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eBPF for Advanced Linux Infrastructure Monitoring

by Odysseas Lamztidis A year has passed since the pandemic left us spending the better part of our days sheltering inside our homes. It has been a challenging time for developers, Sysadmins, and entire IT teams for that matter who began to juggle the task of monitoring and troubleshooting an influx of data within their systems and...

How to set up a CrowdSec multi-server installation

by Manuel Sabban Introduction CrowdSec is an open-source & collaborative security solution built to secure Internet-exposed Linux services, servers, containers, or virtual machines with a server-side agent. It is a modernized version of Fail2ban which was a great source of inspiration to the project founders. CrowdSec...

Develop a Linux command-line Tool to Track and Plot Covid-19 Stats

by Nawaz Abbasi It’s been over a year and we are still fighting with the pandemic at almost every aspect of our life. Thanks to technology, we have various tools and mechanisms to track Covid-19 related metrics which help us make informed decisions. This introductory-level tutorial discusses developing one such tool at just Linux...

FSF’s LibrePlanet 2021 Free Software Conference Is Next Weekend, Online Only

by George Whittaker On Saturday and Sunday, March 20th and 21st, 2021, free software supporters from all over the world will log in to share knowledge and experiences, and to socialize with others within the free software community. This year’s theme is “Empowering Users,” and keynotes will be Julia Reda, Nathan Freitas, and Nadya...

Review: The New weLees Visual LVM, a new style of LVM management, has been released

by George Whittaker Maintenance of the storage system is a daily job for system administrators. Linux provides users with a wealth of storage capabilities, and powerful built-in maintenance tools. However, these tools are hardly friendly to system administrators while generally considerable effort is required for mastery. As...

Nvidia Linux drivers causing random hard crashes and now a major security risk still not fixed after 5+ months

Image The recent fiasco with Nvidia trying to block Hardware Unboxed from future GPU review samples for the content of their review is one example of how they choose to play this game. This hatred is not only shared by reviewers, but also developers and especially Linux users. The infamous Torvalds...

Parallel shells with xargs: Utilize all your cpu cores on UNIX and Windows

by Charles Fisher Introduction One particular frustration with the UNIX shell is the inability to easily schedule multiple, concurrent tasks that fully utilize CPU cores presented on modern systems. The example of focus in this article is file compression, but the problem rises with many computationally intensive tasks, such...

Bypassing Deep Packet Inspection: Tunneling Traffic Over TLS VPN

by Dmitriy Kuptsov In some countries, network operators employ deep packet inspection techniques to block certain types of traffic. For example, Virtual Private Network (VPN) traffic can be analyzed and blocked to prevent users from sending encrypted packets over such networks. By observing that HTTPS works all over the world...

How to Save Time Running Automated Tests with Parallel CI Machines

by Artur Trzop Automated tests are part of many programming projects, ensuring the software is flawless. The bigger the project, the larger the test suite can be.This can result in automated tests taking a lot of time to run. In this article you will learn how to run automated tests faster with parallel Continuous Integration machines...

The KISS Web Development Framework

by Blake McBride Perhaps the most popular platform for applications is the web. There are many reasons for this including portability across platforms, no need to update the program, data backup, sharing data with others, and many more. This popularity has driven many of us to the platform. Unfortunately, the platform is a bit...

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