Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : Odd DNS issue

[ScottD]

I'm hoping some DNS expert out there can help me figure out what is happening here.

From some DNS lookups, mail.asrcomputer.com doesn't resolve. From others it does.

Here's a sample of what I mean:

# host -a mail.asrcomputer.com
Trying null domain
rcode = 3 (Non-existent domain), ancount=0
Trying domain "dizix.com"
rcode = 3 (Non-existent domain), ancount=0
Trying null domain
rcode = 3 (Non-existent domain), ancount=0
Host not found.

And:

# host -a mail.asrcomputer.com
Trying null domain
rcode = 0 (Success), ancount=1
The following answer is not authoritative:
The following answer is not verified as authentic by the server:
mail.asrcomputer.com 2684 IN A 64.238.111.19
For authoritative answers, see:
asrcomputer.com 2700 IN NS ns1.virtualnile.com
asrcomputer.com 2700 IN NS ns2.virtualnile.com
Additional information:
ns1.virtualnile.com 171884 IN A 64.238.111.28
ns2.virtualnile.com 171884 IN A 64.238.111.27

Am I losing a lug nut?

What do you get?

<<EDIT>>
I should add, this is not a propogation issue unless it is taking several months to propogate

[taz0]

I think you need to increment the serial number and reload the zone. NS2.VIRTUALNILE.com. is not up-to-date.

[ScottD]

Taz,

What drew you to that conclusion? Basically, I have a customer who cannot send email to someone at asrcomputer.com through my mail server, but can do it just fine through their ISP. I am trying to get as much detail as to why this is happening as possible so I can explain the problem, and possibly notify the tech admin at asrcomputer.com that they have a problem.

Thanks for your help!

[taz0]

The problem is at asrcomputer.com, not yours.

% host mail.asrcomputer.com ns2.virtualnile.com
Using domain server:
Name: ns2.virtualnile.com
Address: 64.238.111.27
Aliases:

Host not found.
% host mail.asrcomputer.com ns1.virtualnile.com
Using domain server:
Name: ns1.virtualnile.com
Address: 64.238.111.28
Aliases:

mail.asrcomputer.com has address 64.238.111.19

[ScottD]

Perfect! I learned something new today, thanks very much for your help.