how two dns bind master sync?

[Zhengyu Pan]

Because I need to a master as a cold standby.  Another master need to have the same zone  and configuration with the former.   When a master is down, I need to switch to another master right away.


On 8/22/2018 16:39，Reindl Harald<h.reindl at thelounge.net> wrote：

Am 22.08.2018 um 09:15 schrieb Zhengyu Pan:
Hi: 
In my application scenario, I have two master. Each master connect
several slave dns. When users update zone, i update these two master
respectively in a for loop. However, when any master update fails, i
will roll bock. you know, whenever any update, zone's serial will
increase. this cause that the serial numbers of zone in two masters are
inconsistent. How can i keep these two masters' zones consistent in real
time? Is using rsync tool a good way?  In the industry, is there a good
way to synchronize two masters?
why two masters to begin with?
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