The auditd service can be configured to
synchronously write audit event data to disk. Add or correct the following
line in /etc/audit/auditd.conf to ensure that audit event data is
fully synchronized with the log files on the disk:
flush =
Rationale
Audit data should be synchronously written to disk to ensure
log integrity. These parameters assure that all audit event data is fully
synchronized with the log files on the disk.
ISA-62443-2-1-2009, Security for Industrial Automation and Control Systems Part 2-1: Establishing an Industrial Automation and Control Systems Security Program