Opendnssec is a complete dnssec zone signing system which is very easy to use with stability and security in mind. there are a lot of details in signing zone files with dnssec and opendnssec covers most of it.

this package contains opendnssec auditor, which is a tool to check whether a dnssec signed zone complies to a local policy. it is issued automatically (unless disabled) after each resigning of a zone and will stop the signed zone file from being distributed if any error is found.