forwarding problem
Hulman, Patrick (CCI-Atlanta)
Patrick.Hulman at cox.com
Tue Oct 15 18:50:09 UTC 2002
I'm getting intermittent forwarding for my reverse dns. I'm using bind =
8.3.3 on solaris 8.
Locally, the names will resovle correctly using nslookup, not always the =
case with dig. =20
Here is my portion of my named.conf file
zone "227.14.68.in-addr.arpa" {
type forward;
forwarders { 68.99.120.55; 68.99.120.48; };
};
zone "228.14.68.in-addr.arpa" {
type forward;
forwarders { 68.99.120.55; 68.99.120.48; };
};
There are no master forwarding statements
here are the nslookup/dig results
First I wanted to check to see how other dns servers would get results. =
So I followed page 288 of Dns and Bind and got the following
Default Server: localhost
Address: 127.0.0.1
> set nosearch
> set norec
> 68.14.228.22
Server: localhost
Address: 127.0.0.1
Authoritative answers can be found from:
228.14.68.in-addr.arpa nameserver =3D ns1.coxmail.com
228.14.68.in-addr.arpa nameserver =3D ns2.coxmail.com
ns1.coxmail.com internet address =3D 68.99.120.55
ns2.coxmail.com internet address =3D 68.99.120.48
Nothing unexpected. So I tried another.
> 68.14.227.222
Server: localhost
Address: 127.0.0.1
Authoritative answers can be found from:
68.in-addr.arpa nameserver =3D ARROWROOT.ARIN.NET
68.in-addr.arpa nameserver =3D BUCHU.ARIN.NET
68.in-addr.arpa nameserver =3D CHIA.ARIN.NET
68.in-addr.arpa nameserver =3D DILL.ARIN.NET
68.in-addr.arpa nameserver =3D EPAZOTE.ARIN.NET
68.in-addr.arpa nameserver =3D FIGWORT.ARIN.NET
68.in-addr.arpa nameserver =3D GINSENG.ARIN.NET
68.in-addr.arpa nameserver =3D HENNA.ARIN.NET
68.in-addr.arpa nameserver =3D INDIGO.ARIN.NET
ARROWROOT.ARIN.NET internet address =3D 198.133.199.110
BUCHU.ARIN.NET internet address =3D 192.100.59.110
CHIA.ARIN.NET internet address =3D 192.5.6.32
DILL.ARIN.NET internet address =3D 192.35.51.32
EPAZOTE.ARIN.NET internet address =3D 192.41.162.32
FIGWORT.ARIN.NET internet address =3D 192.42.93.32
GINSENG.ARIN.NET internet address =3D 192.33.14.32
HENNA.ARIN.NET internet address =3D 192.26.92.32
INDIGO.ARIN.NET internet address =3D 192.31.80.32
*** No address (A) records available for 68.14.227.222
So why did i get this result?
I did a dig to see what it got.
; <<>> DiG 8.3 <<>> 68.14.227.222
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;; 68.14.227.222, type =3D A, class =3D IN
;; Total query time: 8 msec
;; FROM: fed1nses to SERVER: default -- 127.0.0.1
;; WHEN: Tue Oct 15 13:55:02 2002
;; MSG SIZE sent: 31 rcvd: 31
then i did a nslookup
nslookup
Default Server: localhost
Address: 127.0.0.1
> 68.14.227.222
Server: localhost
Address: 127.0.0.1
Name: wsip68-14-227-222.ph.ph.cox.net
Address: 68.14.227.222
and redid the dig
> dig 68.14.227.222
; <<>> DiG 8.3 <<>> 68.14.227.222
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; 68.14.227.222, type =3D A, class =3D IN
;; AUTHORITY SECTION:
. 3H IN SOA A.ROOT-SERVERS.NET. =
NSTLD.VERISIGN-GRS.COM. (
2002101500 ; serial
30M ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
;; Total query time: 8 msec
;; FROM: fed1nses to SERVER: default -- 127.0.0.1
;; WHEN: Tue Oct 15 13:55:21 2002
;; MSG SIZE sent: 31 rcvd: 106
i did a dump of the db and see the following
; 227.14.68.in-addr.arpa (type 5, class 1, source Nil)
; time=3D0, lastupdate=3D0, serial=3D0,
; refresh=3D0, retry=3D0, expire=3D0, minimum=3D0
; ftime=3D0, xaddrcnt=3D0, state=3D80040, pid=3D0
; 228.14.68.in-addr.arpa (type 5, class 1, source Nil)
; time=3D0, lastupdate=3D0, serial=3D0,
; refresh=3D0, retry=3D0, expire=3D0, minimum=3D0
; ftime=3D0, xaddrcnt=3D0, state=3D80040, pid=3D0
So the question is why aren't my machines forwarding to others =
correctly? Did I stumble on a bug or am I misconfiguring?
patrick
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