man auditd Command

Man page for apt-get auditd Command

Man Page for auditd in Linux

This tutorial shows the man page for man auditd in linux.

Open terminal with 'su' access and type the command as shown below:
man auditd

Result of the Command Execution shown below:

AUDITD(8)                                                          System Administration Utilities                                                         AUDITD(8)



NAME
       auditd   The Linux Audit daemon

SYNOPSIS
       auditd [ f] [ l] [ n] [ s disable|enable|nochange]

DESCRIPTION
       auditd  is  the  userspace  component to the Linux Auditing System. It's responsible for writing audit records to the disk. Viewing the logs is done with the
       ausearch or aureport utilities. Configuring the audit rules is done with the auditctl utility. During startup, the rules in /etc/audit/audit.rules  are  read
       by auditctl. The audit daemon itself has some configuration options that the admin may wish to customize. They are found in the auditd.conf file.

OPTIONS
        f     leave the audit daemon in the foreground for debugging. Messages also go to stderr rather than the audit log.

        l     allow the audit daemon to follow symlinks for config files.

        n     no fork. This is useful for running off of inittab

        s=ENABLE_STATE
              specify  when starting if auditd should change the current value for the kernel enabled flag. Valid values for ENABLE_STATE are "disable", "enable" or
              "nochange". The default is to enable (and disable when auditd terminates). The value of the enabled flag may be changed during the lifetime of  auditd
              using 'auditctl  e'.

SIGNALS
       SIGHUP causes  auditd to reconfigure. This means that auditd re reads the configuration file. If there are no syntax errors, it will proceed to implement the
              requested changes. If the reconfigure is successful, a DAEMON_CONFIG event is recorded in the logs. If not successful, error handling is controlled by
              space_left_action, admin_space_left_action, disk_full_action, and disk_error_action parameters in auditd.conf.


       SIGTERM
              caused auditd to discontinue processing audit events, write a shutdown audit event, and exit.


       SIGUSR1
              causes auditd to immediately rotate the logs. It will consult the max_log_size_action to see if it should keep the logs or not.


       SIGUSR2
              causes auditd to attemp to resume logging. This is usually used after logging has been suspended.


FILES
       /etc/audit/auditd.conf   configuration file for audit daemon

       /etc/audit/audit.rules   audit rules to be loaded at startup


NOTES
       A  boot param of audit=1 should be added to ensure that all processes that run before the audit daemon starts is marked as auditable by the kernel. Not doing
       that will make a few processes impossible to properly audit.

       The audit daemon can receive audit events from other audit daemons via the audisp remote audispd plugin. The audit daemon may be linked with tcp_wrappers  to
       control which machines can connect. If this is the case, you can add an entry to hosts.allow and deny.


SEE ALSO
       auditd.conf(5), audispd(8), ausearch(8), aureport(8), auditctl(8).


AUTHOR
       Steve Grubb



Red Hat                                                                       Sept 2007                                                                    AUDITD(8)

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