Script nfclean.pl is installed in examples/ directory and can be used to clean up files nfcapd created. For a detailed description read nfclean.pl. Option nfcapd_start is disabled in /etc/default/nfdump by default. This prevents nfdump to start a nfcapd daemon on installation. This is default, because most people install nfdump as a dependency from nfsen. And nfsen is controlling nfcapd on its own. The package currently contains patches that are not in upstream release: 05_division-by-zero.patch