Blog Section
Hello, Habr users. Today, I want to talk about how to write your own simple NTP client. Essentially, the discussion will focus on packet structure and how to process responses from the NTP server. The code will be written in Python because, in my opinion, there simply isn’t a better language for such tasks. Experts will notice the similarity of the code with ntplib […]
One of the most impressive new products showcased at the annual CES 2019 exhibition was the 219-inch display Samsung The Wall. Sony developers also decided to join in and created their own giant Micro LED display, standing 17 feet (5.18 m) tall and 63 feet (19.20 m) wide. The fantastic display was presented at the National Association of Broadcasters exhibition in Las Vegas. The massive display supports a resolution of […]
Preface Users, developers, and administrators of MS SQL Server databases often face performance issues with databases or the DBMS as a whole, making monitoring MS SQL Server quite relevant. This article serves as a supplement to the article "Using Zabbix to Monitor MS SQL Server Database" and will cover some aspects of monitoring MS SQL Server, […]
— What frequency range does this antenna cover? — I don’t know, check it. — HOW?!?! How do you determine what antenna you have in your hands if it has no markings? How can you figure out which antenna is better or worse? This problem has been bothering me for a long time. This article explains in simple terms the methodology for measuring antenna characteristics and how to determine the frequency range of an antenna. Experienced radio engineers […]
Foreword Often there is a need to inform the administrator in real time about problems related to the database (DB). This article will describe what needs to be configured in Zabbix to monitor the MS SQL Server database. I would like to note that a detailed setup guide will not be provided, but formulas and general recommendations, as well as detailed descriptions will be included […]
Good day to everyone! It so happened that in our company we have been gradually transitioning to MikroTik devices over the past two years. The main nodes are built on CCR1072, while local connection points for computers are on simpler devices. Naturally, there is also an IPSEC tunnel network merging, and in this case, the configuration is quite simple and not troublesome, especially since there is […]
The recently released Microsoft Edge browser based on Chromium will have its own built-in translator that can automatically translate web pages into other languages. Reddit users discovered that Microsoft quietly enabled this new feature in Edge Canary. It moves the Microsoft Translator icon directly into the address bar. Now, whenever the browser loads a website in a language different from the one set in the system, […]
The TechCrunch resource reported that a hacking group breached several websites associated with the FBI and uploaded their content to the Internet, including dozens of files containing personal data of thousands of federal agents and law enforcement personnel. The hackers compromised three sites linked to the FBI National Academy Association, a union of various departments across the U.S. promoting training and guidance for agents and […]
The release of the desktop-oriented distribution GhostBSD 19.04 has taken place, built on the basis of TrueOS and offering the MATE desktop environment. By default, GhostBSD uses the OpenRC initialization system and the ZFS file system. Both live mode operation and installation on a hard drive are supported (it uses a custom installer, ginstall, written in Python). Boot images are created for the amd64 architecture (2.7 GB). In […]
Earlier this year, Intel unveiled one of its most unusual and expensive desktop processors — the Core i9-9990XE. Remarkable features are not the only thing that makes this model standout; its distribution method is unusual as well: Intel sells this processor at closed auctions to a select group of desktop PC manufacturers. However, the well-known store CaseKing.de has decided to offer the Core i9-9990XE […]
Starting today, real-time ray tracing is supported not only by GeForce RTX graphics cards but also by some GeForce GTX 16xx and 10xx cards. The GeForce Game Ready 425.31 WHQL driver, which enables this feature for the graphics cards, can now be downloaded from NVIDIA's official site or updated through the GeForce Now application. A list of graphics cards supporting real-time ray tracing […]
In October 2017, it unexpectedly became clear that there was a serious vulnerability in the Wi-Fi Protected Access II (WPA2) protocol for encrypting Wi-Fi traffic, which allows users' passwords to be revealed and subsequently enables eavesdropping on the victim's data exchange. The vulnerability, named KRACK (short for Key Reinstallation Attack), was discovered by experts Mathy Vanhoef and Eyal Ronen. After discovery […]