Here is an example for a company that **should** know better -
[
root@s... root]# dig
computerland.co.nz mx
; <<>> DiG 9.2.1 <<>>
computerland.co.nz mx
;; global options: printcmd
;; Got
answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:
15150
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL:
1
;; QUESTION
SECTION:
;computerland.co.nz.
IN MX
;; ANSWER
SECTION:
computerland.co.nz. 86400
IN MX 5
smtp.computerland.co.nz.
computerland.co.nz.
86400 IN
MX 10 mta.xtra.co.nz.
;; AUTHORITY
SECTION:
computerland.co.nz. 86400
IN NS
alien.xtra.co.nz.
computerland.co.nz.
86400 IN
NS terminator.xtra.co.nz.
;; ADDITIONAL
SECTION:
smtp.computerland.co.nz. 86400
IN A
203.167.229.7
;; Query time: 297 msec
;; SERVER:
127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jun 15 15:00:23 2004
;; MSG
SIZE rcvd: 143
[
root@s... root]# dig
-x 203.167.229.7
; <<>> DiG 9.2.1
<<>> -x 203.167.229.7
;; global options: printcmd
;; Got
answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id:
61325
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL:
0
;; QUESTION SECTION:
;7.229.167.203.in-addr.arpa.
IN PTR
;; AUTHORITY
SECTION:
229.167.203.in-addr.arpa. 1800
IN SOA
dns1.clear.net.nz.
hostmaster.clear.net.nz. 2004051709 10800 3600 604800
1800
;; Query time: 30 msec
;; SERVER:
203.98.6.51#53(203.98.6.51)
;; WHEN: Tue Jun 15 15:00:38 2004
;; MSG
SIZE rcvd: 108
[
root@s... root]#