Are all the slaves authoritative for all the zones? If so, unless you're using forwarding, or some really odd delegation, queries shouldn't be going to the master servers.
Todd. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Keith Christian Sent: Monday, May 17, 2010 5:59 PM To: [email protected] Subject: How to prevent slaves from contacting master for name resolution? Our redundant DNS configuration is one master and three slaves, spread across two colo facilities. master and slave1 are in colo_ALPHA. slave2 and slave3 are in colo_BETA. During an extended maintenance window, the master DNS was offline. Slave2 was trying to contact the master, and lookups failed. Usually, slave2 resolves without contacting the master, but occasionally it does. The IP for the master does not appear in slave2's /etc/resolv.conf, and I'm not sure what else to check for on slave machines. Where else would I look? Would any settings in named.conf account for this behavior? Versions are Linux (CentOS 5) and BIND 9.5.x. Thanks. ======Keith _______________________________________________ bind-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/bind-users --------------------------------------------------------------------- This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. _______________________________________________ bind-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/bind-users
