Tracing to ns0.is[a]

208.88.224.54 (208.88.224.54)
 |\___ ISGATE.is
[is] (193.4.58.51)
 |\___ SUNIC.SUNET.SE
[is] (2001:06b0:0007:0000:0000:0000:0000:0002) *
 |\___ SUNIC.SUNET.SE
[is] (192.36.125.2)
 |\___ DURINN.RHNET.is
[is] (130.208.16.20) *
 |\___ NS-IS.RIPE.NET
[is] (193.0.12.102)
 |\___ NS-IS.RIPE.NET
[is] (2001:0610:0240:0000:0053:00cc:0012:0102) *
 |\___ SNS-PB.ISC.ORG
[is] (2001:0500:002e:0000:0000:0000:0000:0001) *
 |\___ SNS-PB.ISC.ORG
[is] (192.5.4.1)
 |\___ SAB.ISNIC.is
[is] (194.146.106.58)
  \___ NS4.TELE.DK
[is] (195.41.46.78)

QUESTION SECTION:
ns0.is.		IN	ANY

AUTHORITY SECTION:
is.		1800	IN	SOA	isgate.is.
hostmaster.isnic.is.
2010021520 7200 7200 4233600 1800

Query time: 28 msec
SERVER: secureserver#53(secureserver)
WHEN: Mon Feb 15 12:07:57 2010
MSG SIZE  rcvd: 84

[Querying whois.isnic.is]
[whois.isnic.is]
% This is the ISNIC Whois server.
%
% Rights restricted by copyright.
% See http: /  / isnic.is
/ copyright.php

%
% No entries found for query "ns0.is".

Starting zone checks
for ns0.is

Checking zone
name

Checking existence of
zone

### Fatal
error: ns0.is
doesn't exist