knaphad@calstatela.edu wrote:

When I try for nslookup www.aiit.or.kr bitsy.mit.edu 

I keep on getting DNS request timed out. i am able to get DNS query message in WireShark. But no DNS response message.

I tried for different domains. Can anyone please help me with this? 

C:\Users\Kuntal>nslookup www.aiit.or.kr bitsy.mit.edu
DNS request timed out.
    timeout was 2 seconds.
Server:  UnKnown
Address:  18.72.0.3

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
*** Request to UnKnown timed-out

 

This may not be a valid address, so you can try some other IP addresses. If this doesn't work, you can try another DNS server or you can turn off your firewall and try it again.