This is a DHCP issue and I would be re-asking on the dhcp list if the explantion below is not enough. Named is just honouring what is in the update requests.
dhcpd trys to ensure it doesn't clobber records it doesn't have change control for. From memory it does this with a new lease by asking is there a A record for the name and having the update abort if it is there. If this update fails it makes a second update request this time looking for a TXT record with known content specific to the DHCP server and the update succeeds if that is there. See below for a example for a example of the TXT record it looks for. By shutting down overnight I suspect you are triggering the new lease processing as the DHCP server isn't running when the lease expires. As long as the address record gets added by one of the update requests there is no problem, just a bit of noise in the logs. Mark ; <<>> DiG 9.6.0-APPLE-P2 <<>> any BRNEE8E63.dv.isc.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8499 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 2, ADDITIONAL: 1 ;; QUESTION SECTION: ;BRNEE8E63.dv.isc.org. IN ANY ;; ANSWER SECTION: BRNEE8E63.dv.isc.org. 1800 IN A 192.168.191.122 BRNEE8E63.dv.isc.org. 1800 IN RRSIG A 5 4 1800 20110129005954 20101130000256 14436 dv.isc.org. v5G+lPmaHfEJp5qSN0JiJJagrj7HPff5nblelsu/oEB5nXh8MCJVZb9W 7qGlO3q/Jmj+4N21ADErCKecmipGyQ== BRNEE8E63.dv.isc.org. 1800 IN TXT "3115c8fab3a3b80243bfe8be9b83182565" BRNEE8E63.dv.isc.org. 1800 IN RRSIG TXT 5 4 1800 20110129005954 20101130000256 14436 dv.isc.org. 2bPfwxfWpZ7omD7Vd9VfFrSbV1nCiTfF3ymPhudG+rF6g9ms/81zyEVV B+vhzS8KUj3O1AixECdnTMljYI9FYA== BRNEE8E63.dv.isc.org. 86400 IN NSEC bsdi.dv.isc.org. A TXT RRSIG NSEC BRNEE8E63.dv.isc.org. 86400 IN RRSIG NSEC 5 4 86400 20110129005954 20101130000256 14436 dv.isc.org. 0KHHF6xjPqyo5ps31BP2PI6lQ3AAW8n8gVmoc4ijTFB5/rzUN2gw86Ug GFRiCTirEbXdDX5lnJZ9sj3oG4qzeQ== ;; AUTHORITY SECTION: dv.isc.org. 86400 IN NS drugs.dv.isc.org. dv.isc.org. 86400 IN NS bsdi1.dv.isc.org. ;; ADDITIONAL SECTION: bsdi1.dv.isc.org. 86400 IN A 192.168.191.233 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Thu Dec 23 11:46:26 2010 ;; MSG SIZE rcvd: 512 -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users