Classless reverse zones CNAME and PTR resolution issue
Matus UHLAR - fantomas
uhlar at fantomas.sk
Mon Oct 31 10:41:37 UTC 2022
On 31.10.22 15:04, Nagesh Thati wrote:
>Hello,
Hello,
gmail sucks very much when it comes to formatting plaintext portions of e-mail.
That makes mail hard to read.
I recommend you using different mail client, mozilla trhunderbird should be fine.
>I am facing an issue with CNAME and PTR records resolution issues when
>classless reverse zones are defined in the BIND 9.16.* version (Without
>recursion), but it used to work in 9.11.* version (Without recursion).
>Below example shows what reverse zones are created and how the dig output
>is giving,
>*zone "22.10.13.in-addr.arpa" IN { type master; file
>"/var/named/zones/masters/db.22.10.13.in-addr.arpa"; check-names
>ignore; zone-statistics yes;};*
>
>*zone "0-25.22.10.13.in-addr.arpa" IN { type master; file
>"/var/named/zones/masters/db.0-25.22.10.13.in-addr.arpa";
>check-names ignore; zone-statistics yes;};*
as I say, sucks very much.
>2.0-25.22.10.13.in-addr.arpa. 1200 IN PTR 3G00051Phone.india.com.
>2.22.10.13.in-addr.arpa. 1200 IN CNAME 2.0-25.22.10.13.in-addr.arpa.
>I am getting the answer as only CNAME, not getting the exact A record for
>that IP address. This used to work in BIND 9.11.* version, recently I
>upgraded to 9.16.* latest version and from that I am facing this issue.
>
>
>But when I enable the recursion on BIND 9.16.* then I am getting the
>expected answer as below,
>Can someone help me why this behaviour is seen on BIND 9.16.* version.
perhaps there's an error in your zone 22.10.13.in-addr.arpa.
and named did not load it.
try executing "rndc reload" and see what named logs tell you
--
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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