Master/slave configuration
Barry Margolin
barmar at alum.mit.edu
Fri Mar 9 01:04:59 UTC 2012
In article <mailman.210.1331230835.63724.bind-users at lists.isc.org>,
michoski <michoski at cisco.com> wrote:
> On 3/8/12 8:15 AM, "Romgo" <romgo at free.fr> wrote:
> > I can use a VIP for DNS server, but I though that master/slave
> > configuration was made in order to avoid to use a VIP.
>
> Master/slave was to avoid SPOF -- if the master dies, who cares with a
> reasonable expire time. :-)
Master/slave also predated VIPs. It goes back to the early days of
TCP/IP, many years before anyone had ever implemented load balancers,
anycast, and other HA solutions.
--
Barry Margolin
Arlington, MA
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