[dns-operations] Introducing

[Stephane Bortzmeyer]

On Tue, Feb 23, 2010 at 11:10:58AM +0700,
 galih <galih at pusat.itb.ac.id> wrote 
 a message of 43 lines which said:

> Hi All, 

Hello.

> i'm one of ITB network administrator who handle service and network
> infrastructure,

If I may, it seems there are some problems on itb.ac.id. For instance,
you list ns.hosting.itb.ac.id as a name server but it is not
authoritative:


% dig @ns.hosting.itb.ac.id SOA itb.ac.id

; <<>> DiG 9.5.1-P3 <<>> @ns.hosting.itb.ac.id SOA itb.ac.id
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27633
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 12
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;itb.ac.id.			IN	SOA

;; AUTHORITY SECTION:
itb.ac.id.		1400	IN	NS	ns.hosting.itb.ac.id.
itb.ac.id.		1400	IN	NS	ns1.ai3.net.
itb.ac.id.		1400	IN	NS	ns1.itb.ac.id.
itb.ac.id.		1400	IN	NS	ns2.itb.ac.id.
itb.ac.id.		1400	IN	NS	ns3.itb.ac.id.
itb.ac.id.		1400	IN	NS	sns-pb.isc.org.

;; ADDITIONAL SECTION:
ns.hosting.itb.ac.id.	86400	IN	A	167.205.50.5
ns1.ai3.net.		167947	IN	A	202.249.24.33
ns1.itb.ac.id.		916	IN	A	167.205.23.1
ns1.itb.ac.id.		916	IN	A	202.249.24.65
ns1.itb.ac.id.		916	IN	AAAA	2001:d30:103:3000::53
ns1.itb.ac.id.		916	IN	AAAA	2001:d30:3::53
ns2.itb.ac.id.		3200	IN	A	167.205.22.123
ns2.itb.ac.id.		3200	IN	AAAA	2001:d30:3:1::53
ns3.itb.ac.id.		3200	IN	A	167.205.30.114
ns3.itb.ac.id.		3200	IN	AAAA	2001:d30:3:278::53
sns-pb.isc.org.		38353	IN	A	192.5.4.1
sns-pb.isc.org.		38353	IN	AAAA	2001:500:2e::1

;; Query time: 313 msec
;; SERVER: 167.205.50.5#53(167.205.50.5)
;; WHEN: Tue Feb 23 10:14:27 2010
;; MSG SIZE  rcvd: 411

Also, ns1.itb.ac.id does not reply on all its listed IP addresses:


% dig @167.205.23.1 SOA itb.ac.id

; <<>> DiG 9.5.1-P3 <<>> @167.205.23.1 SOA itb.ac.id
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40896
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 8
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;itb.ac.id.			IN	SOA

;; ANSWER SECTION:
itb.ac.id.		3600	IN	SOA	ns1.itb.ac.id. dnsadm.itb.ac.id. 2010022301 3600 3600 1209600 3600

;; AUTHORITY SECTION:
itb.ac.id.		3600	IN	NS	ns1.ai3.net.
itb.ac.id.		3600	IN	NS	ns3.itb.ac.id.
itb.ac.id.		3600	IN	NS	ns.hosting.itb.ac.id.
itb.ac.id.		3600	IN	NS	ns1.itb.ac.id.
itb.ac.id.		3600	IN	NS	ns2.itb.ac.id.
itb.ac.id.		3600	IN	NS	sns-pb.isc.org.

;; ADDITIONAL SECTION:
ns1.itb.ac.id.		3600	IN	A	167.205.23.1
ns1.itb.ac.id.		3600	IN	A	202.249.24.65
ns1.itb.ac.id.		3600	IN	AAAA	2001:d30:3::53
ns1.itb.ac.id.		3600	IN	AAAA	2001:d30:103:3000::53
ns2.itb.ac.id.		3600	IN	A	167.205.22.123
ns2.itb.ac.id.		3600	IN	AAAA	2001:d30:3:1::53
ns3.itb.ac.id.		3600	IN	A	167.205.30.114
ns3.itb.ac.id.		3600	IN	AAAA	2001:d30:3:278::53

;; Query time: 310 msec
;; SERVER: 167.205.23.1#53(167.205.23.1)
;; WHEN: Tue Feb 23 10:26:04 2010
;; MSG SIZE  rcvd: 378



% dig @202.249.24.65 SOA itb.ac.id

; <<>> DiG 9.5.1-P3 <<>> @202.249.24.65 SOA itb.ac.id
; (1 server found)
;; global options:  printcmd
;; connection timed out; no servers could be reached

Good luck!