nanog mailing list archives
Re: Re: Root DNS Server Issues?
From: John Neiberger <neiby () ureach com>
Date: Tue, 1 Oct 2002 20:07:57 -0400
Forgive me for being a DNS clunkhead. <g> I honestly don't know much about it, but I thought I'd post this to the list because it did appear to be a problem with the root servers, which would be A Bad Thing (tm). Probable dumb question: if I do an nslookup from a desktop directed at a root server, should the name eventually resolve? Or, is a request to a root server from our DNS server a different kind of request? I have a feeling it is and that I'm barking up the wrong tree. That might explain why an nslookup directed at someone else's name server is working. Still, that would lead us back to the original problem. Our DNS server can't communicate with the root servers. Hmm.. Again, I apologize for being a total noob at this. I believe that I'm misunderstanding the symptoms and using the wrong tools to troubleshoot! Thanks to all, John ---- On Tue, 1 Oct 2002, John M. Brown (john () chagresventures com) wrote:
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 8differentproviders. 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 Neibergerwrote:We seem to be getting name resolution errors when we
query
anyof the root servers, and this just started a hour or so
ago.
Anyone else noticing a problem? John
Current thread:
- Re: Root DNS Server Issues?, (continued)
- Re: Root DNS Server Issues? Sean Donelan (Oct 01)
- Re: Root DNS Server Issues? John M. Brown (Oct 01)
- Re: Re: Root DNS Server Issues? John Neiberger (Oct 01)
- Re: Re: Root DNS Server Issues? David Van Duzer (Oct 01)
- Re: Re: Root DNS Server Issues? John M. Brown (Oct 01)
- Re: Root DNS Server Issues? Rodney Joffe (Oct 01)
- Re: Root DNS Server Issues? Valdis . Kletnieks (Oct 01)
- Re: Root DNS Server Issues? John M. Brown (Oct 01)
- Re: Re: Root DNS Server Issues? Adam McKenna (Oct 01)
- Re: Re: Root DNS Server Issues? John M. Brown (Oct 01)