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Re: failed secondary

From: Mitch Kahn
Date: Wednesday, October 10, 2001
Time: 10:13:23 am

Jeff,

Their primary went down Tuesday.

thanks,

Mitch


>on 10/9/01 4:51 PM, Mitch Kahn wisely articulated:
>
>> We are swapping secondary services with another organization about seven
>> hundred miles from here (in New York City). They provide both primary and
>> secondary services for themselves on their own network. We provide an
>> additional secondary server. Their web servers are colocated elsewhere in NYC.
>>
>> Their connection is down. The web servers that are colocated are running and
>> have web access. BUT, their web sites had disappeared from the Internet even
>> though our Primary DNS (that provides their secondary service) is online and
>> working fine.
>>
>How long has their primary DNS connection been down? Longer than the value
>your secondary remains authoritative [usually 3-7 days]?




>
>> Then I created a DNS entry for their company domain in my
>> primary server (primary listing not secondary) and deleted the secondary
>> listing. All of the sudden all of their domains showed up except for a new one
>> for which I had no secondary entry. I entered it as a primary and it showed up
>> immediately as well.
>>
>> The important issue was to get them to show up a.s.a.p. I am puzzled as to why
>> they didn't show up automatically.
>>
>> My questions:
>> Since we have not modified our secondary server in months, what could have
>> caused the disappearance of their web sites from the Internet? What should we
>> look at for a fix? Why wouldn't any we sites show up until I moved their
>> company DNS listing from a secondary to a primary? And, why did that one
>> change make them all show up?
>>
>Since you entered the zone as a primary, your servers would be answering
>authoritatively as opposed to an expired secondary. If your servers are
>listed in the delegation as a name server, the site should be up and you can
>switch back to secondary when their DNS connection is working again.
>
>> Thanks in advance for any information.
>
>That's my take anyway, since it happened to me a couple months ago.




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