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Name

auditd - audit daemon

Synopsis

/usr/sbin/auditd

Availability

SUNWcsu

Description

The audit daemon controls the generation and location of audit trail files. If auditing is desired, auditd reads the audit_control(4) file to get a list of directories into which audit files can be written and the percentage limit for how much space to reserve on each filesystem before changing to the next directory.

If auditd receives the signal SIGUSR1, the current audit file is closed and another is opened. If SIGHUP is received, the current audit trail is closed, the audit_control file reread, and a new trail is opened. If SIGTERM is received, the audit trail is closed and auditing is terminated. The program audit(1M) sends these signals and is recommended for this purpose.

Each time the audit daemon opens a new audit trail file, it updates the file audit_data(4) to include the correct name.

Auditing Conditions

The audit daemon invokes the program audit_warn(1M) under the following conditions with the indicated options:

audit_warn soft pathname

The file system upon which
pathname resides has exceeded the minimum free space limit defined in audit_control(4) . A new audit trail has been opened on another file system.
audit_warn allsoft
All available file systems have been filled beyond the minimum free space limit. A new audit trail has been opened anyway.
audit_warn hard pathname
The file system upon which pathname resides has filled or for some reason become unavailable. A new audit trail has been opened on another file system.
audit_warn allhard count
All available file systems have been filled or for some reason become unavailable. The audit daemon will repeat this call to audit_warn every twenty seconds until space becomes available. count is the number of times that audit_warn has been called since the problem arose.
audit_warn ebusy
There is already an audit daemon running.
audit_warn tmpfile
The file /etc/security/audit/audit_tmp exists, indicating a fatal error.
audit_warn nostart
The internal system audit condition is AUC_FCHDONE. Auditing cannot be started without rebooting the system.
audit_warn auditoff
The internal system audit condition has been changed to not be AUC_AUDITING by someone other than the audit daemon. This causes the audit daemon to exit.
audit_warn postsigterm
An error occurred during the orderly shutdown of the auditing system.
audit_warn getacdir
There is a problem getting the directory list from /etc/security/audit/audit_control.
The audit daemon will hang in a sleep loop until this file
is fixed.

Files

/etc/security/audit/audit_control
/etc/security/audit/audit_data

See Also

audit(1M) , audit_warn(1M) , bsmconv(1M) , praudit(1M) , auditon(2) , auditsvc(2) , audit.log(4) , audit_control(4) , audit_data(4)

Notes

The functionality described in this man page is available only if the Basic Security Module (BSM) has been enabled. See bsmconv(1M) for more information.

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