[nsd-users] axfr appears to happen every few minutes

[Chris Dunbar]

Hello, 

I am new to nsd and have been setting up a few servers to eventually replace my bind servers. Things have been going reasonably well; most problems have been of my own making. This may be another instance of that, but I would like to double check. I noticed that in the log file zones appear to be transferring repeatedly, every few minutes. For example: 

[2021-07-29 13:17:54.719] nsd[26252]: info: axfr for jxxxxxxxxxy.com. from 5x.xx.xxx.8 

[2021-07-29 13:22:46.880] nsd[26252]: info: axfr for jxxxxxxxxxy.com. from 5x.xx.xxx.8 

[2021-07-29 13:27:20.024] nsd[26252]: info: axfr for jxxxxxxxxxy.com. from 5x.xx.xxx.8 

2021-07-29 13:32:11.180] nsd[26252]: info: axfr for jxxxxxxxxxy.com. from 5x.xx.xxx.8 

I've tried to sanitize things a bit, but that is the same zone being transferred to the same secondary server every 4 to 5 minutes. This is happening for all of my zones and all of my secondaries. 

1. Am I interpreting that correctly? 

2. If yes, Is that normal behavior? 

3. If no (to #2), what have I likely misconfigured? 

Please let me know if I should provide any additional information. 

Thank you, 
Chris 
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