Blog Section
There is a vast amount of information online about creating Wi-Fi access points based on the Raspberry Pi single-board computer. Typically, it is assumed that the native operating system for the 'Pi'—Raspbian—will be used. As an enthusiast of RPM-based systems, I couldn't pass by this little marvel without trying my favorite CentOS on it. This article provides instructions for creating a 5GHz/AC Wi-Fi router […]
Today, many IT companies are facing the challenge of finding employees in their region. An increasing number of job offers in the labor market are related to the possibility of remote work. Full-time remote work implies that the employer and employee are bound by clear labor obligations: a contract or employment agreement; most often, a defined regulated work schedule, stable salary, vacations and […]
The FESCo committee (Fedora Engineering Steering Committee), responsible for the technical development of the Fedora distribution, has approved the discontinuation of the main repositories for the i686 architecture. It should be noted that the initial consideration of this proposal was postponed to study the possible negative impact of discontinuing the supply of packages for i686 on local module builds. This decision complements the already implemented decision in the rawhide branch to stop the creation of bootable […]
Thanks to the open-source Chromium, Microsoft has made its first significant and positive impact on the Google Chrome browser. Reports indicate that this new feature should resolve a long-standing issue with 'Chrome'—its 'greediness' regarding laptop battery consumption. Shawn Pickett from Microsoft stated that media content is cached to disk during download and playback. And this […]
Today's lesson is an introduction to Cisco routers. Before we dive into the material, I want to congratulate everyone watching my course, as nearly a million people have viewed the 'Day 1' video lesson to date. I thank all the users who contributed to the study of the CCNA video course. Today we will cover three topics: the router as a physical device, a brief […]
The Open Wireless Link project, which examines Apple's proprietary wireless protocols, presented a report at the USENIX 2019 conference analyzing vulnerabilities in Apple's wireless protocols (including possibilities for conducting Man-in-the-Middle attacks to modify files transmitted between devices, Denial of Service attacks to block device interactions and cause device hangs, as well as using AirDrop for user identification and tracking). During the study […]
The release of the nftables 0.9.2 packet filter has taken place, evolving as a replacement for iptables, ip6tables, arptables, and ebtables by unifying packet filtering interfaces for IPv4, IPv6, ARP, and network bridges. The nftables package includes user-space packet filter components, while the kernel-level operation is provided by the nf_tables subsystem integrated into the Linux kernel […]
This will be a narrative about the impression of a book, and we will also explore some concepts and knowledge that were learned thanks to this book. Architecture Can you, while reading this publication, give a clear answer to the question, what is architecture? What is architecture in the context of programming and design? What role does it play? There is quite a lot of ambiguity in this term. […]
A bit about what school 'informatics' was like in the 90s and why all programmers were essentially self-taught back then. What kids were taught to program In the early 90s, Moscow schools began selectively outfitting classrooms with computers. The buildings immediately had bars placed on the windows and heavy, iron-clad doors installed. An informatics teacher appeared from somewhere (looking like the most important person […]
A group of researchers from Georgetown University and the U.S. Naval Research Laboratory analyzed the resilience of the anonymous Tor network to Denial of Service (DoS) attacks. Research on compromising the Tor network mainly revolves around censorship (blocking access to Tor), identifying requests through Tor in transit traffic, and analyzing the correlation of traffic flows before the entry node and after the exit node […]
Authors: Ted Yang, Pritam Shah, and the Technical Specifications Committee (Carlos Alberto, Bogdan Drutu, Sergey Kanjaliev, and Yuri Shkuro). The collaborative project is titled: http://opentelemetry.io In brief: We are creating a new unified set of libraries and specifications for telemetry observability. It will combine the OpenTracing and OpenCensus projects and provide a supported way for migration. The reference implementation on […]
Today we will start studying routers. If you have completed my video course from lessons one to seventeen, you have already learned the basics of switches. Now we move on to the next device — the router. As you may know from the previous video lesson, one of the topics of the CCNA course is called Cisco Switching & Routing. In this series, we will not study […]