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d="scan'208,217";a="344782267" Received: from 106-69-210-124.dyn.iinet.net.au (HELO swtf.swtf.dyndns.org) ([106.69.210.124]) by icp-osb-irony-out8.iinet.net.au with ESMTP; 26 Jan 2021 08:11:48 +0800 Message-ID: <702bbf002465236ec84ff4f90b9e159ccc3f327d.camel@iinet.net.au> Subject: Re: Occasional delayed output of events From: Burn Alting To: Steve Grubb Date: Tue, 26 Jan 2021 11:11:45 +1100 In-Reply-To: <11685937.O9o76ZdvQC@x2> References: <30c5dbc14368a1919717e2f39d2d4c29463c3108.camel@iinet.net.au> <6484d9c52b66405ecbe76096fd5e896e5626b216.camel@iinet.net.au> <11685937.O9o76ZdvQC@x2> Mime-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: linux-audit@redhat.com Cc: Richard Guy Briggs , Linux Audit X-BeenThere: linux-audit@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk Reply-To: burn@swtf.dyndns.org List-Id: Linux Audit Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-audit-bounces@redhat.com Errors-To: linux-audit-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=linux-audit-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/mixed; boundary="===============2469345156917520552==" --===============2469345156917520552== Content-Type: multipart/alternative; boundary="=-11QS7PlRodL4IsKkLriq" --=-11QS7PlRodL4IsKkLriq Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit On Mon, 2021-01-25 at 18:53 -0500, Steve Grubb wrote: > On Saturday, January 23, 2021 5:55:44 PM EST Burn Alting wrote: > > > > How is the following for a way forward. > > > > a. I will author a patch to the user space code to correctly parse this > > > > condition and submit it on the weekend. It will be via a new > > > > configuration item to auditd.conf just in case placing a fixed > > > > extended timeout (15-20 secs) affects memory usage for users of the > > > > auparse library. This solves the initial problem of ausearch/auparse > > > > failing to parse generated audit.b. I am happy to instrument what ever > > > > is recommended on my hosts at home (vm's and bare metal) to provide > > > > more information, should we want to 'explain' the occurrence, given I > > > > see this every week or two and report back. > > > > > > Seems reasonable to me. > > > > I can implement the 'end_of_event_timeout' change either as > > i. a command line argument to ausearch/aureport (say --eoetmo secs) and a > > new pair of library functions within the auparse() stable (say > > auparse_set_eoe_timeout() and auparse_get_eoe_timeout()) > > or > > ii. a configuration item in /etc/audit/auditd.conf, or > > > > > > Which is your preference? Mine is i. as this is a user space processing > > change, not a demon change. > > To be honest, I'm not entirely sure what we're seeing. I run some tests today > on my system. It's seeing issues also. I'd still like to treat the root cause > of this. But we do need to change the default. That I what I'm trying to > figure out. > > Back to your question, I'm wondering if we should do both? A changeable > default in auditd.conf and an override on the command line. So far, all items in /etc/audit/auditd.conf appear to only affect the daemon. Is this the right location to start adding non-daemon configuration items? (I accept there is no other place). Happy to do both, if required. > -Steve > > --=-11QS7PlRodL4IsKkLriq Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
On Mon, 2021-01-25 at 18:53 -0500, Steve Grubb wrote:
On Saturday, January 23, 2021 5:55:44 PM EST Burn =
Alting wrote:
How is the following for a way forward.
= 
a. I will author a patch to the user space code to correctly parse thi=
s
condition and submit it on the weekend. It will be via a new
configuration item to auditd.conf just in case placing a fixed
extended timeout (15-20 secs) affects memory usage for users of the
auparse library. This solves the initial problem of ausearch/aupar=
se
failing to parse generated audit.b. I am happy to instrument w=
hat ever
is recommended on my hosts at home (vm's and bare metal)=
 to provide
more information, should we want to 'explain' the occ=
urrence, given I
see this every week or two and report back.

Seems reasonable to me.

I can implement the 'end_of_event_timeout' change eith=
er as
i. a command line argument to ausearch/aureport (say --eoet=
mo secs) and a
new pair of library functions within the  auparse(=
) stable (say
auparse_set_eoe_timeout() and auparse_get_eoe_timeo=
ut())
or
ii. a configuration item in /etc/audit/auditd.=
conf, or


Which is your preference? =
Mine is i. as this is a user space processing
change, not a demon=
 change.

To be honest, I'm not entire=
ly sure what we're seeing. I run some tests today 
on my system. =
It's seeing issues also. I'd still like to treat the root cause 
=
of this. But we do need to change the default. That I what I'm trying to 
figure out.

Back to your question, I'm wo=
ndering if we should do both? A changeable 
default in auditd.con=
f and an override on the command line.

So far, all items in /etc/audit/auditd.conf appear to only affect the dae=
mon. Is this the right location to start adding non-daemon configuration it=
ems? (I accept there is no other place).

Happy to =
do both, if required.

-Steve


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