In article <mailman.193.1455032305.73610.bind-us...@lists.isc.org>,
 Klaus Darilion <klaus.mailingli...@pernau.at> wrote:

> On 08.02.2016 20:49, Mark Andrews wrote:
> > With a modern nameserver that supports the expire edns option you can
> > also do "dig +expire soa zone @server" which will tell you how long
> > until the zone will expire on this server.
> 
> Aha, but isn't this a different kind of information? A zone which is not
> fresh anymore (refresh interval expired and checks to the master failed)
> may still be valid (not expired yet).

Subtract the time until expiry from the SOA Expire field, and that tells 
you how long it has been since it last refreshed.

-- 
Barry Margolin
Arlington, MA
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