zoned automatically generates a named.conf and a collection of zone
files.  It should be run periodically from cron.  The zoned_cron can
be symlinked into /etc/cron.d on a debian system, or the line can be
added on to the end of the /etc/crontab.  

zoned.pl and the component modules should live in /usr/local/sbin

It reads a zonelist, typically /etc/zoned.zones, in which it finds a
collection of domains to automatically manage.  This can indicate
master servers for which it should generate slave stanzas in a
generated named.conf.  It can also indicate a "zone source file" which
is a fragment of a zone file that is built into a full zone file and
used in the generated named.conf.  We currently support A, CNAME, NS,
MX, AAAA, TXT, SRV, and AFSDB records.  Adding support for additional
records should be very easy.  It is only necessary to write a
record-verifying function.

It supports mail and zephyr notifications of fatal errors, fatal zone
errors (these block zonefile generation but don't interfere with other
zones or the named.conf), zone regenerations, and general status
messages.  Zone-specific messages--regeneration notifications and
fatal zone errors--are mailed to the zone maintainer from zoned.zones
as well as to the configured email address.