# nslookup www.zabbix.com
Server:		10.20.0.10
Address:	10.20.0.10#53

Non-authoritative answer:
Name:	www.zabbix.com
Address: 87.110.183.172


# time nslookup support.zabbix.com
;; Got SERVFAIL reply from 10.20.0.10, trying next server
;; Got SERVFAIL reply from 10.20.0.11, trying next server
Server:		10.20.0.10
Address:	10.20.0.10#53

** server can't find support.zabbix.com: SERVFAIL


real	0m23.399s
user	0m0.004s
sys	0m0.004s


# dig www.zabbix.com

; <<>> DiG 9.7.3 <<>> www.zabbix.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45652
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.zabbix.com.			IN	A

;; ANSWER SECTION:
www.zabbix.com.		244	IN	A	87.110.183.172

;; Query time: 0 msec
;; SERVER: 10.20.0.10#53(10.20.0.10)
;; WHEN: Tue Oct 30 18:35:43 2012
;; MSG SIZE  rcvd: 48

# dig support.zabbix.com

; <<>> DiG 9.7.3 <<>> support.zabbix.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21375
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;support.zabbix.com.		IN	A

;; Query time: 5925 msec
;; SERVER: 10.20.0.10#53(10.20.0.10)
;; WHEN: Tue Oct 30 18:36:07 2012
;; MSG SIZE  rcvd: 36