Two days ago I obtained domain 44rf.net, for the sole purpose of
supporting amateurs on 44.x.x.x which need more subdomain
support than ampr.org provides (ie, none; Brian Kantor will
not allow NS records in ampr.org). It's trivial to allow subdomains
of 44rf.net which users can self-manage, without screwing up
the parent domain (volunteers/testers welcome). And, with the use
of stub zones, I support (present tense) referrals to ampr.org,
hamwan.net, and other domains in a situation where the root servers
are not available. Eg:
>dig @ns1.ae7q.ampr.org
db0bi.ampr.org
; <<>> DiG 9.2.4 <<>>
@ns1.ae7q.ampr.org
db0bi.ampr.org
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status:
NOERROR, id: 55750
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 7,
ADDITIONAL: 10
;; QUESTION SECTION:
;db0bi.ampr.org. IN A
;; ANSWER SECTION:
db0bi.ampr.org. 3568 IN A
44.225.61.14
;; AUTHORITY SECTION:
ampr.org. 3568 IN NS
hamradio.ucsd.edu.
ampr.org. 3568 IN NS
ns0.comgw.net.
ampr.org. 3568 IN NS
ns1.defaultroute.net.
ampr.org. 3568 IN NS
ns2.threshinc.com.
ampr.org. 3568 IN NS
ampr.org.
ampr.org. 3568 IN NS
munnari.OZ.AU.
ampr.org. 3568 IN NS
ampr-dns.in-berlin.de.
;; ADDITIONAL SECTION:
ns1.defaultroute.net. 172764 IN A
74.120.14.69
ns2.threshinc.com. 3564 IN A
192.41.222.8
ns2.threshinc.com. 172764 IN AAAA
2604:5000:0:2::2
ampr.org. 3568 IN A
44.0.0.1
munnari.OZ.AU. 14365 IN A
202.29.151.3
munnari.OZ.AU. 86364 IN AAAA
2001:3c8:9007:1::21
munnari.OZ.AU. 86364 IN AAAA
2001:3c8:9009:181::2
ampr-dns.in-berlin.de. 864 IN A
192.109.42.4
ampr-dns.in-berlin.de. 864 IN AAAA
2a01:238:4073:e600::1
hamradio.ucsd.edu. 43164 IN A
169.228.66.6
;; Query time: 253 msec
;; SERVER: 44.24.240.173#53(44.24.240.173)
;; WHEN: Thu Apr 10 20:10:06 2014
;; MSG SIZE rcvd: 452
>dig @ns1.ae7q.ampr.org a.ns.hamwan.net
; <<>> DiG 9.2.4 <<>>
@ns1.ae7q.ampr.org a.ns.hamwan.net
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status:
NOERROR, id: 46457
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2,
ADDITIONAL: 0
;; QUESTION SECTION:
;a.ns.hamwan.net. IN A
;; ANSWER SECTION:
a.ns.hamwan.net. 3600 IN A
44.24.244.2
;; AUTHORITY SECTION:
hamwan.net. 172800 IN NS
a.ns.hamwan.net.
hamwan.net. 172800 IN NS
b.ns.hamwan.net.
;; Query time: 499 msec
;; SERVER: 44.24.240.173#53(44.24.240.173)
;; WHEN: Thu Apr 10 20:31:47 2014
;; MSG SIZE rcvd: 79
However, notice what happens when I access a domain for which I do not
have a stub zone declaration:
>dig @ns1.ae7q.ampr.org
www.hamwan.org
; <<>> DiG 9.2.4 <<>>
@ns1.ae7q.ampr.org www.hamwan.org
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR,
id: 24283
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 13,
ADDITIONAL: 0
;; QUESTION SECTION:
;www.hamwan.org. IN A
;; AUTHORITY SECTION:
. 518400 IN NS
I.ROOT-SERVERS.NET.
. 518400 IN NS
J.ROOT-SERVERS.NET.
. 518400 IN NS
K.ROOT-SERVERS.NET.
. 518400 IN NS
L.ROOT-SERVERS.NET.
. 518400 IN NS
M.ROOT-SERVERS.NET.
. 518400 IN NS
A.ROOT-SERVERS.NET.
. 518400 IN NS
B.ROOT-SERVERS.NET.
. 518400 IN NS
C.ROOT-SERVERS.NET.
. 518400 IN NS
D.ROOT-SERVERS.NET.
. 518400 IN NS
E.ROOT-SERVERS.NET.
. 518400 IN NS
F.ROOT-SERVERS.NET.
. 518400 IN NS
G.ROOT-SERVERS.NET.
. 518400 IN NS
H.ROOT-SERVERS.NET.
;; Query time: 258 msec
;; SERVER: 44.24.240.173#53(44.24.240.173)
;; WHEN: Thu Apr 10 22:11:09 2014
;; MSG SIZE rcvd: 243
That is, ns1.ae7q.ampr.org does not function as a general-purpose
recursive DNS server.
Now, if someone else is already doing this ... let me know.