Search Again: Re: Reverse DNS From: Men & Mice Support Date: Friday, February 11, 2005 Time: 4:22:20 pm The query you sent (shown in the Question section of the dig output) asked for A records instead of PTR records. The odd thing is the status. When your server is asked for a PTR record, it changes the status from "NOERROR" to "NXDOMAIN". $ dig 4.208.253.216.in-addr.arpa @dns.hastings.com ptr +norec ; <<>> DiG 9.3.0 <<>> 4.208.253.216.in-addr.arpa @dns.hastings.com ptr +norec ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 44923 ;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;4.208.253.216.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: 253.216.in-addr.arpa. 10356 IN SOA prisoner.iana.org. hostmaster.root-servers.org. 2002040800 1800 900 604800 604800 ;; Query time: 110 msec ;; SERVER: 216.253.208.2#53(dns.hastings.com) ;; WHEN: Fri Feb 11 16:10:17 2005 ;; MSG SIZE rcvd: 121 This is very strange. In fact, if I query it for any record, it returns the PTR record: $ dig 4.208.253.216.in-addr.arpa @dns.hastings.com any +norec ; <<>> DiG 9.3.0 <<>> 4.208.253.216.in-addr.arpa @dns.hastings.com any +norec ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16016 ;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4 ;; QUESTION SECTION: ;4.208.253.216.in-addr.arpa. IN ANY ;; ANSWER SECTION: 4.208.253.216.in-addr.arpa. 86400 IN PTR mail.hastings.com. ;; AUTHORITY SECTION: 208.253.216.in-addr.arpa. 86400 IN NS dns.hastings.com. 208.253.216.in-addr.arpa. 86400 IN NS ns1.espire.net. 208.253.216.in-addr.arpa. 86400 IN NS ns2.espire.net. 208.253.216.in-addr.arpa. 86400 IN NS ns3.espire.net. ;; ADDITIONAL SECTION: dns.hastings.com. 86400 IN A 216.253.208.2 ns1.espire.net. 57387 IN A 207.191.50.10 ns2.espire.net. 57387 IN A 207.191.1.10 ns3.espire.net. 57387 IN A 206.222.97.50 ;; Query time: 140 msec ;; SERVER: 216.253.208.2#53(dns.hastings.com) ;; WHEN: Fri Feb 11 16:10:03 2005 ;; MSG SIZE rcvd: 221 Do you have some sort of stateful firewall between your server and the Internet that might be interfering here? Regardless, this zone isn't delegated to your server, as you suggested. $ host -t ns 208.253.216.in-addr.arpa 208.253.216.in-addr.arpa name server dns2.xspedius.net. 208.253.216.in-addr.arpa name server dns3.xspedius.net. 208.253.216.in-addr.arpa name server dns1.xspedius.net. Chris Buxton Men & Mice - Making DNS Easy At 3:51 PM -0600 2/11/05, Larry Scott Hastings wrote: >I've discovered that my reverse DNS is not working for my mail >server's IP (or any other IP address, for that matter). [I'm >looking forward to pulling out my O'Reilly BIND book when I get >home. But in the meantime...] > >Right now, QuickDNS is generating a reverse zone automatically for >me. From within QuickDNS, everything looks OK to me. Now, I >understand (to some degree) that reverse dns is usually delegated to >one's ISP. BUT, shouldn't my reverse zone work, if I am querying >the DNS server directly/explicitly from within the same local >network? > >I'd like to make sure I have things set up properly in QuickDNS >before I call my ISP for help. > >Here's the dirt... > >In QuickDNS 4, within the zone "208.253.216.in-addr.arpa." I have the line: > >4.208.253.216.in-addr.arpa. IN PTR > mail.hastings.com. ; Automatically generated by QuickDNS > > >From my laptop I query my local dns server: > >dig 4.208.253.216.in-addr.arpa @dns.hastings.com > >And in response I get "ANSWER: 0": > >; <<>> DiG 9.2.2 <<>> 4.208.253.216.in-addr.arpa @dns.hastings.com >;; global options: printcmd >;; Got answer: >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29366 >;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 > >;; QUESTION SECTION: >;4.208.253.216.in-addr.arpa. IN A > >;; AUTHORITY SECTION: >208.253.216.in-addr.arpa. 86400 IN SOA dns.hastings.com. >scott.hastings.com. 2005020902 28800 7200 604800 86400 > >;; Query time: 76 msec >;; SERVER: 216.253.208.2#53(dns.hastings.com) >;; WHEN: Fri Feb 11 15:43:16 2005 >;; MSG SIZE rcvd: 102

Messages In This Thread: Reverse DNS by Warren Michelsen on Oct 30, 1999 at 5:41:00 pm Re: Reverse DNS by Men & Mice Support on Oct 30, 1999 at 6:05:00 pm Re: Reverse DNS by Warren Michelsen on Oct 30, 1999 at 6:32:00 pm Re: Reverse DNS by Men & Mice Support on Oct 30, 1999 at 9:00:00 pm Reverse DNS by Caio James on Jun 29, 2000 at 8:23:23 pm Re: Reverse DNS by Men & Mice Support on Jun 29, 2000 at 11:27:26 pm Re: Reverse DNS by Caio James on Jun 29, 2000 at 11:42:19 pm Re: Reverse DNS by Caio James on Jun 29, 2000 at 11:47:06 pm Re: Reverse DNS by Caio James on Jun 29, 2000 at 11:57:17 pm Re: Reverse DNS by Men & Mice Support on Jun 30, 2000 at 1:25:25 am Re: Reverse DNS by Caio James on Jun 30, 2000 at 1:41:36 am Re: Reverse DNS by Men & Mice Support on Jun 30, 2000 at 1:57:37 am Re: Reverse DNS by Caio James on Jun 30, 2000 at 10:34:32 am Re: Reverse DNS by Global Homes Webmaster on Jun 30, 2000 at 11:32:04 am Re: Reverse DNS by Caio James on Jun 30, 2000 at 11:40:25 am Re: Reverse DNS by Global Homes Webmaster on Jun 30, 2000 at 12:57:28 pm Re: Reverse DNS by Men & Mice Support on Jun 30, 2000 at 4:22:19 pm Re: Reverse DNS by Mark Russon on Jul 1, 2000 at 1:48:56 pm Re: Reverse DNS by Jerry Pasker on Jul 1, 2000 at 3:48:51 pm Re: Reverse DNS by Jerry Pasker on Jul 1, 2000 at 4:03:01 pm Re: Reverse DNS by Men & Mice Support on Jul 2, 2000 at 1:33:42 am Reverse DNS by Paul Didzerekis on May 2, 2001 at 1:53:19 pm Re: Reverse DNS by Global Homes Webmaster on May 2, 2001 at 3:15:53 pm Re: Reverse DNS by Jim Grisham on May 3, 2001 at 5:47:38 pm Re: Reverse DNS by Global Homes Webmaster on May 3, 2001 at 6:09:12 pm Re: Reverse DNS by Men & Mice Support on May 3, 2001 at 7:08:22 pm Reverse DNS by Andrew Schmiechen on Jun 21, 2001 at 1:28:00 pm Re: Reverse DNS by Global Homes Webmaster on Jun 21, 2001 at 3:12:52 pm reverse DNS by Paul Didzerekis on Jun 21, 2001 at 3:43:12 pm Re: reverse DNS by Men & Mice Support on Jun 21, 2001 at 10:14:41 pm Re: reverse DNS by Paul Didzerekis on Jun 22, 2001 at 11:33:50 am Reverse DNS by Dan Tappin on Dec 4, 2001 at 8:01:31 am Re: Reverse DNS by Men & Mice Support on Dec 4, 2001 at 10:22:14 am Re: Reverse DNS by Robert Ameeti on Dec 4, 2001 at 10:32:07 pm Re: Reverse DNS by Men & Mice Support on Dec 5, 2001 at 1:01:47 am Re: Reverse DNS by Piero Marchetti on Feb 20, 2002 at 1:00:49 pm Re: Reverse DNS by Men & Mice Support on Feb 20, 2002 at 2:11:27 pm Re: Reverse DNS by Piero Marchetti on Feb 21, 2002 at 1:48:25 am Re: Reverse DNS by Men & Mice Support on Feb 21, 2002 at 12:04:54 pm Re: Reverse DNS by Piero Marchetti on Feb 22, 2002 at 4:22:28 am Re: Reverse DNS by Men & Mice Support on Feb 22, 2002 at 12:46:12 pm Re: Reverse DNS by Piero Marchetti on Feb 26, 2002 at 3:24:25 am reverse dns by Steve Nowacki on Jul 29, 2003 at 10:02:19 am Re: reverse dns by Len Conrad on Jul 29, 2003 at 10:16:15 am Re: reverse dns by Steve Nowacki on Jul 30, 2003 at 6:38:26 am Re: reverse dns by Len Conrad on Jul 30, 2003 at 7:45:23 am Reverse DNS by Larry Scott Hastings on Feb 11, 2005 at 1:52:38 pm Re: Reverse DNS by Men & Mice Support on Feb 11, 2005 at 4:22:20 pm Re: Reverse DNS by Larry Scott Hastings on Feb 14, 2005 at 10:40:02 am Re: Reverse DNS by admin@gippy.net on Feb 14, 2005 at 10:48:03 am Re: Reverse DNS by Larry Scott Hastings on Feb 14, 2005 at 1:14:07 pm Re: Reverse DNS by Men & Mice Support on Feb 15, 2005 at 7:09:31 am Re: Reverse DNS by Larry Scott Hastings on Feb 18, 2005 at 11:43:51 am Re: Reverse DNS by Men & Mice Support on Feb 19, 2005 at 8:13:59 am Re: Reverse DNS by Larry Scott Hastings on Feb 21, 2005 at 10:37:27 am Re: Reverse DNS by Men & Mice Support on Feb 21, 2005 at 2:47:51 pm Re: Reverse DNS by Larry Scott Hastings on Feb 23, 2005 at 1:29:40 pm Re: Reverse DNS by Men & Mice Support on Feb 23, 2005 at 3:50:29 pm Re: Reverse DNS by Michael Wise on Feb 23, 2005 at 3:55:11 pm