Hi everyone, I have been using a Red Hat 6.2 caching only nameserver that is talking to the root servers directly for years without any problem. Recently I seem to have problems with the lookup of a specific domain, freeler.nl, and more specifically pop3.freeler.nl and www.freeler.nl. The names are not resolvable due to a "No response from server". I have to either dig by hand, or do a lookup to pop-env.svr.pol.co.uk of which pop3.freeler.nl is an alias or a lookup of pridnsenv1.svr.pol.co.uk (or pridnsenv2), the authoritative nameserver(s), after which the names are available from the cache. Note that the problem is intermittent, sometimes I can resolve the names even with an empty name cache (either after reboot or after "service named restart"). Is this a bug in bind-8.2.3-0.6.x and/or bind-utils-8.2.3-0.6.x, is it a configuration error of one of the involved nameservers, or is something else going on? It is not a big problem to me, but I am curious why I am having this problem. Any light you can shed is appreciated, as well as hints how to debug the problem. Here is some output to illustrate the problem:
[leonard@firewall leonard]$ nslookup pop3.freeler.nl Server: localhost Address: 127.0.0.1 *** localhost can't find pop3.freeler.nl: No response from server [leonard@firewall leonard]$ dig @a.root-servers.net pop3.freeler.nl ; <<>> DiG 8.3 <<>> @a.root-servers.net pop3.freeler.nl ; (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: 6, ADDITIONAL: 6 ;; QUERY SECTION: ;; pop3.freeler.nl, type = A, class = IN ;; AUTHORITY SECTION: nl. 2D IN NS AUTH02.NS.UU.NET. nl. 2D IN NS NS2.NIC.FR. nl. 2D IN NS NS.DOMAIN-REGISTRY.nl. nl. 2D IN NS NS.RIPE.NET. nl. 2D IN NS SUNIC.SUNET.SE. nl. 2D IN NS NS2.DOMAIN-REGISTRY.nl. ;; ADDITIONAL SECTION: AUTH02.NS.UU.NET. 2D IN A 198.6.1.82 NS2.NIC.FR. 2D IN A 192.93.0.4 NS.DOMAIN-REGISTRY.nl. 2D IN A 193.176.144.2 NS.RIPE.NET. 2D IN A 193.0.0.193 SUNIC.SUNET.SE. 2D IN A 192.36.125.2 NS2.DOMAIN-REGISTRY.nl. 2D IN A 193.176.144.130 ;; Total query time: 154 msec ;; FROM: firewall to SERVER: a.root-servers.net 198.41.0.4 ;; WHEN: Thu Jul 11 15:51:10 2002 ;; MSG SIZE sent: 33 rcvd: 284 [leonard@firewall leonard]$ dig @auth02.ns.uu.net pop3.freeler.nl ; <<>> DiG 8.3 <<>> @auth02.ns.uu.net pop3.freeler.nl ; (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: 2, ADDITIONAL: 0 ;; QUERY SECTION: ;; pop3.freeler.nl, type = A, class = IN ;; AUTHORITY SECTION: freeler.nl. 4D IN NS pridnsenv1.svr.pol.co.uk. freeler.nl. 4D IN NS pridnsenv2.svr.pol.co.uk. ;; Total query time: 143 msec ;; FROM: firewall to SERVER: auth02.ns.uu.net 198.6.1.82 ;; WHEN: Thu Jul 11 15:51:29 2002 ;; MSG SIZE sent: 33 rcvd: 96 [leonard@firewall leonard]$ dig @pridnsenv1.svr.pol.co.uk pop3.freeler.nl ; <<>> DiG 8.3 <<>> @pridnsenv1.svr.pol.co.uk pop3.freeler.nl ; (1 server found) ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6 ;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 0 ;; QUERY SECTION: ;; pop3.freeler.nl, type = A, class = IN ;; ANSWER SECTION: pop3.freeler.nl. 4H IN CNAME pop-env.svr.pol.co.uk. ;; AUTHORITY SECTION: . 165w2d9h46m39s IN NS A.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS B.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS C.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS D.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS E.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS F.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS G.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS H.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS I.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS J.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS K.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS L.ROOT-SERVERS.NET. . 165w2d9h46m39s IN NS M.ROOT-SERVERS.NET. ;; Total query time: 98 msec ;; FROM: firewall to SERVER: pridnsenv1.svr.pol.co.uk 213.218.77.20 ;; WHEN: Thu Jul 11 15:51:53 2002 ;; MSG SIZE sent: 33 rcvd: 279 [leonard@firewall leonard]$ nslookup pop3.freeler.nl Server: localhost Address: 127.0.0.1 Non-authoritative answer: Name: pop-env.svr.pol.co.uk Address: 213.218.77.91 Aliases: pop3.freeler.nl Bye, Leonard. _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
