[clue-tech] DNS

[Will]

Microsoft Technet says that a Windows DNS server will wait three seconds for
a DNS server to respond during a recursive lookup before moving on to the
next server for the domain.  I suspect BIND is similar but I do not see
mention of it in the documentation.

On the client side a Windows machine will give it's preferred DNS server two
seconds to respond before moving on to the next DNS server in its list.
 Again I could not find anything on the BIND light weight resolver.

On Thu, Nov 18, 2010 at 1:26 PM, Roy <rjohnston at denverinternet.com> wrote:

> dns will round robin through the servers- so on a no response it may retry
> but if it does get a response but bad data - it will cache that and stop.
> which is why all authoritative NS need to be up to date and synced.
>
>
>
> Chris Ernst <penguin-guy at comcast.net> wrote:
>
> >It's up to the client.  Typically, if the initial request fails and
> >there is another NS record, it will just try the next one.
> >
> >       - Chris
> >
> >On 11/18/2010 12:56 PM, David L. Willson wrote:
> >> If a domain has a couple NS records setup at the registrar, what happens
> >> if one of name-servers is down? Do lookups fail back to the client or
> >> fail gracefully to the other NS with no notice to the client?
> >>
> >> What if there are more than two name-servers? Are they all tried before
> >> a failure is reported, or just a certain number?
> >>
> >> What if the name-server is up, but there's another sort of failure, like
> >> "no such domain" or something like that?
> >>
> >> I am willing and able to look this up myself, or trace it out myself,
> >> but I'm short of time, so I thought I'd check if someone knew off the
> >> top of their head, and wanted to show off a bit.
> >>
> >> David L. Willson
> >> Trainer, Engineer, Enthusiast
> >> MCT MCSE Network+ A+ Linux+ LPIC-1 NovellCLA UbuntuCP
> >> tel://720.333.LANS
> >> Freeing the world from the tyranny (or whatevery) of Microsofty-ness
> >>
> >>
> >>
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