Despite the widespread adoption of Ethernet networks, DSL-based communication technologies remain relevant to this day. DSL is still commonly found in last-mile networks for connecting subscriber equipment to Internet service provider networks, and recently, this technology has increasingly been used in building local networks, for example, in industrial applications, where DSL serves as […]
One of the most effective methods for increasing the energy efficiency of modern data centers and reducing operational costs is isolation systems. They are also known as hot and cold aisle containment systems. The primary consumer of excess power in a data center is the cooling system. Consequently, the lower the load on it (reducing electricity bills, even load distribution, reducing wear on engineering […]
Erik Moqvist, the creator of the Simba platform and the cantools toolkit, is developing a new Monolinux distribution focused on creating embedded Linux systems for standalone execution of specific applications written in C. Notably, the distribution packages the software as a single statically compiled executable file, including all components necessary for the application to run (essentially, the distribution constitutes the Linux kernel […]
A significant release of the password cracking program hashcat 6.0.0 has been published, claiming to be the fastest and most functional in its field. Hashcat offers five cracking modes and supports over 300 optimized password hashing algorithms. Crack computations can be parallelized leveraging all available system computing resources, including the use of CPU vector instructions, GPU, and others […]
In Firefox and Chrome, a feature of processing search queries entered in the address bar has been identified, leading to information leakage through the provider's DNS server. The essence of the problem is that if a search query consists of only one word, the browser first tries to resolve the presence of a host with that name in DNS, assuming that the user is trying to open a subdomain, and only then redirects […]
Malware analysts and computer security researchers strive to collect as many samples of new botnets as possible. To this end, they use honeypots.… But what if one wants to observe malware in real conditions? Do you put your server, router at risk? And what if there is no suitable device? These questions led me to create bhunter — a tool for gaining access […]
Our conference season has successfully kicked off, but the tech shows continue! This week, we will discuss Java, DevOps, testing, and distributed systems. The schedule for this week: Wednesday: Java and distributed evening — First cup of coffee with JPoint / Ivan Ugliansky; — Hydra's Heads / Andrey Satarin. Thursday: DevOps — DevOops at […]
Hello again!.. With the upcoming launch of the "Software Architect" course, we have prepared another useful translation. Service Mesh is a configurable infrastructure layer with low latency, needed to handle a large volume of network interprocess communications between application programming interfaces (APIs). Service Mesh ensures fast, reliable, and secure communication between containerized and often ephemeral services within application infrastructure. […]
The release of Wi-Fi daemon IWD 1.8 (iNet Wireless Daemon) is now available, developed by Intel as an alternative to wpa_supplicant for connecting Linux systems to a wireless network. IWD can be used standalone or as a backend for network configurators such as Network Manager and ConnMan. The project is suitable for embedded devices and optimized for minimal power consumption […]
The new release of Dropbear 2020.79, a compact SSH server and client, distributed under the MIT license and primarily used on embedded systems such as wireless routers, has been introduced. Dropbear is characterized by low memory usage (with static linking to uClibc, it takes only 110kB), the ability to disable unnecessary functionality at the build stage, and support for building the client and server in a single executable file […]
The stable release of FFmpeg 4.3 ("4:3") has occurred—a set of free libraries with open source code that allows recording, converting, and streaming digital audio and video in various formats. FFmpeg 4.3 includes libraries libavutil 56.51.100, libavcodec 58.91.100, libavformat 58.45.100, libavdevice 58.10.100, libavfilter 7.85.100, libswscale 5.7.100, libswresample 3.7.100, and libpostproc 55.7.100. Key changes include support for the Vulkan API, speed enhancements […]
I spent the first quarter of 2020 preparing for the OSCP exam. Searching for information on Google and numerous "blind" attempts took up all my free time. It turned out to be especially challenging to understand privilege escalation mechanisms. The PWK course pays great attention to this topic, but there are always not enough methodological materials. There are plenty of manuals online with useful commands, but I […]
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