[Freeipa-users] RoundRobin - Cname - 2 servers with same services

[Petr Spacek]

On 22.4.2016 16:41, Martin Basti wrote:
> 
> 
> On 22.04.2016 16:00, Gady Notrica wrote:
>>
>> Hello World,
>>
>> I am trying to enable roundrobin on freeipa. I have 2 servers providing same
>> service (http). I am trying to give it a friendly name so that when user
>> what to access it, they can land on any one of the 2 servers.
>>
>> But IPA dns doesn’t want to let me create CName that has the same name but 2
>> different destination.
>>
>> How do I go around this?
>>
>> Thanks,
>>
>> Gady
>>
>>
>>
> Hello,
> 
> you don't, ldapschema limits CNAME to just one value in IPA
> 
> It is possible with BIND9.1+ to have multiple CNAMEs ?
> http://docstore.mik.ua/orelly/networking_2ndEd/dns/ch10_07.htm
> 
> Anyway this is violation of RFC.
> 
> You should use for load balancing A records.

To be absolutely sure I tried to put two CNAME records to one node. BIND 9.10
refuses to load the zone and gives following error:

zone t1.test/IN: loading from master file t1.db failed: multiple RRs of
singleton type
zone t1.test/IN: not loaded due to errors.

So does IPA.

-- 
Petr^2 Spacek