inverse mapping problem
Mark_Andrews at isc.org
Mark_Andrews at isc.org
Mon Oct 29 04:55:17 UTC 2001
> Aloha,
>
> I am having a problem and do not think it is me, but maybe someone can
> shed some light on this. I have a client that tries to connect to my ftp
> server and he gets a delay to 1 - 2 minutes before a login prompt comes up.
> I then looked in my /var/log/messages and found that his ip says lame
> server. And when I do a nslookup, it comes back servfail. So I looked in
> the whois database and this is what I come up with: also more info at
> bottom
> ROADRUNNER-HAWAII (NETBLK-ROADRUNNER-HAWAII2)
> 13241 Woodland Park Road
> Herndon, VA 20171
> US
>
> Netname: ROADRUNNER-HAWAII2
> Netblock: 66.91.0.0 - 66.91.111.255
> Maintainer: RRHI
>
> Coordinator:
> ServiceCo LLC (ZS30-ARIN) abuse at rr.com
> 1-703-345-3416
>
> Domain System inverse mapping provided by:
>
> DNS1.RR.COM 24.30.200.3
> DNS2.RR.COM 24.30.201.3
> DNS3.RR.COM 24.30.199.7
> DNS4.RR.COM 65.24.0.172
>
> ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
>
> Record last updated on 13-Aug-2001.
> Database last updated on 27-Oct-2001 03:34:37 EDT.
>
> Now that whole netblck and can't nslookup. about 50 ip addresses
> come back servfail. So I then try another netblock from hawaii.rr.com:
> ROADRUNNER-HAWAII (NETBLK-ROADRUNNER-HAWAII)
> 13241 Woodland Park Road
> Herndon, VA 20171
> US
>
> Netname: ROADRUNNER-HAWAII
> Netblock: 66.8.128.0 - 66.8.255.255
> Maintainer: RRHI
>
> Coordinator:
> ServiceCo LLC (ZS30-ARIN) abuse at rr.com
> 1-703-345-3416
>
> Domain System inverse mapping provided by:
>
> DNS1.RR.COM 24.30.200.3
> DNS2.RR.COM 24.30.201.3
> DNS3.RR.COM 24.30.199.7
> DNS4.RR.COM 65.24.0.172
>
> ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
>
> Record last updated on 14-Jun-2001.
> Database last updated on 27-Oct-2001 03:34:37 EDT.
> Ip addresses in this block I can nslookup with no problem.Could it be that
> they do not have reverse zones in there DNSfor Netblock: 66.91.0.0 -
> 66.91.111.255?Also when I use dig -x 66.91.1.107 (Clients ip) It comes back
> with 107.1.91.66.in-addr.arpa. IN PTRWhy does nslookup fail with
> netblock 66.91.0.0 - 66.91.111.255But dig works. And all other clients that
> connect to my ftp server, everything is fine, no problems reported and also
> no lame servers on there IP's. just that one client.
> ThanksBilly
Well it looks like RoadRunner failed to inform ARIN that they
want a different set of servers to serve 1.91.66.in-addr.arpa.
You sometimes wonder how some ISP's stay in business. Stuff
ups like this drive customers away.
Anyway it's not your fault. It's RoadRunner's.
Mark
; <<>> DiG 8.3 <<>> ns -x @ARROWROOT.ARIN.NET
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 0
;; QUERY SECTION:
;; 1.91.66.in-addr.arpa, type = NS, class = IN
;; AUTHORITY SECTION:
1.91.66.in-addr.arpa. 1D IN NS DNS4.RR.COM.
1.91.66.in-addr.arpa. 1D IN NS DNS1.RR.COM.
1.91.66.in-addr.arpa. 1D IN NS DNS2.RR.COM.
1.91.66.in-addr.arpa. 1D IN NS DNS3.RR.COM.
;; Total query time: 234 msec
;; FROM: drugs.dv.isc.org to SERVER: ARROWROOT.ARIN.NET 198.133.199.110
;; WHEN: Mon Oct 29 15:40:46 2001
;; MSG SIZE sent: 38 rcvd: 120
; <<>> DiG 8.3 <<>> ns 1.91.66.in-addr.arpa @DNS1.RR.COM
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2
;; QUERY SECTION:
;; 1.91.66.in-addr.arpa, type = NS, class = IN
;; ANSWER SECTION:
1.91.66.in-addr.arpa. 1D IN NS dns2.hawaii.rr.com.
1.91.66.in-addr.arpa. 1D IN NS dns1.hawaii.rr.com.
;; ADDITIONAL SECTION:
dns2.hawaii.rr.com. 1H IN A 24.25.227.66
dns1.hawaii.rr.com. 1H IN A 24.25.227.64
;; Total query time: 289 msec
;; FROM: drugs.dv.isc.org to SERVER: DNS1.RR.COM 24.30.200.3
;; WHEN: Mon Oct 29 15:41:01 2001
;; MSG SIZE sent: 38 rcvd: 121
; <<>> DiG 8.3 <<>> ns 1.91.66.in-addr.arpa @dns1.hawaii.rr.com.
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 3
;; QUERY SECTION:
;; 1.91.66.in-addr.arpa, type = NS, class = IN
;; ANSWER SECTION:
1.91.66.in-addr.arpa. 1D IN NS dns2.hawaii.rr.com.
1.91.66.in-addr.arpa. 1D IN NS dns1.hawaii.rr.com.
1.91.66.in-addr.arpa. 1D IN NS ns1.mw.mediaone.net.
;; ADDITIONAL SECTION:
dns2.hawaii.rr.com. 1D IN A 24.25.227.66
dns1.hawaii.rr.com. 1D IN A 24.25.227.64
ns1.mw.mediaone.net. 5h31m4s IN A 24.131.1.8
;; Total query time: 327 msec
;; FROM: drugs.dv.isc.org to SERVER: dns1.hawaii.rr.com. 24.25.227.64
;; WHEN: Mon Oct 29 15:45:26 2001
;; MSG SIZE sent: 38 rcvd: 170
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at isc.org
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