Multiple consumer catalog zones support in NSD

NSD
1

Hello,

The NSD documentation on Catalog zones[1] states:

NSD can be a producer of catalog zones as well as a catalog zone consumer, but it is limited to process only a single consumer zone.

This can be a shortcoming in some architectures, like when NSD is used as a distribution server, dynamically "collecting" domains from several primary servers (each with its own catalog zone) and further transferring them to public authoritative servers.

How hard is this limitation? Is it deeply rooted in NSD internals or is there the possibility that the code could evolve to supporting multiple producers AND multiple consumer zones ?

Regards,

[1] https://nsd.docs.nlnetlabs.nl/en/latest/catalog-zones.html#catalog-zones

2

Hi Guillaume-Jean,

Sorry for not getting to this sooner! It escaped my attention. Willem's
the one who implemented it, but I believe this can be changed by means
of an undocumented compile time define
(MULTIPLE_CATALOG_CONSUMER_ZONES). At which point multiple consumer
zones are supported.

Note that it may cause problems if a member zone occurs in multiple
consumer zones though, which is why the define is there.

Hope that answers your question?

Best regards,
Jeroen