Strange as it may seem to older generations of computer users who grew up maintaining an elaborate collection of nested subfolders, thanks to powerful search functions now being the default in operating systems, as well as the way phones and tablets obfuscate their file structure, and cloud storage, high school graduates don’t see their hard drives the same way.
Source: Students don’t know what files and folders are, professors say | PC Gamer
Either way, actual usage of the fediverse continues to increase month by month, including through January, meaning that while some people signed up and never used it, those who are using it, are using it more and more.
Source: Lazy Reporters Claiming Fediverse Is ‘Slumping,’ Despite Massive Increase In Usage | Techdirt
This quick tutorial provides steps to use the netstat, nmap and lsof command to check the ports in use and view the application that is utilizing the port.
Source: How to check if port is in use on Linux or Unix – nixCraft
So how do you convert such input? The answer is to use jq or dasel command-line utilities.
Source: How to convert JSON to CSV using Linux / Unix shell – nixCraft
In remarks to the Daily Dot, crimew said that they had made the discovery while searching for Jenkins servers on the specialized search engine Shodan. Jenkins provides automation servers that aid in the building, testing, and deployment of software. Shodan is used throughout the cybersecurity community to locate servers exposed to the open internet
I recently read that TCP BBR has significantly increased throughput and reduced latency for connections on Google’s internal backbone networks and google.com and YouTube Web servers throughput by 4 percent on average globally – and by more than 14 percent in some countries. The TCP BBR patch needs to be applied to the Linux kernel.
Source: Increase Linux Internet speed with TCP BBR congestion control – nixCraft
If you are currently using CentOS 8, you will have to find an alternative operating system. This is because its end-of-life cycle has been cut short in December 2021. But if you use CentOS 7, you do not have to take any action right now. This is because CentOS 7 will reach its End-of-Life on June 30th, 2024.
Source: CentOS Replacements For Your Production Linux Servers
Stupid me installed CentOS 8 in December 2020 instead of 7 without reading the news about this.
This class of hack is known as a relay attack, a close cousin of the person-in-the-middle attack. In its simplest form, a relay attack requires two attackers. In the case of the locked Tesla, the first attacker, which we’ll call Attacker 1, is in close proximity to the car while it’s out of range of the authenticating phone. Attacker 2, meanwhile, is in close proximity to the legitimate phone used to unlock the vehicle. Attacker 1 and Attacker 2 have an open Internet connection that allows them to exchange data.
Source: New Bluetooth hack can unlock your Tesla—and all kinds of other devices | Ars Technica
Fermat’s algorithm was based on the fact that any odd number can be expressed as the difference between two squares. When the factors are near the root of the number, they can be calculated easily and quickly. The method isn’t feasible when factors are truly random and hence far apart.
Source: Researcher uses 379-year-old algorithm to crack crypto keys found in the wild | Ars Technica
BBR is, in my opinion, one of the most critical improvements to Linux networking stacks in recent years. This page demonstrated how to enable and set up BBR on Linux based system.
Source: Increase Linux Internet speed with TCP BBR congestion control – nixCraft