Date:        Mon, 19 Jun 2000 12:24:52 -0700
    From:        "Mark R. Nathan" <mark@nathan.net>
    Message-ID:  <p04310136b57422c7f796@[192.168.1.100]>

  | cannot redefine zone 'dns1.xx.xx' class IN
  | cannot redefine zone '28.xx.xx.in-addr.arpa' class IN

Make sure your named.conf only has each of those defined once.

  | warnings that SOA expire value is less then SOA refresh+retry (using 
  | same values from previous settings)

Your SOA values don't make sense.  Make the expire value bigger (or
the others smaller).   The messages should tell you which zones.

  | No Default TTL set using SOA minimum instead

You have no $TTL lines in the zone files.  You can ignore that one
if you like, but it is better to start each zone file with a line
like
	$TTL 86400
to set the default TTL on all records with no TTL (usually most of
them) to one day (or pick your own value - in seconds).

kre