Authoritative Answer bit, SOA and NS

[Sebastian Castro]

Hi all:

Just for academic purposes, I have a particular question.

Server ns.nic.cl is primary for ccTLD .cl zone.

If I have using dig for NS records, I got


===============================
[:~] dig ns cl. @ns.nic.cl +noadditional

; <<>> DiG 9.2.0 <<>> ns cl. @ns.nic.cl +noadditional
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8998
;; flags: qr aa rd; QUERY: 1, ANSWER: 12, AUTHORITY: 0, ADDITIONAL: 9
                                         ^^^^^^^^^^^^^^

Authority is zero, why?


;; QUESTION SECTION:
;cl.                            IN      NS

;; ANSWER SECTION:
cl.                     86400   IN      NS      ns.rdc.cl.
cl.                     86400   IN      NS      uchile.cl.
cl.                     86400   IN      NS      ns.UU.NET.
cl.                     86400   IN      NS      ns.EU.NET.
cl.                     86400   IN      NS      terminus.reuna.cl.
cl.                     86400   IN      NS      ns.cec.uchile.cl.
cl.                     86400   IN      NS      dns.ripe.NET.
cl.                     86400   IN      NS      antonia.webhost.cl.
cl.                     86400   IN      NS      ns2.gisc.cl.
cl.                     86400   IN      NS      ns-ext.vix.com.
cl.                     86400   IN      NS      ns.nic.cl.
cl.                     86400   IN      NS      sunsite.dcc.uchile.cl.

;; Query time: 1 msec
;; SERVER: 216.72.164.132#53(ns.nic.cl)
;; WHEN: Fri Feb  8 12:43:45 2002
;; MSG SIZE  rcvd: 450
=================================


When I asked for SOA, I got

=================================
[ReQuiN en rivendel.agustinas.nic.cl:~] dig soa cl. @ns.nic.cl
+noadditional

; <<>> DiG 9.2.0 <<>> soa cl. @ns.nic.cl +noadditional
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55523
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 12, ADDITIONAL: 9
                                        ^^^^^^^^^^^^^^^

---> Here Authority is non zero, why the difference?


;; QUESTION SECTION:
;cl.                            IN      SOA

;; ANSWER SECTION:
cl.                     86400   IN      SOA     ns.nic.cl. info.nic.cl.
2002020805 21600 7200 2592000 86400

;; AUTHORITY SECTION:
cl.                     86400   IN      NS      ns.nic.cl.
cl.                     86400   IN      NS      sunsite.dcc.uchile.cl.
cl.                     86400   IN      NS      ns.rdc.cl.
cl.                     86400   IN      NS      uchile.cl.
cl.                     86400   IN      NS      ns.UU.NET.
cl.                     86400   IN      NS      ns.EU.NET.
cl.                     86400   IN      NS      terminus.reuna.cl.
cl.                     86400   IN      NS      ns.cec.uchile.cl.
cl.                     86400   IN      NS      dns.ripe.NET.
cl.                     86400   IN      NS      antonia.webhost.cl.
cl.                     86400   IN      NS      ns2.gisc.cl.
cl.                     86400   IN      NS      ns-ext.vix.com.

;; Query time: 8 msec
;; SERVER: 200.27.126.126#53(ns.nic.cl)
;; WHEN: Fri Feb  8 12:45:02 2002
;; MSG SIZE  rcvd: 491
=================================


I hope anyone of you can help me to solve this question.

It's a pleasure to be in contact with gurues like Cricket Liu, Mark
Andrews, Bill Manning or Barry Margolin :)


Best Regards



-- 
Sebastian E. Castro Avila             sebastian at nic.cl
Administrador de DNS, NIC Chile

Agustinas 1357 Piso 4  
Santiago, Chile Cod. Postal 6500587                   
Phone: +56-2-9407705                  Fax  : +56-2-9407701