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How do I identify DNS resolves correctley?

Posted on 2008-10-03
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505 Views
Last Modified: 2009-09-22
Why each time i am getting same DNS resolved IP Address:  67.18.199.2
I tried to debug from CMD got this message.
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 1,  additional = 0

    QUESTIONS:
        84.236.225.220.in-addr.arpa, type = PTR, class = IN
    ANSWERS:
    ->  84.236.225.220.in-addr.arpa
        name = MBMUMBXXXXD001DNS001
        ttl = 86400 (1 day)
    AUTHORITY RECORDS:
    ->  236.225.220.in-addr.arpa
        nameserver = MBMUMBXXXXD001DNS002
        ttl = 86400 (1 day)

------------
Default Server:  MBMUMBXXXXD001DNS001
Address:  220.225.236.84

> sify.com
Server:  MBMUMBXXXXD001DNS001
Address:  220.225.236.84

------------
Got answer:
    HEADER:
        opcode = QUERY, id = 2, rcode = NXDOMAIN
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        sify.com.reliancebroadband.co.in, type = A, class = IN
    AUTHORITY RECORDS:
    ->  reliancebroadband.co.in
        ttl = 8929 (2 hours 28 mins 49 secs)
        primary name server = ns1.exchangenext.net
        responsible mail addr = admin.exchangenext.net
        serial  = 2005011921
        refresh = 86400 (1 day)
        retry   = 3600 (1 hour)
        expire  = 604800 (7 days)
        default TTL = 21600 (6 hours)

------------
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 3, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 2,  authority records = 2,  additional = 2

    QUESTIONS:
        sify.com.co.in, type = A, class = IN
    ANSWERS:
    ->  sify.com.co.in
        canonical name = com.co.in
        ttl = 10139 (2 hours 48 mins 59 secs)
    ->  com.co.in
        internet address = 67.18.199.2
        ttl = 13912 (3 hours 51 mins 52 secs)
    AUTHORITY RECORDS:
    ->  com.co.in
        nameserver = ns39.hostgator.com
        ttl = 13912 (3 hours 51 mins 52 secs)
    ->  com.co.in
        nameserver = ns40.hostgator.com
        ttl = 13912 (3 hours 51 mins 52 secs)
    ADDITIONAL RECORDS:
    ->  ns39.hostgator.com
        internet address = 67.18.199.2
        ttl = 13804 (3 hours 50 mins 4 secs)
    ->  ns40.hostgator.com
        internet address = 67.18.199.3
        ttl = 13378 (3 hours 42 mins 58 secs)

------------
Non-authoritative answer:
Name:    com.co.in
Address:  67.18.199.2
Aliases:  sify.com.co.in
0
Comment
Question by:amita_amita
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11 Comments
 
LVL 38

Expert Comment

by:Hypercat (Deb)
ID: 22637450
Not sure what your question is.  The answer you're getting indicates that "sify.com.co.in" is an alias (CNAME or canonical name) for "com.co.in".  The IP address for "com.co.in" is 67.18.199.2.  The odd thing is that 67.18.199.2 is also the IP address of the DNS server named ns39.hostgator.com.  Unless the site you're trying to locate is actually running on that server, the DNS record for that site is incorrectly configured.
0
 

Author Comment

by:amita_amita
ID: 22637711
My question is when i am doing nslookup for any web site it is giving the same response and resolve with same ip address 67.18.199.2.
For example nslookup hotmail.com - it is not giving me the correct ip address for hotmail, instead i am getting 67.18.199.2.
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LVL 38

Expert Comment

by:Hypercat (Deb)
ID: 22638023
Well, I am not getting that result, but what I am getting is a "Bad Error Value" response on anything I try to resolve from either of those two servers.  If you are using those servers (ns39.hostgator.com and ns40.hostgator.com) as your DNS resolvers or forwarders, then you need to find some other servers to use.  Obviously, they are configured in some way as to prevent response to external queries.  I read something about this having to do with zone transfers, but of course I assume that's not what you're trying to do.  
0
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LVL 59

Expert Comment

by:Darius Ghassem
ID: 22638631
What address do you have in your DNS forwarders? Make sure you have your ISP's DNS servers listed. Can you ping  the websites?
0
 

Author Comment

by:amita_amita
ID: 22641902
Yes i am able to ping www.yahoo.com , but it is giving me diffrent IP 87.248.113.14 but when i do nslookup it gives me always 67.18.199.2 . my simple question why it is resolving some other ip which is not the yahoo server ip, and i am able to ping 67.18.199.2. what is this ip means?
Ex:
C:\>ping www.yahoo.com
Pinging www.yahoo-ht3.akadns.net [87.248.113.14] with 32 bytes of data:
Reply from 87.248.113.14: bytes=32 time=176ms TTL=52
Reply from 87.248.113.14: bytes=32 time=174ms TTL=52

Ping statistics for 87.248.113.14:
    Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 174ms, Maximum = 176ms, Average = 175ms
^C
C:\>nslookup www.yahoo.com
Server:  MBMUMBXXXXD001DNS001
Address:  220.225.236.84
Non-authoritative answer:
Name:    com.co.in
Address:  67.18.199.2
Aliases:  www.yahoo.com.co.in
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 22642639
I also get this IP address when looking up this www.yahoo.com.co.in. Do you know this site http://www.com.co.in/home.html which seems to be the holder of the Aliase for www.yahoo.com.co.in.
0
 

Author Comment

by:amita_amita
ID: 22679994
Sorry for delay,
whatever site address(hotmail,google,usa.net,experts-exchange) lookup gives the same vlaue 67.18.199.2. one more observation if it is ZZZ.com then why reply is comming as ZZZ.com.co.in
I am not able to understand why it is so. is my PC is infected, because every lookup queries gives same result.
can any body explain where is the problem ?

C:\>nslookup www.experts-exchange.com
Server:  MBMUMBXXXXD001DNS002
Address:  220.225.236.85

Non-authoritative answer:
Name:    com.co.in
Address:  67.18.199.2
Aliases:  www.experts-exchange.com.co.in
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 22680065
If you look in DNS do you have wildcard * listed?
0
 

Author Comment

by:amita_amita
ID: 22893963
how will i be able to check wildcard *listed
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 22894898
Look through your DNS console to see if you have an A record listed for this.
0
 

Accepted Solution

by:
amita_amita earned 0 total points
ID: 23705912
Kindly close this question.
Not able to understand resolutio.
now  getting correct resolution automatically.
C:\>nslookup www.yahoo.com
Server:  MBMUMXXXXD001DNS006
Address:  124.124.5.141

Non-authoritative answer:
Name:    www-real.wa1.b.yahoo.com
Address:  87.248.113.14
Aliases:  www.yahoo.com, www.wa1.b.yahoo.com
0

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