes are coming, I'll drop it to 30<br>
> min the day before, then 5 min on the day of the changes.<br>
<br>
Yes, but he queried the master authoritative name server directly, so<br>
that doesn't apply in his case. The TTL applies to caching resolvers<br>
and recursive name servers. Even the authoritative slaves will get<br>
updated rapidly, as soon as they get the notify from the master as it<br>
reloads the updated zone and they'll issue an AXFER to repull the zone.<br>
<br>
> Don't know if this helps you are not.<br>
><br>
> On 01/25/2014 12:07 PM, Jim Lynch wrote:<br>
> > One of my host providers changed the IP address of my server. I went to the<br>
> > bind server that provides the master records and changed the IP address in the<br>
> > tables. I restarted bind and then did a dig @<masterdnsserver><br>
> > <serverwithnewaddress> and it reports the old IP address. Is something caching<br>
> > that information?<br>
> ><br>
> > I thought that if I provided a server to dig it asked the system directly. I<br>
> > guess I need to go back to school.<br>
> ><br>
> > Jim.<br>
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