diggins at McMaster.CA
Tue Oct 16 23:06:37 UTC 2007
On Wed, 17 Oct 2007, Mark Andrews wrote:
>> What dictates how long another name server caches the authoritative name
>> server for a domain? I was under the impression it was the default
>> time-to-live, but I have a situation where an authoritative name server
>> was removed from service several days ago, yet queries to it continue. Dig
>> is correctly reporting the new authoritative name servers for the domain
>> in question. How common is it for DNS servers to ignore the ttl?
> Because you failed to update *ALL* the servers for the zone to
> have the new content. Every time a cache queries the old servers
> it re-learns the old NS RRset for the zone.
Do you know something I don't? Our registrar (Canhost) was contacted to
have the DNS server removed. When I check cira.ca, that appears to have
been done (it correctly lists our nameservers). Did I miss a step?
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