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We are administrating tr. domain and testing bind9 to upgrade from bind8. Below is a bind8 response for a sample query from one of our currently operating DNS's: -------------------------------------------------------------------------------- ---------------- ustun@houston:~$ dig @ns2.nic.tr milliyet.com.tr. -t ns ; <<>> DiG 9.3.2-P1 <<>> @ns2.nic.tr milliyet.com.tr. -t ns ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1229 ;; flags: qr rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2 ;; QUESTION SECTION: ;milliyet.com.tr. IN NS ;; ANSWER SECTION: milliyet.com.tr. 43200 IN NS doldns02.dol.com.tr. milliyet.com.tr. 43200 IN NS doldns01.dol.com.tr. ;; ADDITIONAL SECTION: doldns02.dol.com.tr. 43200 IN A 213.243.1.42 doldns01.dol.com.tr. 43200 IN A 213.243.1.40 ;; Query time: 3 msec ;; SERVER: 144.122.95.52#53(144.122.95.52) ;; WHEN: Wed Dec 13 16:00:31 2006 ;; MSG SIZE rcvd: 115 ustun@houston:~$ -------------------------------------------------------------------------------- ---------------- and below is the response from bind9 installed on a test machine to the same query with the same configuration: ustun@houston:~$ dig @144.122.95.178 milliyet.com.tr. -t ns ; <<>> DiG 9.3.2-P1 <<>> @144.122.95.178 milliyet.com.tr. -t ns ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34422 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;milliyet.com.tr. IN NS ;; AUTHORITY SECTION: milliyet.com.tr. 43200 IN NS doldns02.dol.com.tr. milliyet.com.tr. 43200 IN NS doldns01.dol.com.tr. ;; ADDITIONAL SECTION: doldns01.dol.com.tr. 43200 IN A 213.243.1.40 doldns02.dol.com.tr. 43200 IN A 213.243.1.42 ;; Query time: 89 msec ;; SERVER: 144.122.95.178#53(144.122.95.178) ;; WHEN: Wed Dec 13 15:59:14 2006 ;; MSG SIZE rcvd: 115 ustun@houston:~$ -------------------------------------------------------------------------------- ------ recursion is not allowed in both machines. Bind8 looks at the zone files at localhost, finds the NS record, queries root servers for additional ip information and gives an answer. However, bind9 takes this query as recursive, and does not return an answer although the NS record is available at localhost in "com.tr." zone file. Bind9 logs this: Dec 13 16:34:11 localhost named[19911]: Dec 13 16:34:11.617 security: debug 1: client 144.122.95.150#33024: recursion available: denied I searched the list but couldn't find a satisfying answer. So why is there a difference? How can we reconfigure bind9 to answer the query as bind8 to preserve the same system? Thanks and Regards, ustun
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