I'm having problems querying one particular domain with BIND 9.10.0-P2 if prefetch is enabled. I have been able to duplicate the problem from multiple servers running 9.10.0-P2 with different operating systems but I have not been able to duplicate the problem with any other domains (yet, I'm still trying),
The domain that shows the problem is www.securityplusfcuhb.org<http://www.securityplusfcuhb.org>. It is a CNAME that points to a CNAME that points to an A record: ;; QUESTION SECTION: ;www.securityplusfcuhb.org. IN A ;; ANSWER SECTION: www.securityplusfcuhb.org. 86399 IN CNAME securityplusfcuhb.flb.intuit.com. securityplusfcuhb.flb.intuit.com. 30 IN CNAME 03845.olb.prd1.flb.digitalinsight.com. 03845.olb.prd1.flb.digitalinsight.com. 30 IN A 199.102.151.76 As long as no queries are performed at a time that would trigger a prefetch, everything is fine. If a query is performed at a time that does trigger a prefetch, all subsequent queries return NXDOMAIN. dig @localhost a www.securityplusfcuhb.org ; <<>> DiG 9.10.0-P2 <<>> @localhost a www.securityplusfcuhb.org ; (2 servers found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49996 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.securityplusfcuhb.org. IN A ;; ANSWER SECTION: www.securityplusfcuhb.org. 86187 IN CNAME securityplusfcuhb.flb.intuit.com. ;; AUTHORITY SECTION: flb.intuit.com. 597 IN SOA flbflb-gtm-qydc.intuit.com. hostmaster.flb.intuit.com. 2014022110 10800 3600 604800 86400 Flushing the cache fixes the problem. Disabling prefetch prevents the problem from happening. Tedd
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