Hi Alexander,
We've actually run into this before. Once upon a time, RCN cable used
to run some slave servers for us, but we've long since moved away from
them, including zone transfers. We yanked them from our registrar a
long time ago, and life was good. For whatever reason, RCN's still
answering queries for brandeis.edu.
As others have mentioned, change your DNS servers with your domain
registrar, and you'll be fine.
John
On 06/18/2012 11:49 AM, Alexander Gurvitz wrote:
Can someone enlighten me on the following scenario
(I guess it's explained somewhere, but can't find the info.):
example.com <http://example.com> was served by ns.OLDprovider.net
<http://ns.OLDprovider.net>
example.com <http://example.com> owner wants to move his domain to
ns.NEWprovider.net <http://ns.NEWprovider.net>
oldprovider.net <http://oldprovider.net> is not cooperating, and
continues to serve
example.com <http://example.com> 172800 NS ns.OLDprovider.net
<http://ns.OLDprovider.net>
(*.gtld-servers.net <http://gtld-servers.net> and ns.newprovider.com
<http://ns.newprovider.com> now serve
example.com <http://example.com> 172800 NS ns.NEWprovider.net
<http://ns.NEWprovider.net>)
Recursive resolver ns.isp.com <http://ns.isp.com> queried for
www.example.com <http://www.example.com> every few minutes,
and currently have
example.com <http://example.com> 45892 NS ns.OLDprovider.net
<http://ns.OLDprovider.net>
in it's cache. www.example.com <http://www.example.com> have TTL of 3600.
Thus each hour ns.isp.com <http://ns.isp.com> queries ns.OLDprovider.net
<http://ns.OLDprovider.net>,
with each query gets new NS record, and... refreshes the NS TTL ?
Will ns.isp.com <http://ns.isp.com> EVER query ns.NEWprovider.net
<http://ns.NEWprovider.net> ?
I'd be happy to know how BIND behaves, but also
how other servers may behave in this case.
Regards,
Alexander Gurvitz,
net-me.net <http://net-me.net>
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