weird in-addr.arpa alias on reverse lookups

[phn at icke-reklam.ipsec.nu]

Yuri Victorovich <yuri at tsoft.com> wrote:

> I have primary DNS server for few domains.
> And they except other things handle
> reverse lookup for classless (/28) network.

Normal procedures aka rfc2317

> When anyone issues reverse request it resolves
> it but always gives also alias for this IP:
> Aliases: XXX.XXX.XXX.in-addr.arpa.

> Configuration:
> /etc/named.conf:
> zone "XXX-28.XXX.XXX.XXX.in-addr.arpa" {
>         type master;
>         file "XXX-28.XXX.XXX.XXX.rev";
> };
> --------------------------------------------------
> /etc/XXX-28.XXX.XXX.XXX.rev:
> $ORIGIN XXX-28.XXX.XXX.XXX.in-addr.arpa.
> $TTL    3600
> @       IN      SOA     XX1.mydomain.com.  root.mydomain.com. (
>                                 102     ; Serial
>                                 1h      ; Refresh
>                                 5m      ; Retry
>                                 1w      ; Expire
>                                 15m )   ; Minimum
>         IN      NS      XX1.mydomain.com.
> XX3             IN      PTR     name3.optima-hyper.com.
> XX1             IN      PTR     name1.mydomain.com.
> XX2             IN      PTR     name2.mydomain.com.
> =====================================

> Everything works but these aliases seem weird
> and probably indicate some misconfiguration.

Maybe. Care to tell us what zone this is about ?

> Any ideas why they appear?

Might be the correct answer to the wrong question.

how does 'dig -x <your-ip> PTR' looks like ?

> Yuri.



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