Objective: It is necessary to organize a VPN Tunnel between two devices, such as Mikrotik and Juniper models from the SRX series. What we have: From Mikrotik, we've chosen a model that supports IPSec hardware encryption from Mikrotik's wiki, which we found to be compact and affordable, specifically the Mikrotik hEXS. A USB modem was purchased from a nearby mobile operator, the model was Huawei […]
Before reading this article, it is recommended to familiarize yourself with the previous article: Audio over Bluetooth: a comprehensive overview of profiles, codecs, and devices. Some users of wireless headphones note low sound quality and a lack of high frequencies when using the standard Bluetooth codec SBC, which is supported by all audio devices. A common recommendation for improving sound is to purchase devices and headphones that support aptX codecs and […]
LLC 'NTC IT ROSA' ('ROSA') has released a new version of the OS based on the Linux kernel ROSA Enterprise Desktop X4 (RED X4) — a domestic platform in the ROSA Enterprise Desktop series. This platform is the commercial version of the free line of ROSA Fresh distributions. The OS has a wide range of software and includes utilities created by 'ROSA' to facilitate working with the OS and integration with other […]
An experimental release of the open implementation of the Win32 API — Wine 4.10 is now available. Since the release of version 4.9, 44 bug reports have been closed and 431 changes have been made. The most significant changes include: More than a hundred DLLs are configured by default with the built-in msvcrt library (provided by the Wine project, and the DLLs from Windows) in the PE (Portable Executable) format; Expanded support for PnP (Plug […]
For many years, optical media has been the basis for data transmission. It is hard to imagine a reader unfamiliar with these technologies, however, it is impossible to proceed in my series of articles without at least a brief description. Contents of the series of articles: Part 1: General architecture of the CATV network Part 2: Composition and form of the signal Part 3: Analog component of the signal Part 4: Digital component of the signal […]
Good day. In my last article, I touched upon the topic of tabletop role-playing contests, which, like various indie jams for software developers, help concepts and drafts evolve into something greater. This time, I will talk about the history of another of my contest projects. I have encountered tabletop role-playing contests both domestically (called 'Kashevar') and internationally (the annual Game Chef). At the international contest, like […]
Due to the widespread release of smartphones without a 3.5 mm audio jack, wireless Bluetooth headphones have become the primary way for many to listen to music and communicate in headset mode. Manufacturers of wireless devices do not always provide detailed product specifications, and articles about Bluetooth audio on the internet are often contradictory, at times incorrect, fail to cover all features, and frequently replicate the same inaccurate information […]
In this article, we will discuss the basics of capturing and analyzing SIP traffic generated by the 3CX phone system. The article is aimed at novice system administrators or regular users whose responsibilities include managing telephony. For a deeper dive into the topic, we recommend taking the Advanced 3CX training course. 3CX V16 allows for SIP traffic capture directly through the server's web interface and saves it in the standard Wireshark PCAP format. […]
A group of researchers from Ledger, a company that produces hardware wallets for cryptocurrency, has discovered several vulnerabilities in Hardware Security Module (HSM) devices that could be exploited to extract keys or conduct remote attacks to tamper with HSM device firmware. Currently, the report on this issue is only available in French, with an English version planned for publication in August during the Blackhat conference […]
After four and a half years of development, the free project LMMS 1.2 has been released, providing a cross-platform alternative to commercial music production software like FL Studio and GarageBand. The project is coded in C++ (with a Qt interface) and is distributed under the GPLv2 license. Ready-made builds are available for Linux (in AppImage format), macOS, and Windows. The program […]
ROSA has introduced the ROSA Enterprise Desktop X4 distribution, aimed at corporate use and based on the ROSA Desktop Fresh 2016.1 platform with the KDE4 desktop. The focus during the preparation of the distribution is on stability, including only tested components that have been vetted by users of ROSA Desktop Fresh. Installation ISO images are not publicly available and are provided […]
This year saw the release of the ITIL 4 update. We explain how certification for specialists in IT service management will proceed under the new standard. / Unsplash / Helloquence How the certification process is changing The last update for the ITIL 3 library was presented eight years ago. During this time, the IT industry has undergone significant changes and has 'acquired' new technologies. Many companies have started implementing practices […]