It is an ISP DNS, when they test the second DNS (advertised as secondary for
customers), when they test they noticed that it is a little bit slow when
opening same websites comparing to first DNS (primary), this happens only first
time they open the website then it will be fine (because caching)..
Now, they do have DHCP clients, I'll put the second DNS for them and see if
there is any difference.
Thanks everyone,
Alans
JINMEI Tatuya / 神明達哉 wrote
(but my comment is for the OP, AlanS):
> If the reason is due to client-side server
> selection algorithm (many Unix based resolvers only uses the first
> address in /etc/resolv.conf as long as it responds to their queries),
> there's basically nothing you can do as the server side operator.
If you also operate the DHCP server(s) from which
the clients obtain the data to put in /etc/resolv.conf,
you can try to balance the resolver load by tuning the
DHCP advertisements.
No-one on the list can really advise whether this would be
useful, as you don't say what problem you're trying to solve,
Best regards,
Niall O'Reilly
University College Dublin IT Services
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