Aras Yorgancı <[email protected]> wrote:
>
> Our BIND 9.9 DNS servers cannot resolve PTR record of a mx server. So We
> cannot established e-mail communication.
This is because the delegation NS records point at CNAMEs, which is not
allowed - if a resolver tries to chase CNAMEs in this situation it can get
into a confusing mess. BIND just refuses to use NS records that point at
CNAMEs.
; <<>> DiG 9.13.0-dev <<>> -x 213.161.131.25 @pri.authdns.ripe.net.
;; AUTHORITY SECTION:
131.161.213.in-addr.arpa. 172800 IN NS dns.est.com.tr.
131.161.213.in-addr.arpa. 172800 IN NS dns2.est.com.tr.
; <<>> DiG 9.13.0-dev <<>> dns.est.com.tr.
;; ANSWER SECTION:
dns.est.com.tr. 600 IN CNAME dns3.est.com.tr.
dns3.est.com.tr. 600 IN A 213.153.232.20
; <<>> DiG 9.13.0-dev <<>> dns2.est.com.tr.
;; ANSWER SECTION:
dns2.est.com.tr. 600 IN CNAME dns4.est.com.tr.
dns4.est.com.tr. 600 IN A 213.74.122.20
Tony.
--
f.anthony.n.finch <[email protected]> http://dotat.at/
Dogger, Fisher, German Bight: East or northeast 5 to 7, occasionally gale 8 in
Fisher. Moderate or rough. Showers. Moderate or good.
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