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What does hacking really look like – and how do attackers actually break into systems? In this video, I sit down with Casey Erdmann, Red Team Engineer and author of Red Team Engineering, to pull back the curtain on how real-world cyberattacks work, what cybersecurity is actually like to learn, and what most people get completely wrong about hacking.
OpenSSH is a fantastic tool for remotely managing Linux servers, but with great power comes great responsibility! If a threat actor is able to gain access to OpenSSH on your Linux server, then they have full access to cause all kinds of mischief. In this video, Jay goes over 5 must-have tweaks to strengthen the security of OpenSSH on your server.
Thanks to Linode for sponsoring this video. Support LearnLinuxTV and spin up your very own Linux server by checking out their awesome cloud platform.
Have you considered using a YubiKey? In this complete guide, you’ll learn everything you need in order to get started with these awesome security keys. We’ll go over the differences between the available models, which one you should buy, as well as how to set it up to protect local logon for Linux, macOS, and Windows. In addition, two methods for protecting OpenSSH via YubiKeys are also covered.
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…)TheLog4Shell vulnerability is taking the Internet by storm, and it’s already being used for real-world attacks. In this video, Jay discusses the details around Log4Shell vulnerability in Log4j, and also CrowdSec’s community-based response to the situation.
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.
Keeping track of user accounts is very important, especially as a Linux server administrator. In this episode of Linux Essentials, we’ll explore user and password expiration. This will include examples regarding locking passwords, the chage command, and more!
Thank you to Linode for sponsoring this video. Check them out here and get your very own Linux server set up in minutes!
(more…)System Administrator Appreciation Day is a special day of recognition that occurs on the last Friday of July each year. SysAdmin Day is intended to bring recognition to all the hard work that System Administrators perform to keep our systems running. In this video, I discuss SysAdmin Day (as well as many other topics surrounding the line of work) with Joao Correia from CloudLinux, and Brian from Admin Magazine. This was an awesome discussion, so don’t miss out!
I had a chance to sit down with Joao Correia from CloudLinux and Brian Osborn from Admin Magazine to talk about System Administrators Appreciation Day, System Administration in general, and why we need to help our Admins feel more appreciated it.
