Check that www.loc.gov exists for IPv4 in case we have a typo on the domain name. Use dig to query the local name server (::1).


; <<>> DiG 9.4.1-P1 <<>> +trace +all loc.gov soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1957
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			337225	IN	NS	j.root-servers.net.
.			337225	IN	NS	l.root-servers.net.
.			337225	IN	NS	i.root-servers.net.
.			337225	IN	NS	m.root-servers.net.
.			337225	IN	NS	a.root-servers.net.
.			337225	IN	NS	h.root-servers.net.
.			337225	IN	NS	g.root-servers.net.
.			337225	IN	NS	b.root-servers.net.
.			337225	IN	NS	e.root-servers.net.
.			337225	IN	NS	c.root-servers.net.
.			337225	IN	NS	d.root-servers.net.
.			337225	IN	NS	k.root-servers.net.
.			337225	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	206548	IN	A	198.41.0.4
a.root-servers.net.	206548	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	164812	IN	A	192.228.79.201
c.root-servers.net.	552596	IN	A	192.33.4.12
d.root-servers.net.	510945	IN	A	128.8.10.90
d.root-servers.net.	510945	IN	AAAA	2001:500:2d::d
e.root-servers.net.	162132	IN	A	192.203.230.10
f.root-servers.net.	207419	IN	A	192.5.5.241
f.root-servers.net.	512295	IN	AAAA	2001:500:2f::f
g.root-servers.net.	208083	IN	A	192.112.36.4
h.root-servers.net.	165121	IN	A	128.63.2.53
h.root-servers.net.	165121	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	206655	IN	A	192.36.148.17
i.root-servers.net.	206655	IN	AAAA	2001:7fe::53

;; Query time: 11 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 04:37:36 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1622
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;loc.gov.			IN	SOA

;; AUTHORITY SECTION:
gov.			172800	IN	NS	b.gov-servers.net.
gov.			172800	IN	NS	a.gov-servers.net.

;; ADDITIONAL SECTION:
a.gov-servers.net.	172800	IN	A	69.36.157.30
a.gov-servers.net.	172800	IN	AAAA	2001:500:4431::2:30
b.gov-servers.net.	172800	IN	A	209.112.123.30

;; Query time: 133 msec
;; SERVER: 2001:503:ba3e::2:30#53(a.root-servers.net)
;; WHEN: Mon May 21 04:37:36 2012
;; MSG SIZE  rcvd: 132

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1949
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;loc.gov.			IN	SOA

;; AUTHORITY SECTION:
loc.gov.		86400	IN	NS	ns21.loc.gov.
loc.gov.		86400	IN	NS	ns23.loc.gov.

;; ADDITIONAL SECTION:
ns21.loc.gov.		86400	IN	A	140.147.32.166
ns23.loc.gov.		86400	IN	A	140.147.239.150

;; Query time: 251 msec
;; SERVER: 2001:500:4431::2:30#53(a.gov-servers.net)
;; WHEN: Mon May 21 04:37:36 2012
;; MSG SIZE  rcvd: 95

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1921
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;loc.gov.			IN	SOA

;; ANSWER SECTION:
loc.gov.		900	IN	SOA	ns10.loc.gov. root.rs1.loc.gov. 2012030342 10800 3600 2419200 900

;; Query time: 246 msec
;; SERVER: 140.147.239.150#53(ns23.loc.gov)
;; WHEN: Mon May 21 04:37:37 2012
;; MSG SIZE  rcvd: 75

HTTP

Looking for CNAME of www.loc.gov
Checking if there is a AAAA for www.loc.gov ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.loc.gov aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 831
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.loc.gov.			IN	AAAA

;; ANSWER SECTION:
www.loc.gov.		899	IN	CNAME	rs7.loc.gov.

;; AUTHORITY SECTION:
loc.gov.		900	IN	SOA	ns10.loc.gov. root.rs1.loc.gov. 2012030342 10800 3600 2419200 900

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 04:37:38 2012
;; MSG SIZE  rcvd: 97

Checking other options ... failed too.

SMTP

MX 5 pps2b.loc.gov
Looking for AAAA on pps2b.loc.gov
MX 5 pps2.loc.gov
Looking for AAAA on pps2.loc.gov

DNS

Looking for AAAA of NS ns23.loc.gov
No AAAA record for ns23.loc.gov
Looking for AAAA of NS ns21.loc.gov
No AAAA record for ns21.loc.gov

NTP

Looking for an A record for ntp.loc.gov
Looking for an A record for clock.loc.gov
Looking for an A record for time.loc.gov
Looking for an A record for chime.loc.gov

XMPP

Looking for a SRV record for _xmpp-client._tcp.loc.gov
Looking for a SRV record for _xmpp-server._tcp.loc.gov

Last Updated: Sun May 20 19:07:42 2012 UTC