BIND problem, a bad delegation or both of them ?
From: Hernan Nuñez (hnunez_at_vianetworks.com.ar)
Date: 03/17/05
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- In reply to: Urbán Csaba: "RFC 3069"
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Date: Thu, 17 Mar 2005 17:59:46 -0300 To: freebsd-isp@freebsd.org
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.
-------------------------------------------------
Lic. Hernan Nuñez
Un*x System Administrator
Velocom Argentina - Datco
Tecnología y Operaciones | DDI +54 11 4316-1400
-------------------------------------------------
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- Previous message: Edward Shabotinsky: "RE: FTP controlled by SQL"
- In reply to: Urbán Csaba: "RFC 3069"
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