DNS .US outage

Church, Chuck cchurch at netcogov.com
Thu Jul 7 12:25:20 UTC 2005


 Thanks for your help, guys.  Didn't know dig existed for windows.
Several ISPs (charter.net, alter.net) are choking on .us queries right
now, but AT&T's name server is working ok for me.  Here's one failing on
.us, but .com works fine:

C:\temp\dnstools>dig @24.197.96.16 com NS

; <<>> DiG 9.3.1 <<>> @24.197.96.16 com NS
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1940
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;com.                           IN      NS

;; ANSWER SECTION:
com.                    172800  IN      NS      d.gtld-servers.net.
com.                    172800  IN      NS      e.gtld-servers.net.
com.                    172800  IN      NS      f.gtld-servers.net.
com.                    172800  IN      NS      g.gtld-servers.net.
com.                    172800  IN      NS      h.gtld-servers.net.
com.                    172800  IN      NS      i.gtld-servers.net.
com.                    172800  IN      NS      j.gtld-servers.net.
com.                    172800  IN      NS      k.gtld-servers.net.
com.                    172800  IN      NS      l.gtld-servers.net.
com.                    172800  IN      NS      m.gtld-servers.net.
com.                    172800  IN      NS      a.gtld-servers.net.
com.                    172800  IN      NS      b.gtld-servers.net.
com.                    172800  IN      NS      c.gtld-servers.net.

;; Query time: 4046 msec
;; SERVER: 24.197.96.16#53(24.197.96.16)
;; WHEN: Thu Jul 07 08:20:35 2005
;; MSG SIZE  rcvd: 245


C:\temp\dnstools>dig @24.197.96.16 us NS

; <<>> DiG 9.3.1 <<>> @24.197.96.16 us NS
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1682
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;us.                            IN      NS

;; Query time: 31 msec
;; SERVER: 24.197.96.16#53(24.197.96.16)
;; WHEN: Thu Jul 07 08:20:50 2005
;; MSG SIZE  rcvd: 20


	Is it possible that one of the authoritative servers for .us is
unreachable/down at the moment, at least from name server 24.197.96.16's
point of view?   198.6.1.2 gives similar results.

Thanks again,


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch at netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D


-----Original Message-----
From: Jeroen Massar [mailto:jeroen at unfix.org] 
Sent: Thursday, July 07, 2005 4:10 AM
To: Randy Bush
Cc: Church, Chuck; nanog at merit.edu
Subject: RE: DNS .US outage

On Wed, 2005-07-06 at 19:19 -1000, Randy Bush wrote:
> > Thanks.  Didn't have any *NIX boxes laying around to 'dig' any
deeper.
> 
> i believe even windoze has dig at the command line, though i don't
> know in what directory it lies.

The web directory:
http://www.isc.org/index.pl?/sw/bind/bind9.php

or the ftp directory:
ftp://ftp.isc.org/isc/bind/contrib/ntbind-9.3.1/BIND9.3.1.zip

What is also very useful are the following two websites, so people can
click around a bit and get nice pictures making everything crystalclear
for them:

DNSDoctor (which even supports IPv6 :)
http://demo.dnsdoctor.org/

And of course DNS report:
http://www.dnsreport.com/

Greets,
 Jeroen




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