[dns-operations] question on dns setup, name-servers on adjacent IPs

[wbrown at e1b.org]

Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote on 08/27/2016 06:41:08 AM:

> > What is the timeout value in the application?  If one of the servers
> > is down or loses a UDP packet, and the application needs to retry
> > the second server, is it waiting long enough?
> 
> Most applications do not perform name resolution themselves, so this
> is irrelevant. (The resolver will retry, not the application.)

Correct, the application probably uses the resolver on the host machine. 
But if that is timing out too soon, the application fails.  I was thinking 
of the end user experience as the entire system, and was imprecise in my 
statement.


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