VS: A And Cname-record
Matus UHLAR - fantomas
uhlar at fantomas.sk
Thu Jun 18 11:36:17 UTC 2020
On 17.06.20 22:31, Jukka Pakkanen wrote:
>Yes but before going to RFC details one should check the basic spelling and syntax first...
if there was a spelling mistake, the error would not be "CNAME and other data"
when the error is "CNAME and other data", spelling mistakes don't matter...
>Lähettäjä: bind-users <bind-users-bounces at lists.isc.org> Puolesta Mark Andrews
>> On 18 Jun 2020, at 07:56, Bogdan-Stefan Rotariu <bogdan at rotariu.ro> wrote:
>>> On 18 Jun 2020, at 00:44, Ejaz Ahmed <mejaz at cyberia.net.sa> wrote:
>>> when i am trying to add A and CNAME record together for the same
>>> subdomain, getting an error as below, you all kind assistance would
>>> be highly appreciated thanks in advance
>>> my records are as follows in zone
>>> auotdiscover IN A 188.8.131.52
>>> autodiscover IN CNAME autodiscover.acig.com.sa
>>> dns_master_load: acig.com.sa.hosts:102: autodiscover.acig.com.sa:
>>> CNAME and other data
>>> zone acig.com.sa/IN: loading from master file acig.com.sa.hosts
>>> failed: CNAME and other data
>>> zone acig.com.sa/IN: not loaded due to errors
>> CNAME records cannot coexist with any other records last time I’ve
>> checked. See section 2.4 from RFC1912
>>  https://tools.ietf.org/html/rfc1912
>Well it actually goes back to RFC 1034. Unfortunately it wasn’t enforced in nameservers at the beginning and is still not enforced by some servers.
>3.6.2. Aliases and canonical names
>The domain system provides such a feature using the canonical name
>(CNAME) RR. A CNAME RR identifies its owner name as an alias, and specifies the corresponding canonical name in the RDATA section of the RR. If a CNAME RR is present at a node, no other data should be present; this ensures that the data for a canonical name and its aliases cannot be different. This rule also insures that a cached CNAME can be used without checking with an authoritative server for other RR types.
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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