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 ++++++++++++++++++++++++++++++++++++++++ _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
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