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There’s no shortage of monitoring tools available for Linux servers and workstations, but htop is a a classic. By installing htop, you can see an overview of your resource usage, including meters for CPU, RAM, Swap, and more. In this video, I’ll give you an overview of htop.
In various tutorials throughout the history of LearnLinuxTV, we’ve gone over the importance of using public keys with OpenSSH. But what do you do when you have multiple clients you work with, how do you manage keys between them? In this video, we’ll go through an example scenario where we have three clients, and we need to maintain multiple SSH keys for each.
When creating a deployment image or template for distributing Linux to devices or servers, it’s a good idea to make sure that you reset the host keys for SSH. In this video, I’ll show you an easy method I found for automating this.
You can find the systemd unit file I used in the video here.
(more…)The ps command is useful for taking a look at the processes that are running on your Linux system. In this video, I’ll show you the basics of the ps command, and some variations you can use to show the output in different ways.
In this episode of Awesome Linux Tools, the spotlight is on Lynis – a really awesome utility you can use to get a better understanding of the overall security hygiene of your server. In this video, Jay will show you how to install it, and also how to run an audit.
The number of command combinations you can come up with on the Linux command-line is seemingly endless, and there are some real gems out there that you might not know about. In this video, Jay goes over some of his favorite command combos, time-saving tricks, and other various tips he wish he learned sooner. In this video, you’ll find all kinds of things to add to your command-line toolbox.
The OpenSSH client config file is a very powerful feature, that too many people ignore. You can use the client config file to simplify your SSH connections, by including preset options per host. In this video, I’ll go over the basics of this config file.
When you’re working with Linux servers, you may or may not always have access to a GUI, which is why it’s important to learn at least one command-line text editor. In this video, we’ll explore the core fundamentals of nano. nano is a text editor that’s among the easiest to learn.
MAAS (Metal as a Service) gives you the ability to provision physical and virtual servers via an easy to use web console. You can use MAAS to deploy Ubuntu with ease, and it even supports PXE boot in order to provide you with a full deployment solution. In this video, you’ll get an overview of MAAS and how to set it up.
Thanks to Linode for sponsoring this tutorial. Check them out and claim $100 in free credit toward your new account.
(more…)In the final episode of LearnLinuxTV’s Proxmox VE tutorial series, we explore the concept of high availability. This will ensure that our most important virtual machines are always running, even if one of the nodes in our cluster stops responding.
Setting up a Proxmox VE cluster enables you to benefit from multiple servers to share load between, and also gives you access to live migration. In this video, we’ll create our very own cluster and add two additional Proxmox VE servers.
With Windows 11 having been recently released, I decided to refresh my dual-boot video for Ubuntu. In this video, I’ll go over the process of setting up a dual-boot between Windows 11 and Ubuntu, so that way by the end of the video you’ll have both platforms set up and ready to go.
