Search Again: Re: DNS problems with e-mail From: Men & Mice Support Date: Monday, December 20, 2004 Time: 9:14:43 am That's because one of these servers allows recursion for your host, and the other does not. Again, look for the "ra" flag in the response. Chris Buxton Men & Mice - Making DNS Easy At 8:14 AM -0600 12/20/04, Alan Ordway wrote: >Here is another example from verizon.net. One name server resolves, >but the other doesn't??? > >hydra:~ aordway$ dig ihmc.us @ns1.verizon.net > >; <<>> DiG 9.2.2 <<>> ihmc.us @ns1.verizon.net >;; global options: printcmd >;; Got answer: >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15672 >;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0 > >;; QUESTION SECTION: >;ihmc.us. IN A > >;; ANSWER SECTION: >ihmc.us. 86023 IN A 65.212.118.136 > >;; AUTHORITY SECTION: >ihmc.us. 86023 IN NS ns2.ihmc.us. >ihmc.us. 86023 IN NS ns.ihmc.us. > >;; Query time: 43 msec >;; SERVER: 199.45.32.40#53(ns1.verizon.net) >;; WHEN: Mon Dec 20 08:11:28 2004 >;; MSG SIZE rcvd: 76 > >hydra:~ aordway$ dig ihmc.us @ns2.verizon.net > >; <<>> DiG 9.2.2 <<>> ihmc.us @ns2.verizon.net >;; global options: printcmd >;; Got answer: >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48421 >;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 0 > >;; QUESTION SECTION: >;ihmc.us. IN A > >;; AUTHORITY SECTION: >. 3600000 IN NS D.ROOT-SERVERS.NET. >. 3600000 IN NS E.ROOT-SERVERS.NET. >. 3600000 IN NS F.ROOT-SERVERS.NET. >. 3600000 IN NS G.ROOT-SERVERS.NET. >. 3600000 IN NS H.ROOT-SERVERS.NET. >. 3600000 IN NS I.ROOT-SERVERS.NET. >. 3600000 IN NS J.ROOT-SERVERS.NET. >. 3600000 IN NS K.ROOT-SERVERS.NET. >. 3600000 IN NS L.ROOT-SERVERS.NET. >. 3600000 IN NS M.ROOT-SERVERS.NET. >. 3600000 IN NS A.ROOT-SERVERS.NET. >. 3600000 IN NS B.ROOT-SERVERS.NET. >. 3600000 IN NS C.ROOT-SERVERS.NET. > >;; Query time: 50 msec >;; SERVER: 151.203.0.86#53(ns2.verizon.net) >;; WHEN: Mon Dec 20 08:11:17 2004 >;; MSG SIZE rcvd: 236 > >-- >Alan Ordway > >On Dec 20, 2004, at 8:08 AM, Alan Ordway wrote: > >>I seem to be having a problem with some e-mail servers rejecting >>mail from us because their mail server is saying domain not found. >>I am able to replicate the problem, but I don't know the cause. For >>example if I do a 'dig @ns.purdue.edu ihmc.us' I get >>; <<>> DiG 9.2.2 <<>> @ns.purdue.edu ihmc.us >>;; global options: printcmd >>;; Got answer: >>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48922 >>;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 1 >> >>;; QUESTION SECTION: >>;ihmc.us. IN A >> >>;; AUTHORITY SECTION: >>. 324791 IN NS H.ROOT-SERVERS.NET. >>. 324791 IN NS I.ROOT-SERVERS.NET. >>. 324791 IN NS J.ROOT-SERVERS.NET. >>. 324791 IN NS K.ROOT-SERVERS.NET. >>. 324791 IN NS L.ROOT-SERVERS.NET. >>. 324791 IN NS M.ROOT-SERVERS.NET. >>. 324791 IN NS A.ROOT-SERVERS.NET. >>. 324791 IN NS B.ROOT-SERVERS.NET. >>. 324791 IN NS C.ROOT-SERVERS.NET. >>. 324791 IN NS D.ROOT-SERVERS.NET. >>. 324791 IN NS E.ROOT-SERVERS.NET. >>. 324791 IN NS F.ROOT-SERVERS.NET. >>. 324791 IN NS G.ROOT-SERVERS.NET. >> >>;; ADDITIONAL SECTION: >>J.ROOT-SERVERS.NET. 411191 IN A 192.58.128.30 >> >>;; Query time: 48 msec >>;; SERVER: 128.210.11.5#53(ns.purdue.edu) >>;; WHEN: Mon Dec 20 08:01:55 2004 >>;; MSG SIZE rcvd: 252 >> >>However, if I do a >>dig @ns.purdue.edu ihmc.us +trace >> >>; <<>> DiG 9.2.2 <<>> @ns.purdue.edu ihmc.us +trace >>;; global options: printcmd >>. 324478 IN NS K.ROOT-SERVERS.NET. >>. 324478 IN NS L.ROOT-SERVERS.NET. >>. 324478 IN NS M.ROOT-SERVERS.NET. >>. 324478 IN NS A.ROOT-SERVERS.NET. >>. 324478 IN NS B.ROOT-SERVERS.NET. >>. 324478 IN NS C.ROOT-SERVERS.NET. >>. 324478 IN NS D.ROOT-SERVERS.NET. >>. 324478 IN NS E.ROOT-SERVERS.NET. >>. 324478 IN NS F.ROOT-SERVERS.NET. >>. 324478 IN NS G.ROOT-SERVERS.NET. >>. 324478 IN NS H.ROOT-SERVERS.NET. >>. 324478 IN NS I.ROOT-SERVERS.NET. >>. 324478 IN NS J.ROOT-SERVERS.NET. >>;; Received 244 bytes from 128.210.11.5#53(ns.purdue.edu) in 46 ms >> >>us. 172800 IN NS a.gtld.biz. >>us. 172800 IN NS b.gtld.biz. >>us. 172800 IN NS c.gtld.biz. >>;; Received 129 bytes from 193.0.14.129#53(K.ROOT-SERVERS.NET) in 116 ms >> >>ihmc.us. 900 IN NS NS.ihmc.us. >>ihmc.us. 900 IN NS NS2.ihmc.us. >>;; Received 92 bytes from 209.173.53.162#53(a.gtld.biz) in 44 ms >> >>ihmc.us. 86400 IN A 65.212.118.136 >>ihmc.us. 86400 IN NS ns.ihmc.us. >>ihmc.us. 86400 IN NS ns2.ihmc.us. >>;; Received 108 bytes from 65.212.118.10#53(NS.ihmc.us) in 1 ms >> >>I get our IP address. Any ideas? >>-- >>Alan Ordway >>Florida Institute for Human & Machine Cognition >>850-202-4455

Messages In This Thread: DNS problems with e-mail by Alan Ordway on Dec 20, 2004 at 6:09:46 am Re: DNS problems with e-mail by Alan Ordway on Dec 20, 2004 at 6:15:29 am Re: DNS problems with e-mail by Men & Mice Support on Dec 20, 2004 at 9:11:30 am Re: DNS problems with e-mail by Men & Mice Support on Dec 20, 2004 at 9:14:43 am