/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ 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/Command/Object/AcknowledgeProblemCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/AddCommentCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/DeleteCommentCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/DeleteDowntimeCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ObjectCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ProcessCheckResultCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/PropagateHostDowntimeCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/RemoveAcknowledgementCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ScheduleHostCheckCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ScheduleHostDowntimeCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ScheduleServiceCheckCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ScheduleServiceDowntimeCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/SendCustomNotificationCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/ToggleObjectFeatureCommand.php
/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Command/Object/WithCommentCommand.php