security – Page 4 – Learn Linux TV

Enterprise Linux Security Episode 67 – No One Else’s Computer
We’ve all heard the cloud referred to as “Someone Else’s Computer”, but what do you do if you find your data is on No One Else’s Computer? In this example, there was a happy ending (data was restored) but it’s still an important consideration all the same. What do you do if your cloud provider all of a sudden doesn’t have your data? In this episode, Jay and Joao discuss a recent situation in which Azure customers found themselves in a bit of a bad situation.

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Relevant Articles
- Azure DevOps Outage in South Brazil
- This typo sparked a Microsoft Azure outage
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Enterprise Linux Security Episode 66 – Job Security
In this episode, Jay and Joao discuss another form of security, job security! Throughout the series, we’ve advised and educated on enhancing the security of your enterprise network, but in this episode the focus is on YOU. Specifically, how to safeguard yourself from turnover, raise awareness of your importance to your organization, and how to navigate potential “awkward” conversations that System Administrators may find themselves having with their boss. Don’t miss this episode!

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Enterprise Linux Security Episode 64 – FIPS
There are many security certifications that an organization can utilize to prove compliance with one or more standards, and being in compliance can bring additional benefits and opportunities. Federal Information Processing Standard (FIPS) is one of these certifications, and in this episode, Jay and Joao are joined by Nikos from Tuxcare to discuss FIPS and why your organization might consider it.

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Enterprise Linux Security Episode 61 – The Principle of Least Privilege
With the recent takeover of the “Linus Tech Tips” YouTube channel, what can we learn? In this episode, Jay and Joao will discuss some of the ways you can prevent such an event from happening to you (and it’s not just YouTube that’s a target).

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Enterprise Linux Security Episode 58 – Tales from the Red Team
Tasks that penetration testers and security analysis perform in order to expose security weaknesses may seem like a mysterious and complicated art. Most of the time, these tasks are considered “secret sauce” and unless you work for a red team, you may not be aware of what it may look like while someone attempts to gain access from the outside. In this episode, Jay and Joao discuss a report released by CISA, that provides a very detailed account at what goes into this type of work. This report is definitely a must-read, and this episode is a must-listen!

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Relevant Articles
- CISA Red Team Shares Key Findings to Improve Monitoring and Hardening of Networks
- Ticket Granting Tickets (one of the strategies used by CISA)https://learnlinux.link/golden-ticket
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Enterprise Linux Security Episode 57 – Record Breaking DDoS Attacks
DDoS (Denial of Service) attacks are incredibly common, and apparently, are breaking records. In this episode, Jay and Joao discuss a recent blog post from Cloudflare regarding how popular this attack vector is becoming nowadays, as well as a quick refresher on Denial of Service attacks in general.

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Relevant Articles
- Cloudflare mitigates record-breaking 71 million request-per-second DDoS attack
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How to Set Up KernelCare Enterprise for Reboot-Free Live Patching

Live patching enables Linux server administrators to benefit from critical security fixes right now, with the flexibility of rebooting later. There are multiple services that facilitate live patching, and in this video Jay goes over how to set up KernelCare Enterprise for this very purpose. This tutorial will go over what KCE is, how to install it, check for patches, and more!

Thanks to TuxCare for sponsoring today’s video.

Check out KernelCare Enterprise here. You can find a list of patches that KCE has available here.

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Enterprise Linux Security Episode 53 – Digital Twins
By using clever infrastructure engineering strategies to increase reliability, you can minimize disruption and downtime for your organization. Another technique to consider is the concept of Digital Twin – having a full system clone/mirror you can use to test enhancements, perform a root-cause analysis, or more. In this episode, Jay and Joao discuss Digital Twins and how the concept can potentially help your organization.

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Relevant Articles
- Digital Twin (Wikipedia article)
- More malicious packages posted to online repository. This time it’s PyPI
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Enterprise Linux Security Episode 51 – Samba in the Kernel, What Could Possibly Go Wrong?!
Adding unnecessary components to the Kernel is generally a bad idea, as it increases its threat surface. In this episode, Jay and Joao discuss a recent story that’s a perfect example of why it’s important to keep this under control. A vulnerability was recently discovered in the Linux kernel that scored the highest possible rating, and it all started when ksmbd was added.

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5 Must Have Tweaks to Secure OpenSSH

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.

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Enterprise Linux Security Episode 46 – Monitoring
If you’re in charge of maintaining servers and related equipment, what should you monitor? While monitoring is something that will grow and expand over time, Jay and Joao will give you some tips in this episode to get you started. Check out this episode for some tips on some of the baseline checks you should implement with your monitoring solution of choice.

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Enterprise Linux Security Episode 43 – Grand Theft Data
In this episode, Jay and Joao discuss a handful of cybersecurity events in the news. While none of these stories are super exciting from a technical standpoint, there’s definitely some lessons to be learned. As part of this discussion, Jay and Joao will talk about topics related to the recent Grand Theft Auto leak, as breaches that targeted Uber, 2k games, and more.

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