Bind master slave not updating
Authoritative-only DNS servers are often a good configuration for high performance because they do not have the overhead of resolving recursive queries from clients. I have the three slaves registered as a DNS cluster, using webmin.One such proposed method is called dper: the DNS Peering Protocol which has an extra XML configuration that needs to be transported (somehow) to the slaves.
; host and canonical name records mail IN CNAME ns1.
For security reasons we will chroot bind9 in its own jail.
Using two servers for a domain is a commonly used setup and in order to host your own domain you are required to have at least 2 domain servers.
Check out this guide to learn about the concepts we will be implementing in this guide. One will be for the "master" DNS server where the zone files for our domain will originate and one will be the "slave" server which will receive the zone data through transfers and be available in the event that the other server goes down.
This avoids the peril of having a single point of failure for your DNS servers.