DISA STIGS Viewer

AlmaLinux OS 9 must periodically flush audit records to disk to prevent the loss of audit records.

Overview

Finding ID Version Rule ID IA Controls Severity
V-269531 ALMA-09-054690 SV-269531r1050414_rule   Medium
Description
If option "freq" is not set to a value that requires audit records being written to disk after a threshold number is reached, then audit records may be lost.
STIG Date
CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide 2025-05-22

Details

Check Text (C-73562r1048969_chk)
Verify that audit system is configured to flush to disk after every 100 records with the following command:

$ grep freq /etc/audit/auditd.conf

freq = 100

If "freq" is not set to a value between "1" and "100", the value is missing, or the line is commented out, this is a finding.
Fix Text (F-73463r1049943_fix)
Configure AlmaLinux OS 9 to flush audit to disk by adding or updating the following rule in "/etc/audit/auditd.conf":

freq = 100

The audit daemon must be restarted for the changes to take effect.