Referencing by cname from one authoritative zone to another authoritative zone

[Matus UHLAR - fantomas]

On 03.10.24 09:21, 大浦 義 wrote:
>・9.9.4→OK
># dig @ns1.bbb.co.jp time1.aaa.ne.jp

>;; ANSWER SECTION:
>time1.aaa.ne.jp.       3600    IN      CNAME   ns2.bbb.co.jp.
>ns2.bbb.co.jp.       900     IN      A       1.2.3.5
>
>;; AUTHORITY SECTION:
>bbb.co.jp.           900     IN      NS      ns6-tk02.ccc.ad.jp.
>bbb.co.jp.           900     IN      NS      ns2.bbb.co.jp.
>bbb.co.jp.           900     IN      NS      ns1.bbb.co.jp.
>
>;; ADDITIONAL SECTION:
>ns1.bbb.co.jp.       900     IN      A       1.2.3.4

>・9.18.28→NG
># dig @ns1-2024.bbb.co.jp time1.aaa.ne.jp

>;; ANSWER SECTION:
>time1.aaa.ne.jp.       3600    IN      CNAME   ns2.bbb.co.jp.


Now do:
dig @ns1-2024.bbb.co.jp ns2.bbb.co.jp.

what records does ns2.bbb.co.jp. have on ns1-2024.bbb.co.jp ?


>On 03.10.24 08:40, 大浦 義 wrote:
>>Referencing by cname from one authoritative zone to another authoritative zone may not work properly depending on the version.
>>Is this due to a specification change? Is there a way to handle this?
>>I am running nslookup from a client that is not included in acl respectively.
>>I would like to make the NG part become OK.
>>
>>--
>>One Server Has Two Zone.
>>aaa.ne.jp & bbb.co.jp
>>
>>・aaa.ne.jp
>>time1			CNAME	ns2.bbb.co.jp.
>>time2			CNAME	ns1.bbb.co.jp.
>>
>>・bbb.co.jp
>>ns1			A	1.2.3.4
>>ns2			A	1.2.3.5
>>time		CNAME	ns2
>>
>>・Bind9.9.4→OK
>>>nslookup time2.aaa.ne.jp
>>名前:    ns1.bbb.co.jp
>>Address:  1.2.3.4
>>Aliases:  time2.aaa.ne.jp
>>
>>・Bind9.18.28→NG
>>>nslookup time2.aaa.ne.jp
>>名前:    ns1.bbb.co.jp
>
>nslookup is NOT a good tool to resolve DNS problems.  Use "dig" instead.
>
>
>dig time2.aaa.ne.jp @"IP of Bind9.9.4"
>
>
>dig time2.aaa.ne.jp @"IP of Bind9.18.28"

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