Bind9 slave not updating

03 Feb

Most importantly, it translates domain names meaningful to humans into the numerical identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.The Domain Name System makes it possible to assign domain names to groups of Internet resources and users in a meaningful way, independent of each entity's physical location.Note: There are some issues with this Howto, too numerable to fix quickly, and it requires bringing up to standard. in all other places, the document uses the machine name example ns.I'm mentioning this to help anyone to avoid the unnecessary time trying to resolve their DNS, owing the the inconsistencies in this document, particularly if you're new to DNS configuration. Here it changes to box (I believe the author was simply trying to show that additional computers would be listed, but failed to use a different address for box.You need to place following two directives in options section of on each slave server: The transfer-source and transfer-source-v6 clauses specify the IPv4 and IPv6 source address to be used for zone transfer with the remote server, respectively.

Master DNS servers (Primary Server) are the original zone data handlers and Slave DNS server (Secondary Server) are just a backup servers which is used to copy the same zone information’s from the master servers.

Feature: Automatically increase SOA serial number when a DNS zone managed by Identity Management any record in the zone is updated.

This feature takes advantage of and requires persistent search data refresh mechanism, which is enabled by default in the Identity Management server install script.

I’ve three nameserver load-balanced (LB) in three geo locations.

Each LB has a front end public IP address and two backend IP address (one for BIND and another for zone transfer) are assigned to actual bind 9 server running Red Hat Enterprise Linux 5.2 as follows: Jan 1 ns1 named[5323]: client 75.54xx#50968: zone transfer 'example.com/AXFR/IN' denied Jan 1 ns1 named[5323]: client 75.54xx#54359: zone transfer 'example.org/AXFR/IN' denied A connection cannot be established, it tries again with the servers main ip or LB2 / LB3 ip.