how to generate the name of a .nzf file?

[Tom Mueller]

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Hi,

perhaps my idea is quite stupid.

I think about following scenario:
A primary nameserver is script-managed via rdnc addzone/delzone and
nsupdate with data from a database.
I know, rndc generates nzf files, which are named by hash values of
the corresponding view names.
Now there are eg. 50.000 zones configured in that way.
At black friday the system crashes and has to be replaced by a new system.
File-based backups of the old system are of course too old and a
recovery by this way requires zone updates since last backup time, so
its rated as deprecated.

My idea:
Transfer of the the actual generated zone files to the new system and
then performing 50.000 rndc addzone commands to build the nzf files.
The rndc commands will take a lot of time, so it's faster, to generate
the nzf files at my own and transfer them to the new system, too.
Starting named - done.

The question is: how to generate the name of a nzf file?
Is there a tool or an easy way?

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Greetings,

Thomas Müller
Entwickler Dedicated Server
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