Enable auditing of processes that start prior to auditd

This document (7021457) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 15 (All Released Versions)
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server 12 SP2

Situation

Once the audit daemon is running, it ensures auditing is enabled on all processes that get launched after startup of auditd and are capable of auditing. The "auditible" flag, which is present for all processes, indicates whether or not the events of the process is capable of auditing.

However, the processes launched prior to the audit process will not have auditing enabled when they are spawned.

Resolution

Booting with "audit=1" on the kernel command-line will make sure auditing is enabled on all auditible processes.

The change can be implemented the following way :

Open the file /etc/default/grub
Append "audit=1" to the space-separated list of options specified in the GRUB_CMDLINE_LINUX_DEFAULT variable.
Save the file
Update the GRUB2 boot loader configuration in /boot/grub2/grub.cfg by executing
```
# grub2-mkconfig -o /boot/grub2/grub.cfg
```
Reboot the system
Verify that the setting is present in the /proc/cmdline file

Disclaimer

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Document ID:7021457
Creation Date: 18-Sep-2017
Modified Date:01-Dec-2022
- SUSE Linux Enterprise Server
- SUSE Linux Enterprise Server for SAP Applications

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