If not set (the default), these queries are answered with rcode ``Refused``.
Note that there is a short while after restarting that the cache has no authoritative data on the root,
-so it will answer with an NODATA (NOERROR and no answer records) in that period for RD=0 queries
-affecting for example older versions of dig when using its +trace option.
+so it will answer with an NODATA (NOERROR and no answer records) in that period for RD=0 queries.
+This affects for example older versions of dig when using its +trace option causing it to fail.
''',
'versionadded': '5.0.0'
},