How to become a Linux security expert?

Wanted: Linux Security Experts Years ago it was a challenge to find screenshots of devices running Linux. Nowadays, Linux can power phones, TV’s, computer systems, mainframes, and many more devices. With more devices, the demand for Linux knowledge will continue to grow. At the same time, the demand for security is higher than ever. All the media attention and regulations like GDPR, asks for more Linux security specialists. In this post, the goal is to answer the question: How to become a Linux […]

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The state of Linux security in 2017

Linux security (2017 edition) The year is closing, so it is time to review Linux security. Like last year, we look at the state of Linux security. A collection of the finest moments. Did we forget something important? Let us know in the comments. This post will remain updated in the upcoming weeks. As this post may appear on HN, Reddit, Slashdot, and other high-traffic sites, this post is heavily cached. Comments may show up with some delay.   January: MongoDB, Debian […]

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Linux security myths

Myth busting: Linux security As the author of Lynis, I have to run several Linux systems for testing Linux security defenses. And if you do something long enough, some get to see you as a Linux security expert. When that happens, you get asked questions. Surprisingly they are often related to some of the myths. Time to share a few I got asked. If you received this link from me directly, then most likely you asked one :) Linux systems […]

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The State of Linux Security

Linux Security (2016) Introduction In the last 10 years, GNU/Linux achieved something some foreseen as almost impossible: powering both the smallest and biggest devices in the world, and everything in between. Only the desktop is not a conquered terrain yet. The year 2016 had an impact on the world. Both from a real life perspective, as digitally. Some people found their personal details leaked on the internet, others found their software being backdoored. Let’s have a look back on what […]

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Linux security guide: the extended version

Feeling overwhelmed with the resources available to secure your Linux system? With this Linux security guide, we walk step-by-step through the options, tools, and resources. After reading this article, you will be able to make educated decisions about what Linux security defenses to implement for your systems. You will be introduced to the right tools that help you automate and test your improvements. Instead, related articles and resources will be available in the text. The goal is to make this guide into […]

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The Most Influential Linux Security Blogs

Linux Security Blogs Finding quality blogs about Linux security can be challenging. We made an effort to seek the best and most influential blogs on the internet. What makes it influential? It should have quality articles, regularly updated and tailored to Linux or UNIX security. The countless “How to” websites are skipped. Months of searching and reading resulted in a list of blogs, sorted by category. If you are interested in the developments on Linux security, add them to your […]

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Dealing with Linux Malware, Insights by the Author of rkhunter

Linux Malware Malicious software plague computers for more than 40 years. It is hard to think this threat will ever stop. The Linux platform definitely has their share of malware, although many people never experienced it firsthand. Let’s dive into this subject and discover why your system might actually being compromised at this very moment. The types of malware To understand the risks, you have to understand the threats and weaknesses. When we talk about malware, there are different family […]

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Differences Between iptables and nftables Explained

iptables VS nftables The seasoned Linux administrator will be familiar with iptables, the network traffic filter. If you ever configured a Linux system with an ethernet bridge configuration, you might even have worked with ebtables. Or possibly you wanted to filter ARP traffic and used arptables? Newcomer nftables has arrived, with the purpose to replace iptables, ip6tables, ebtables and arptables. As with every big upcoming change, it is good to know the differences. We explain what makes nftables different to […]

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