BIND problem, a bad delegation or both of them ?

[HernanNuñez]

	Our DNS is having a problem trying to resolve some domains, and I'm wondering if anybody saw anything like that. 


	As the RFC 2181, section 10.3 said, a RR mustn't be an alias. So in my opinion ther is the problem why bind dosen't retrieve any information of this domain.


dig @localhost ns mediabusiness.tv

; <<>> DiG 8.3 <<>> @localhost ns mediabusiness.tv 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 39733
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;;      mediabusiness.tv, type = NS, class = IN

;; Total query time: 1 msec
;; FROM: my.server. to SERVER: 127.0.0.1
;; WHEN: Thu Mar 17 17:28:30 2005
;; MSG SIZE  sent: 34  rcvd: 34


Bind Debug Level 3 
------------------
req: nlookup(mediabusiness.tv) id 61851 type=15 class=1
req: found 'mediabusiness.tv' as 'mediabusiness.tv' (cname=0)
wanted(0x9011420, IN MX) [IN NS]   
wanted(0x90113f0, IN MX) [IN NS]
findns: 2 NS's added for 'mediabusiness'
ns_forw()
find_zone(mediabusiness.tv, 1)
find_zone: unknown zone
find_zone(tv, 1)
find_zone: unknown zone
find_zone(., 1)
find_zone: existing zone 1
nslookup(nsp=0xbfbfdb38, qp=0x8693000, "mediabusiness.tv", d=0)

nslookup: NS "NS1.SENIC.BIZ" c=1 t=2 (flags 0x2)  	<
NS 'NS1.SENIC.BIZ' NS points to CNAME			< BAD
nslookup: NS "NS2.SENIC.BIZ" c=1 t=2 (flags 0x2)	< DELEGATION ?
NS 'NS2.SENIC.BIZ' NS points to CNAME			<

nslookup: 0 ns addrs total
forw: nslookup reports danger
ns_freeqry(0x8693000)

-----------------------------------------------------------------------



	I collected the NS of mediabusiness.tv from whois.networksolutions.com database.




whois -h whois.networksolutions.com mediabusiness.tv

Whois Server Version 1.0

Domain names can now be registered with many different competing registrars.
Go to http://registrar.verisign-grs.com/whois/ for detailed information.

   Domain Name: MEDIABUSINESS.TV
   Registrar: NETWORK SOLUTIONS, LLC.
   Whois Server: whois.networksolutions.com
   Referral URL: http://www.networksolutions.com
   Name Server: NS1.SENIC.BIZ
   Name Server: NS2.SENIC.BIZ
   Status: CLIENT-XFER-PROHIBITED
   Updated Date: 22-dec-2004
   Creation Date: 20-jan-2004
   Expiration Date: 20-jan-2006

   Domain servers in listed order:

   NS1.SENIC.BIZ                67.18.31.242
   NS2.SENIC.BIZ                67.18.31.243

-----------------------------------------------------------------------


	Then, I did the followning query 'dig @67.18.31.242 NS1.SENIC.BIZ'. So, I confirmed that this RR was delegated as aliases.



dig @67.18.31.242 NS1.SENIC.BIZ

; <<>> DiG 8.3 <<>> @67.18.31.242 NS1.SENIC.BIZ 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2178
;; flags: qr aa rd; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;;      NS1.SENIC.BIZ, type = A, class = IN

;; ANSWER SECTION:
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.
NS1.SENIC.BIZ.          4H IN CNAME     NS1.SENIC.BIZ.

;; Total query time: 161 msec
;; FROM: ns1.via-net-works.net.ar to SERVER: 67.18.31.242
;; WHEN: Thu Mar 17 17:26:31 2005
;; MSG SIZE  sent: 31  rcvd: 143


	At last, I wonder if BIND must behave like RFC 2181 said and just claim to NETWORK SOLUTIONS or what ? . Well any coment about it will be apreciated.

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Lic. Hernan Nuñez   
Un*x System Administrator 
Velocom Argentina - Datco
Tecnología y Operaciones |  DDI +54 11 4316-1400
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