On 2019-10-22 12:20, Stephen John Smoogen wrote:
On Tue, 22 Oct 2019 at 12:55, Valeri Galtsev <galtsev@xxxxxxxxxxxxxxxxx> wrote:
Hello Experts!
I'm sure many of you run CentOS for some time already.
My question is: is there some place that lists which of the most often
used sysadmin commands are gone and what are replacements for them. Or
what else one needs to do after successful installation. (in the past it
was process accounting that was not enabled by default, but which gives
you quite some handle in investigating compromise).
I just tried quite ordinaly command of freshly installed CentOS 8:
last
and got an error:
last: (default utx db): No such file or directory
Huh. When I run it I got
[root@localhost ~]# last
root pts/0 192.168.1.15 Sat Oct 19 15:42 still logged in
reboot system boot 4.18.0-80.11.2.e Fri Oct 18 09:39 still running
root pts/1 192.168.1.15 Thu Oct 17 14:16 - 09:38 (19:22)
Indeed, as I suspected, it was just me. Really stupid thing: I shuffled
two hostnames (one was freshly installed CentOS 8 machine, another was
jail inside some FreeBSD machine...). Puzzle solved, but thanks to that
I'm reading RedHat's document about what's new in RedHat 8 compared to
7, - Thank you, Leon, for link in your reply!
Valeri
smooge pts/1 192.168.1.15 Fri Oct 4 18:14 - 13:24 (12+19:10)
smooge pts/1 192.168.1.15 Fri Oct 4 09:02 - 09:09 (00:06)
smooge pts/1 192.168.1.15 Thu Oct 3 16:31 - 16:46 (00:14)
smooge pts/2 192.168.1.15 Mon Sep 23 17:23 - 09:05 (15:41)
smooge pts/1 192.168.1.15 Sat Sep 21 14:45 - 10:36 (5+19:51)
smooge pts/1 192.168.1.15 Thu Sep 19 17:04 - 17:05 (00:01)
smooge pts/1 192.168.1.15 Mon Sep 16 13:06 - 17:02 (03:55)
smooge tty2 tty2 Thu Sep 12 12:43 - down (35+20:55)
reboot system boot 4.18.0-80.el8.x8 Thu Sep 12 12:33 - 09:38 (35+21:05)
In el7 it used to be in this package:
[smooge@batcave01 ansible (master)]$ rpm -qf /usr/bin/last
sysvinit-tools-2.88-14.dsf.el7.x86_64
And in el8 it is in
[root@localhost ~]# rpm -qf /usr/bin/last
util-linux-2.32.1-8.el8.x86_64
The wtmp file is owned by
[root@localhost ~]# rpm -qf /var/log/wtmp
systemd-239-13.el8_0.5.x86_64
However as you can tell from above this system has been installed for
a bit so I am guessing whatever creates wtmp hasn't happened?
I realize that it could be just me, and I'll cope with that myself one
way or another but this one prompted me to ask everybody: Is there
anything I can read so I can learn what differenmt to expect on CentOS 8
from, say, CentOS 7?
Thanks.
Valeri
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
--
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
