multiple-cnames support in 8.2.2-P5

[Kevin Darcy]

I believe all versions of BIND 8 still support multiple-cnames, but the
option is terminated with extreme prejudice in BIND 9.

In the long term, SRV records should give you the weighting capability
you desire.


- Kevin

ray at doubleclick.net wrote:

> On Wed, 3 Jan 2001, Kevin Darcy wrote:
>
> > Whether multiple-cnames is "evil" or not is basically irrelevant.
> > The functionality simply isn't supported by later versions of
> > BIND, so you need to find alternatives.
>
> Well, I use multiple-CNAME exactly to support "weighting" in some
> situations (yes, better to use a load-balancer to do this but as a
> backup to software or hardware load-balancing, the weighted method
> is pretty useful):
>
> www     IN      CNAME   www1
> www     IN      CNAME   www2
> www     IN      CNAME   www3
>
> www1    IN      A       192.168.1.10
> www2    IN      A       192.168.2.20
> www3    IN      A       192.168.2.20
>
> Above would result in 2x the traffic (or 66%) going to 192.168.2.20,
> and 1x traffic (33%) directed to 192.168.1.10. We could change the
> RRset ordering in named.conf from round-robin to random also ...
>
> Is this support ("multiple-cnames yes" in named.conf options section)
> retained in BIND 8.2.2-P7 or 8.2.3-P* ???
>
> --
> Ray