[nsd-users] Question on slave

[Jeroen Koekkoek]

Hi Jean-Christophe,

Anand's answer is entirely correct.

Once 4.8.0 is released, zone files will be written once per hour by
default.

Best regards,
Jeroen

On Tue, 2023-12-05 at 10:48 +0100, Anand Buddhdev via nsd-users wrote:
> On 04/12/2023 13:47, Jean-Christophe Boggio via nsd-users wrote:
> 
> Hi Jean-Christophe,
> 
> > When syncing between master and slaves, am I supposed to see new
> > files 
> > appear in the slave's "zonesdir" directory? Because, as you might 
> > expect, I see nothing here. Is this behavior normal? From what I 
> > understand, the slave "caches" the data in /var/lib/nsd/nsd.db (I'm
> > using debian).
> 
> By default, NSD doesn't write out zone files on the secondary. It
> stores 
> all the data in nsd.db, as you've observed.
> 
> You can make NSD write out zone files, by setting the option 
> "zonesfile-write" to a number above 0, and setting "zonefile" to 
> something like "<zonename>.zone" for each secondary zone. NSD will
> then 
> write out changed zones to plain text files. This is in *addition* to
> saving the zone data in nsd.db.
> 
> Alternatively, you can disable the database altogether by setting 
> "database" to the empty string. Then, NSD will not create nsd.db, and
> will instead write out zone files every hour (this is for efficiency,
> to 
> prevent too many disk writes on a busy secondary server).
> 
> Note that the "database" option is deprecated, and will go away with
> the 
> upcoming 4.8.0 release. So you should probably disable it in your
> config 
> too.
> 
> Regards,
> Anand Buddhdev
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