Auditd event cache

Operating Systems Linux Red Hat Auditd event cache

08-12-2010

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Auditd event cache

I'm writing an auditd plugin. In my testing, I enabled pam_tty_audit.

After running test data through it, I notice that when logged in as root, the tty events are sent in real time, and not cached in the event queue.

When running as a user, the events are only spit out by the dispatcher (and presumably downstream in the auditd daemon) much later - presumably when the cache is full.

The other difference is the root tty events are sent as individual events, whereas the user events are collected and sent as a single compound event. I've tried various configuration changes, but this behavior seems to be set in stone. Is there a way of forcing the system to send tty events to the plugin in near real time as with root?

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audisp-remote

AUDISP-REMOTE:(8)					  System Administration Utilities					 AUDISP-REMOTE:(8)

NAME

       audisp-remote - plugin for remote logging

SYNOPSIS

       audisp-remote

DESCRIPTION

       audisp-remote is a plugin for the audit event dispatcher daemon, audispd, that preforms remote logging to an aggregate logging server.

TIPS

       If  you	are  aggregating  multiple  machines,  you should enable node information in the audit event stream. You can do this in one of two
       places. If you want computer node names written to disk as well as sent in the realtime	event  stream,	edit  the  name_format	option	in
       /etc/audit/auditd.conf.	If you only want the node names in the realtime event stream, then edit the name_format option in /etc/audisp/aud-
       ispd.conf. Do not enable both as it will put 2 node fields in the event stream.

FILES

       /etc/audisp/plugins.d/au-remote.conf, /etc/audit/auditd.conf, /etc/audisp/audispd.conf, /etc/audisp/audisp-remote.conf

SEE ALSO

       audispd(8), auditd.conf(8), audispd.conf(8), audisp-remote.conf(5).

AUTHOR

       Steve Grubb

Red Hat 							     Mar 2008							 AUDISP-REMOTE:(8)

Red Hat