Concise Guide to DNS and BIND, The

Slave Server Issues

In the setting where the dynamic zone does not really change that often and immediate propagation of changes is not critical, there is nothing to add to what has already been said about slave servers in Chapter 2.

In the case where the dynamic zone changes often and immediate updates of slave servers is important, I would like to remind you of, and reinforce, some things said in Chapter 2. When an update is received, the server will follow the usual procedure when a zone is updated: After a random waiting period (in the order of tens of seconds), a NOTIFY request is sent out to all the listed nameservers and any additional servers listed in named.conf. In this setting keeping the list of nameservers up to date and ensuring ...