Thank you so much for your very valuable answers.
After playing around, I found that the assignment of loginuid produces a login type
message (I could have guess)
Where can I find the description and the trigger of all messages types if such a
documentation exists ?
Philippe
-----Message d'origine-----
De : Steve Grubb [mailto:sgrubb@redhat.com]
Envoyé : mardi 14 janvier 2014 15:34
À : Maupertuis Philippe
Cc : linux-audit(a)redhat.com
Objet : Re: Setting loginuid for a process starting at boot
On Tuesday, January 14, 2014 02:13:45 PM Maupertuis Philippe wrote:
Auditctl -e wont probably go unnoticed while an inconspicuous echo
probably would.
Both are auditable events as required by common criteria. Changes to auditing must produce
an event as well as the assignment of loginuids. This is automatic and not caused by a
rule.
Is there a rule to track this action without overloading the system?
Changes to audit state are auditable events. You can test this yourself with auditctl and
ausearch.
Alternatively, is a post mortem analysis viable ?
yes.
I was thinking of finding process in the audit.log whose loginuid
differs
from parent's loginuid. Is there a way to extract information and reformat
the result (to keep process pid ppid loginuid for example) ?
You can write a utility using the auparse library to do anything you want it
to do.
https://fedorahosted.org/audit/browser/trunk/tools/aulastlog/aulastlog.c
The aulastlog program is probably a decent starting point to create something
like this. Instead of keeping uid, you'd be keeping pids and some attributes
of them. My guess is that you'll have long running processes that are not in
the logs and you'll have some unknowns.
-Steve
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