Question about 8.2.1 round robin of CNAMEs

Lance Pattist lpattist at sta.samsung.com
Thu Jun 24 19:39:25 UTC 1999


> Hi,
> 
> I've been experimenting with distributing server loading using named
> "round robin" as mentioned in the "comp.protocols.tcp-ip.domains FAQ". I
> can't get it to work like the example indicates.
> 
> This is a two level round robin. First CNAMEs for "hydra" are done round
> robin, then the addresses for each A record associated with the CNAME.
> When I query "hydra" what I see with bind 8.2.1 is that only the first
> CNAME is ever selected. The addesses for that first CNAME, "hydra1", are
> selected round robin. The example in the FAQ says the CNAMEs should also
> be selected round robin.
> 
> I have turned on "multiple-cnames yes;" in my named.conf file. The OS is
> solaris 2.6. I am using the bind distribution nslookup to see the query
> results.
> 
> The "hydra" related RRs are:
> 
> hydra				1	CNAME		hydra1
> 				1	CNAME		hydra2
> 				1	CNAME		hydra3
> hydra1				1	IN	A	10.1.0.1
> 				1	IN	A	10.1.0.2
> 				1	IN	A	10.1.0.3
> hydra2				1	IN	A	10.2.0.1
> 				1	IN	A	10.2.0.2
> 				1	IN	A	10.2.0.3
> hydra3				1	IN	A	10.3.0.1
> 				1	IN	A	10.3.0.2
> 				1	IN	A	10.3.0.3
> 
> My question is: Has any one else seen this problem or know what I am doing
> wrong?
> I am new to using bind, so any help is appreciated. (But I do know that
> multiple CNAMEs is non-standard and "ugly":-)
> 
> Thanks,
> Lance Pattist : lpattist at sta.samsung.com
> 


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