[dns-operations] 答复: about NXDOMAIN under the TLD .ws

Mark Andrews marka at isc.org
Fri Mar 25 22:20:38 UTC 2016


Because the answer came from a cache and that was the best NS RRset
available.

In message <CA+nkc8DXvhvC6vDfLokTomESRuKBPYcW+AFevworzpHZiYieLQ at mail.gmail.com>, Bob Harold writ
es:
> On Wed, Mar 23, 2016 at 10:56 PM, Fred Morris <m3047 at m3047.net> wrote:
> 
> > On Tue, 22 Mar 2016, [gb2312] =E5=BC=A0=E5=9C=A8=E5=B3=B0 wrote:
> > > I just reviewed all TLDs.
> > > The following TLD have wildcards record except the rdata 127.0.53.53.
> > >
> > > *.ph. 299 IN  A       45.79.222.138
> > > *.sy. 21599 IN        A       91.144.20.76
> > > *.ws. 299 IN  A       64.70.19.202
> > > *.=E4=B8=AD=E5=9B=BD. 21599 IN A      218.241.116.40
> > > *.=E4=B8=AD=E5=9C=8B. 21599 IN A      218.241.116.40
> >
> > localhost:~ demeter$ dig does--not-exist.fm a +short
> > localhost:~ demeter$ dig does--not-exist.fm mx +short
> > 1 mail.h-email.net.
> > localhost:~ demeter$ dig \*.fm mx
> >
> > ; <<>> DiG 9.6-ESV-R4-P3 <<>> *.fm mx
> > ;; global options: +cmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47590
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 0
> >
> > ;; QUESTION SECTION:
> > ;*.fm.                          IN      MX
> >
> > ;; ANSWER SECTION:
> > *.fm.                   21591   IN      MX      1 mail.h-email.net.
> >
> > ;; AUTHORITY SECTION:
> > .                       797     IN      NS      a.root-servers.net.
> > .                       797     IN      NS      g.root-servers.net.
> > .                       797     IN      NS      i.root-servers.net.
> > .                       797     IN      NS      c.root-servers.net.
> > .                       797     IN      NS      j.root-servers.net.
> > .                       797     IN      NS      h.root-servers.net.
> > .                       797     IN      NS      d.root-servers.net.
> > .                       797     IN      NS      e.root-servers.net.
> > .                       797     IN      NS      k.root-servers.net.
> > .                       797     IN      NS      f.root-servers.net.
> > .                       797     IN      NS      b.root-servers.net.
> > .                       797     IN      NS      m.root-servers.net.
> > .                       797     IN      NS      l.root-servers.net.
> >
> > ;; Query time: 6 msec
> > ;; SERVER: 10.200.0.33#53(10.200.0.33)
> > ;; WHEN: Wed Mar 23 20:58:48 2016
> > ;; MSG SIZE  rcvd: 262
> >
> > --
> >
> > Fred Morris
> >
> >
> > I don't understand why your "authority" section lists the root servers.  =
> I
> get a different answer:
> 
> $ dig \*.fm mx
> 
> ; <<>> DiG 9.9.5-3ubuntu0.8-Ubuntu <<>> *.fm mx
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15282
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 9
> 
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 4096
> ;; QUESTION SECTION:
> ;*.fm.                IN    MX
> 
> ;; ANSWER SECTION:
> *.fm.            86400    IN    MX    1 mail.h-email.net.
> 
> ;; AUTHORITY SECTION:
> fm.            86376    IN    NS    tld2.ultradns.net.
> fm.            86376    IN    NS    tld4.ultradns.org.
> fm.            86376    IN    NS    tld5.ultradns.info.
> fm.            86376    IN    NS    tld3.ultradns.org.
> fm.            86376    IN    NS    tld1.ultradns.net.
> fm.            86376    IN    NS    tld6.ultradns.co.uk.
> 
> ;; ADDITIONAL SECTION:
> tld5.ultradns.info.    159144    IN    A    192.100.59.11
> tld6.ultradns.co.uk.    159144    IN    A    198.133.199.11
> tld4.ultradns.org.    159144    IN    A    199.7.67.1
> tld4.ultradns.org.    159144    IN    AAAA    2001:502:100e::1
> tld3.ultradns.org.    159144    IN    A    199.7.66.1
> tld2.ultradns.net.    159144    IN    A    204.74.113.1
> tld1.ultradns.net.    159144    IN    A    204.74.112.1
> tld1.ultradns.net.    159144    IN    AAAA    2001:502:d399::1
> 
> ;; Query time: 23 msec
> ;; SERVER: 127.0.1.1#53(127.0.1.1)
> ;; WHEN: Thu Mar 24 09:47:15 EDT 2016
> ;; MSG SIZE  rcvd: 379
> 
> --=20
> Bob Harold
> 
> --001a113e47526d1f5f052ecbb5cd
> Content-Type: text/html; charset=UTF-8
> Content-Transfer-Encoding: quoted-printable
> 
> <div dir=3D"ltr"><br><div class=3D"gmail_extra"><div class=3D"gmail_quote">=
> On Wed, Mar 23, 2016 at 10:56 PM, Fred Morris <span dir=3D"ltr"><<a href=
> =3D"mailto:m3047 at m3047.net" target=3D"_blank">m3047 at m3047.net</a>></span=
> > wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0=
> .8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class=
> =3D"">On Tue, 22 Mar 2016, [gb2312] =E5=BC=A0=E5=9C=A8=E5=B3=B0 wrote:<br>
> > I just reviewed all TLDs.<br>
> > The following TLD have wildcards record except the rdata 127.0.53.53.<=
> br>
> ><br>
> > *.ph. 299 IN=C2=A0 A=C2=A0 =C2=A0 =C2=A0 =C2=A045.79.222.138<br>
> > *.sy. 21599 IN=C2=A0 =C2=A0 =C2=A0 =C2=A0 A=C2=A0 =C2=A0 =C2=A0 =C2=A0=
> 91.144.20.76<br>
> > *.ws. 299 IN=C2=A0 A=C2=A0 =C2=A0 =C2=A0 =C2=A064.70.19.202<br>
> > *.=E4=B8=AD=E5=9B=BD. 21599 IN A=C2=A0 =C2=A0 =C2=A0 218.241.116.40<br=
> >
> > *.=E4=B8=AD=E5=9C=8B. 21599 IN A=C2=A0 =C2=A0 =C2=A0 218.241.116.40<br=
> >
> <br>
> </span>localhost:~ demeter$ dig <a href=3D"http://does--not-exist.fm" rel=
> =3D"noreferrer" target=3D"_blank">does--not-exist.fm</a> a +short<br>
> localhost:~ demeter$ dig <a href=3D"http://does--not-exist.fm" rel=3D"noref=
> errer" target=3D"_blank">does--not-exist.fm</a> mx +short<br>
> 1 <a href=3D"http://mail.h-email.net" rel=3D"noreferrer" target=3D"_blank">=
> mail.h-email.net</a>.<br>
> localhost:~ demeter$ dig \*.fm mx<br>
> <br>
> ; <<>> DiG 9.6-ESV-R4-P3 <<>> *.fm mx<br>
> <span class=3D"">;; global options: +cmd<br>
> ;; Got answer:<br>
> </span>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4759=
> 0<br>
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 0<br>
> <br>
> ;; QUESTION SECTION:<br>
> ;*.fm.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
>  =C2=A0 =C2=A0 =C2=A0 IN=C2=A0 =C2=A0 =C2=A0 MX<br>
> <br>
> ;; ANSWER SECTION:<br>
> *.fm.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A02=
> 1591=C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 MX=C2=A0 =C2=A0 =C2=A0 1 <a href=3D=
> "http://mail.h-email.net" rel=3D"noreferrer" target=3D"_blank">mail.h-email=
> .net</a>.<br>
> <br>
> ;; AUTHORITY SECTION:<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://a.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">a.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://g.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">g.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://i.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">i.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://c.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">c.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://j.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">j.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://h.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">h.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://d.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">d.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://e.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">e.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://k.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">k.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://f.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">f.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://b.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">b.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://m.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">m.root-servers.net</a>.<br>
> .=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
> =A0 =C2=A0797=C2=A0 =C2=A0 =C2=A0IN=C2=A0 =C2=A0 =C2=A0 NS=C2=A0 =C2=A0 =C2=
> =A0 <a href=3D"http://l.root-servers.net" rel=3D"noreferrer" target=3D"_bla=
> nk">l.root-servers.net</a>.<br>
> <br>
> ;; Query time: 6 msec<br>
> ;; SERVER: 10.200.0.33#53(10.200.0.33)<br>
> ;; WHEN: Wed Mar 23 20:58:48 2016<br>
> ;; MSG SIZE=C2=A0 rcvd: 262<br>
> <br>
> --<br>
> <br>
> Fred Morris<br>
> <br><br></blockquote><div>I don't understand why your "authority&q=
> uot; section lists the root servers.=C2=A0 I get a different answer:<br><br=
> >$ dig \*.fm mx<br><br>; <<>> DiG 9.9.5-3ubuntu0.8-Ubuntu <&=
> lt;>> *.fm mx<br>;; global options: +cmd<br>;; Got answer:<br>;; -&gt=
> ;>HEADER<<- opcode: QUERY, status: NOERROR, id: 15282<br>;; flags:=
>  qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 9<br><br>;; OPT P=
> SEUDOSECTION:<br>; EDNS: version: 0, flags:; udp: 4096<br>;; QUESTION SECTI=
> ON:<br>;*.fm.=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=
> =A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0MX<br><br>;; ANSWER SECTION:<br>*.fm.=
> =C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A086400=C2=A0=C2=A0 =
> =C2=A0IN=C2=A0=C2=A0 =C2=A0MX=C2=A0=C2=A0 =C2=A01 <a href=3D"http://mail.h-=
> email.net">mail.h-email.net</a>.<br><br>;; AUTHORITY SECTION:<br>fm.=C2=A0=
> =C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A086376=C2=A0=C2=A0 =C2=A0=
> IN=C2=A0=C2=A0 =C2=A0NS=C2=A0=C2=A0 =C2=A0<a href=3D"http://tld2.ultradns.n=
> et">tld2.ultradns.net</a>.<br>fm.=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=
> =A0=C2=A0 =C2=A086376=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0NS=C2=A0=C2=A0=
>  =C2=A0<a href=3D"http://tld4.ultradns.org">tld4.ultradns.org</a>.<br>fm.=
> =C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A086376=C2=A0=C2=A0 =
> =C2=A0IN=C2=A0=C2=A0 =C2=A0NS=C2=A0=C2=A0 =C2=A0<a href=3D"http://tld5.ultr=
> adns.info">tld5.ultradns.info</a>.<br>fm.=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =
> =C2=A0=C2=A0=C2=A0 =C2=A086376=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0NS=C2=
> =A0=C2=A0 =C2=A0<a href=3D"http://tld3.ultradns.org">tld3.ultradns.org</a>.=
> <br>fm.=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A086376=C2=A0=
> =C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0NS=C2=A0=C2=A0 =C2=A0<a href=3D"http://tl=
> d1.ultradns.net">tld1.ultradns.net</a>.<br>fm.=C2=A0=C2=A0 =C2=A0=C2=A0=C2=
> =A0 =C2=A0=C2=A0=C2=A0 =C2=A086376=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0N=
> S=C2=A0=C2=A0 =C2=A0<a href=3D"http://tld6.ultradns.co.uk">tld6.ultradns.co=
> .uk</a>.<br><br>;; ADDITIONAL SECTION:<br><a href=3D"http://tld5.ultradns.i=
> nfo">tld5.ultradns.info</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=C2=A0 =C2=A0IN=
> =C2=A0=C2=A0 =C2=A0A=C2=A0=C2=A0 =C2=A0192.100.59.11<br><a href=3D"http://t=
> ld6.ultradns.co.uk">tld6.ultradns.co.uk</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=
> =C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0A=C2=A0=C2=A0 =C2=A0198.133.199.11<br><a =
> href=3D"http://tld4.ultradns.org">tld4.ultradns.org</a>.=C2=A0=C2=A0 =C2=A0=
> 159144=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0A=C2=A0=C2=A0 =C2=A0199.7.67.=
> 1<br><a href=3D"http://tld4.ultradns.org">tld4.ultradns.org</a>.=C2=A0=C2=
> =A0 =C2=A0159144=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0AAAA=C2=A0=C2=A0 =
> =C2=A02001:502:100e::1<br><a href=3D"http://tld3.ultradns.org">tld3.ultradn=
> s.org</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0=
> A=C2=A0=C2=A0 =C2=A0199.7.66.1<br><a href=3D"http://tld2.ultradns.net">tld2=
> .ultradns.net</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=C2=A0 =C2=A0IN=C2=A0=C2=
> =A0 =C2=A0A=C2=A0=C2=A0 =C2=A0204.74.113.1<br><a href=3D"http://tld1.ultrad=
> ns.net">tld1.ultradns.net</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=C2=A0 =C2=A0I=
> N=C2=A0=C2=A0 =C2=A0A=C2=A0=C2=A0 =C2=A0204.74.112.1<br><a href=3D"http://t=
> ld1.ultradns.net">tld1.ultradns.net</a>.=C2=A0=C2=A0 =C2=A0159144=C2=A0=C2=
> =A0 =C2=A0IN=C2=A0=C2=A0 =C2=A0AAAA=C2=A0=C2=A0 =C2=A02001:502:d399::1<br><=
> br>;; Query time: 23 msec<br>;; SERVER: 127.0.1.1#53(127.0.1.1)<br>;; WHEN:=
>  Thu Mar 24 09:47:15 EDT 2016<br>;; MSG SIZE=C2=A0 rcvd: 379<br><br>-- <br>=
> </div><div>Bob Harold<br>=C2=A0<br></div></div></div></div>
> 
> --001a113e47526d1f5f052ecbb5cd--
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org



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