DNS Round Robin

phn at icke-reklam.ipsec.nu phn at icke-reklam.ipsec.nu
Fri Jan 30 17:51:26 UTC 2004

Bell, William  IT <WBell at mvphealthcare.com> wrote:
> Hi,
> Quick question:
> Does BIND v9.2.3 allow multiple CNAME records, used to implement DNS round
> robin?  For example:
> beta1.company.com.	30	IN	A
> beta2.company.com.	30	IN	A
> beta3.company.com.	30	IN	A
> beta.company.com.	30	IN	CNAME		beta1.company.com.
> beta.company.com.	30	IN	CNAME		beta2.company.com.
> beta.company.com.	30	IN	CNAME		beta3.company.com.

No. It's illegal and won't do what you intend to do.

> (You can also see a similar example in the middle of page 274 of the DNS &
> BIND, 4th Ed. book.)

> If not, does v9.2.3 support the 'multiple-cnames' statement?

No, by the same reasons.

> The DNS & BIND book states that neither of these features will work after
> BIND 9.1.0, but I was wondering if things might have changed since the book
> was published.

Killing is still wrong, so is "CNAME and other data". In another universe
one or both of the above may be reversed, but let's hope we never comes there.

> Thanks!

> Regards,
> -Bill

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Peter Håkanson         
        IPSec  Sverige      ( At Gothenburg Riverside )
           Sorry about my e-mail address, but i'm trying to keep spam out,
	   remove "icke-reklam" if you feel for mailing me. Thanx.

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