Hello, Many thanks for your answer. I will try your suggestion but what if a user makes a copy of the su executable to let's say under /tmp and execute /tmp/su . Will this be audited using the rule you suggest? Best regards Maria Sent from my Samsung device -------- Original message -------- From: Steve Grubb <sgrubb(a)redhat.com&gt; Date: 23/04/2017 11:48 (GMT+02:00) To: Maria Tsiolakki <tmaria(a)cs.ucy.ac.cy&gt; Cc: linux-audit(a)redhat.com Subject: Re: audit su - access Hello, On Fri, 21 Apr 2017 16:00:54 +0300 Maria Tsiolakki <tmaria(a)cs.ucy.ac.cy&gt; wrote: > We have setup the audit log on a Redhat linux 7.3 machine > We have setup various rules, so far successfully. Our last > requirement is to have audit log, when a user execute the su - or su > - root, or sudo su I write the following rule , but it does not work > -a always,exit -S su This ^^^ is the problem. The -S switch is for system calls. To see a list of system calls you can run "ausyscall --dump". Su is a program and not a syscall. So, you would place a watch on it like this: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=200 -F auid!=4294967295 -F key=su-execution -Steve > -F auid>=200 -F auid!=4294967295 -F > key=su-execution How can I audit log the execution of the su command? > > Best regards > Maria > -- Linux-audit mailing list Linux-audit(a)redhat.com https://www.redhat.com/mailman/listinfo/linux-audit