On Thursday, July 30, 2020 1:54:09 PM EDT Todd Heberlein wrote: > I’ve noticed that the httpd process on a CentOS 7.7 system I am working > with is running with an Audit ID of -1. Example ID values are: > > auid=4294967295 > uid=48 > gid=48 > ... > > So if use the standard filter "-F auid!=-1” in the audit rules I do not see > httpd activity. > > Is this common?
Yes, this is common. Most people are interested in the actions that people take on the machine rather than normal system functioning. > How do I change the auid to something else, so I can capture the httpd > activity in the audit log? A couple of ways. 1) remove the auid!=-1. That will get you all daemons. 2) Use audit by executable rules: -a always,exit -F arch=b64 -S execve -F exe=/usr/sbin/httpd -F key=httpd-exec -Steve > Example audit line: > > type=SYSCALL msg=audit(1596065566.721:31357): arch=c000003e syscall=2 > success=yes exit=15 a0=55a0a2d9b3c0 a1=80000 a2=0 a3=7ffe5d4d6720 items=1 > ppid=1130 pid=1253 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 > egid=48 sgid=48 fsgid=48 tty=(none) ses=4294967295 comm="httpd" > exe="/usr/sbin/httpd" key=(null) -- Linux-audit mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-audit
