Catalog zone is a concept when the list of zones configured is maintained
as contents of a special zone. This approach has the benefit of simple propagation
of the actual zone list to slave servers. Especially when the list is frequently
-updated.
+updated. Currently, catalog zones are described in this `Internet Draft
+<https://tools.ietf.org/html/draft-ietf-dnsop-dns-catalog-zones>`_.
Terminology first. *Catalog zone* is a meta-zone which shall not be a part
of the DNS tree, but it contains information about the set of member zones and
- ``post-active`` — The key is no longer published in the zone, but still used for signing.
-Special states for RFC 5011 trust anchor roll-over
+Special states for :rfc:`5011` trust anchor roll-over
- ``revoke`` (only for KSK) — The key is published and used for signing, and the Revoked flag is set.