Moving a volume group and its logical volumes to another computer isn't quite as simple as just moving the hard drives. You first have to unmount the logical volumes, deactivate volume group, export volume group, import volume group, and then activate volume group.
The old SysVInit daemon management system has been around forever, and it's worked well. Now though, it's time for something newer. The new "systemd" init system for Linux is much more capable, and brings new benefits to system administrators. It was invented at Red Hat, and has now spread to most other major distros, such as Debian, SUSE, and Ubuntu.
Yes, there is some systemd controversy, but hopefully you'll keep an open mind about it. And, hopefully you've enjoyed this Linux tutorial from the BeginLinux Guru!
More on "systemd":
https://youtu.be/ULTTg-dX7Qc
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https://www.youtube.com/watch?v=KftuGM_ylKg
In this series of Linux administration videos, we'll look at the process of Linux user account creation for the various families of Linux distros. We'll look at the passwd file, the shadow file, the group file, and the gshadow file. We'll then look at the default settings in the login.defs file. In future Linux tutorial videos, we'll look at the actual process of creating and managing user accounts.
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https://www.youtube.com/watch?v=jvS5oQ5xDKo
I've just certified Linux Professional Institute Level 3 Enterprise Security. Studying for that has kept me away from making BeginLinux Guru videos for a while. I thought that this would give me a chance to talk a bit about the Linux certifications that are available, including Red Hat Linux certifications, Linux Foundation certifications, LPI certifications, and the SANS Institute Linux certification.
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https://www.youtube.com/watch?v=hzWUNaqkIiI
In this Linux tutorial for beginners, we present another lesson about Linux process management. We'll set the Linux process priority with the Linux nice command and the Linux renice command.
I hope that you enjoyed this BeginLinux Guru Linux administration tutorial for beginners.
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https://www.youtube.com/watch?v=fRE3wzR58Eo
For a long time, Windows has had the ability to automatically restart crashed services. Now with systemd, you can also have crashed Linux services restart automatically. In this Linux tutorial, I'll show you how to do that. This is an easy trick that will make life easier for Linux systems administrators who need to take good care of their Linux servers. So, enjoy this systemd tutorial.
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https://www.youtube.com/watch?v=1UGSmPHU5dU
This time, we'll look at upgrading OpenSUSE Leap 42.1 to OpenSUSE Tumbleweed Rolling Release. As it turns out, upgrading OpenSUSE Linux to a rolling release model is quite easy. Other than a couple of minor glitches, it works well. In fact, the upgrade worked better than it does on certain other Linux distros.
Procedure:
http://www.techrepublic.com/article/how-to-upgrade-opensuse-leap-to-opensuse-tumbleweed/
Installing nVidia Drivers:
https://en.opensuse.org/SDB:NVIDIA_the_hard_way
Installing Packman repository:
https://en.opensuse.org/Additional_package_repositories
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https://www.youtube.com/watch?v=VZZDMHCZ08k
The big news from last week is that Adobe are killing Flash. Flash has done a lot of good for making the web what it is today, but it has also become very problematic due to the large number of Flash security bugs. So, the death of Flash is good news for almost everybody, but it's especially good news for desktop Linux users. Flash on Linux has always been problematic, so killing off Flash will make life much easier for Linux users.
Be sure to subscribe for Linux News!
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https://www.youtube.com/watch?v=59k34IdKv7I
Linux malware isn't as widespread as malware for Windows, but it is getting more sophisticated. Here's an article about a new Linux trojan malware that can make your computer do Monero mining, steal passwords, replicate itself via Secure Shell, and install a Linux rootkit. But, is it as serious as the tech press makes it sound? What if you practice good Linux security and hardening?
Link to article:
https://www.zdnet.com/article/new-linux-crypto-miner-steals-your-root-password-and-disables-your-antivirus/
Purchase link for my "Mastering Linux Security and Hardening" book:
https://www.packtpub.com/networking-and-servers/mastering-linux-security-and-hardening
Purchase link for my "Mastering Linux Security and Hardening" video course:
https://www.packtpub.com/networking-and-servers/mastering-linux-security-and-hardening-video
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https://www.youtube.com/watch?v=AsJQzQpnRGs
In another video, we looked at the Linux filesystem and discussed how the Linux directory structure is laid out. In this video, we'll look at the different types of Linux files. There are seven different Linux file types, and you'll want to be familiar with them as a Linux administrator.
A linux administrator tutorial from beginlinux guru.
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https://www.youtube.com/watch?v=7KTk8NVB1N8