/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Data/ is in icingaweb2-module-monitoring 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
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/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Data/ColumnFilterIterator.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Command.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Comment.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Contact.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Contactgroup.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Customvar.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/DataView.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Downtime.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Eventgrid.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Eventhistory.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hostcomment.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hostdowntime.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hostgroup.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hostgroupsummary.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hoststatus.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Hoststatussummary.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Instance.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Notification.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Programstatus.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Runtimesummary.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Runtimevariables.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicecomment.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicedowntime.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicegroup.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicegroupsummary.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicestatus.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Servicestatussummary.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/Statussummary.php