C:\Tools>nslookup
Default Server:  ad2.local.home.org
Address:  10.0.0.3

> server 4.2.2.2
Default Server:  vnsc-bak.sys.gtei.net
Address:  4.2.2.2

> yahoo.com
Server:  vnsc-bak.sys.gtei.net
Address:  4.2.2.2

DNS request timed out.
    timeout was 2 seconds.
Non-authoritative answer:
Name:    yahoo.com
Addresses:  66.94.234.13, 216.109.112.135