On 10/22/19 10:55 AM, Valeri Galtsev 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
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
++++++++++++++++++++++++++++++++++++++++
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Saw your later response that the problem was solved but this is an
interesting question that deserves an answer (and not just what changed
in RHEL8). As an example, I'm used to ifconfig and route but keep
getting reminded that these commands are now deprecated and "ip" should
be used instead. Likewise for using dnf instead of yum, systemctl
instead of service, firewallcmd instead of iptables, etc. I wonder how
many shell scripts there are "out there" that folks have written or
accumulated over the years and which now need to be updated before
deprecated becomes no longer available? Or, like using iptables instead
of firewallcmd, may cause something very different than what is expected.
Anyone know of any resource out there that might provide such documentation?
Cheers,
Dave
--
"They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."
-- Benjamin Franklin
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