nanog mailing list archives

Re: Re: Root DNS Server Issues?


From: "John M. Brown" <john () chagresventures com>
Date: Tue, 1 Oct 2002 16:56:06 -0700


Root servers don't resolve names other than the TLD's.

OTW they don't have data for www.yahoo.com    only for  .com
which will point you towards the gTLD servers (listed below)
which will point you towards Yahoo's name servers.

What names are you trying to lookup ?

John Brown
Le Geek


On Tue, Oct 01, 2002 at 07:46:00PM -0400, John Neiberger wrote:
We're getting responses from the root servers, the names just 
aren't resolving.  From a windows NT machine the error is "Non-
existent Domain".  

Ah, I just noticed something.  The packet length for the DNS 
response is supposed to be 510 bytes but it's being truncated 
to 128.  What the heck would cause that??  

John

---- On Tue, 1 Oct 2002, John M. Brown 
(john () chagresventures com) wrote:



Here is for L, F also seems to reply.  Tested from 8 different
places on the net.  OTW Transit splay on the test was 8 
different
providers.



Can you give a sample of the "errors" you are seeing?

Got a sample DIG line ??

John Brown
Le Geek



%dig @l.root-servers.net com ns
 
; <<>> DiG 8.3 <<>> @l.root-servers.net com ns
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, 
ADDITIONAL: 13
;; QUERY SECTION:
;;      com, type = NS, class = IN
 
;; ANSWER SECTION:
com.                    2D IN NS        L.GTLD-SERVERS.NET.
com.                    2D IN NS        F.GTLD-SERVERS.NET.
com.                    2D IN NS        J.GTLD-SERVERS.NET.
com.                    2D IN NS        K.GTLD-SERVERS.NET.
com.                    2D IN NS        E.GTLD-SERVERS.NET.
com.                    2D IN NS        M.GTLD-SERVERS.NET.
com.                    2D IN NS        A.GTLD-SERVERS.NET.
com.                    2D IN NS        G.GTLD-SERVERS.NET.
com.                    2D IN NS        H.GTLD-SERVERS.NET.
com.                    2D IN NS        C.GTLD-SERVERS.NET.
com.                    2D IN NS        I.GTLD-SERVERS.NET.
com.                    2D IN NS        B.GTLD-SERVERS.NET.
com.                    2D IN NS        D.GTLD-SERVERS.NET.
 
;; ADDITIONAL SECTION:
L.GTLD-SERVERS.NET.     2D IN A         192.41.162.30
F.GTLD-SERVERS.NET.     2D IN A         192.35.51.30
J.GTLD-SERVERS.NET.     2D IN A         192.48.79.30
K.GTLD-SERVERS.NET.     2D IN A         192.52.178.30
E.GTLD-SERVERS.NET.     2D IN A         192.12.94.30
M.GTLD-SERVERS.NET.     2D IN A         192.55.83.30
A.GTLD-SERVERS.NET.     2D IN A         192.5.6.30
G.GTLD-SERVERS.NET.     2D IN A         192.42.93.30
H.GTLD-SERVERS.NET.     2D IN A         192.54.112.30
C.GTLD-SERVERS.NET.     2D IN A         192.26.92.30
I.GTLD-SERVERS.NET.     2D IN A         192.43.172.30
B.GTLD-SERVERS.NET.     2D IN A         192.33.14.30
D.GTLD-SERVERS.NET.     2D IN A         192.31.80.30
 
;; Total query time: 89 msec
;; FROM: jedi.staff.chagres.net to SERVER: l.root-
servers.net  198.32.64.12
;; WHEN: Tue Oct  1 17:29:36 2002
;; MSG SIZE  sent: 21  rcvd: 453
 
%
On Tue, Oct 01, 2002 at 07:08:37PM -0400, John Neiberger 
wrote:

We seem to be getting name resolution errors when we query 
any 
of the root servers, and this just started a hour or so ago.

Anyone else noticing a problem?

John





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