[GLLUG] DNS Child Name Servers

[Thomas Driscoll]

I am trying to understand the question... but this is what I took away.
Usually there is a Primary DNS server and a Secondary DNS server. The
Secondary has no data at start, it queries primary and then stores that
data in case primary goes down or someone asks Secondary for data that
it knows about (authoritative responses). So changes to a zone would be
made on the Primary and the secondary would suck in those changes.
Variations between the Primary and Secondary should only be during the
time Secondary is updated, and with notify command for DNS that should
be almost instantaneously completed. Otherwise, I think the TTL (time to
live) determines when secondary is updated. Is that the data you are
looking for?


tad


On 01/06/2016 11:58 AM, Jeff Lawton wrote:
> Gluggers,
>
> I have a question that I have found difficult to find and answer for. I
> suspect I am over thinking it and am hoping some on the list has a
> deeper understanding than I do on this. I have a domain, lets say
> example.com. I have two sets of name servers ns1.example.com and
> ns1.example.com, and nshost1.example.com and snhost2.example.com. The
> ns1 and ns2 report the same information, nshost1 and nshost2 report the
> same information. nshost1 and ns1 report information for different
> domains. My question is if this is a bad Idea or it does not matter
> because the domains specify the name servers anyway.
>
> Thank you in advance for any clarity given.
> Jeff
>