load balance of DNS
Barry Margolin
barmar at alum.mit.edu
Mon Jan 16 19:52:34 UTC 2012
In article <mailman.884.1326738053.68562.bind-users at lists.isc.org>,
Warren Kumari <warren at kumari.net> wrote:
> On Jan 13, 2012, at 2:30 PM, Barry Margolin wrote:
>
> > In article <mailman.826.1326465946.68562.bind-users at lists.isc.org>,
> > Simon <simon at bk.it.cx> wrote:
> >
> >> Hi,
> >>
> >> sure it is.
> >>
> >> Here a more detailed version:
> >> http://www.zytrax.com/books/dns/ch9/rr.html
> >
> > RR usually results in roughly equal load balancing. He said he wants
> > one of the addresses to get MORE traffic than the other. How do you
> > propose he specify the ratios with BIND?
>
> One (icky) solution is to hand out more addresses for one server than the
> other
>
> www.example.com IN A 192.168.1.1
> www.example.com IN A 192.168.1.2
> www.example.com IN A 192.168.1.3
> www.example.com IN A 192.168.2.1
>
> Bind 192.168.1.[1-3] to server1 and 192.168.2.1 to server2.
>
> server1 should now get kinda roughly 3 time as much traffic as server2
> (depending on number of clients, phase of moon, flavor of ice-cream, etc).
> Horrendously icky, waste of space, etc but
Unless things have changed since I last checked this (many years ago),
BIND ignores the duplicates.
--
Barry Margolin
Arlington, MA
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