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Bitdefender has opened the code for the hypervisor introspection technology HVI

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Bitdefender has announced the open-sourcing of its Hypervisor Introspection (HVI) technology. It was developed in collaboration with the Xen project. The project's history began in 2015 when the libbdvmi library was introduced for Hypervisor 4.6. This library allowed virtual machines and software that searches for malicious code to be 'friends'. Previously, specialized malware could remain undetected for a long time […]

Receiving all Bluetooth channels simultaneously on SDR with CUDA? Easy

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Recently, colleagues in the field have independently started asking me: how to receive all Bluetooth channels simultaneously from one SDR receiver? The bandwidth allows it, and there are SDRs with an output bandwidth of 80 MHz or more. It is certainly possible to do this on an FPGA, but the development time for such a solution will be quite significant. I have long known that it can be done on […]

Revelations of a sysadmin: how my family perceives my work

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System Administrator Day (or rather, the day to recognize their contributions) is a wonderful opportunity to reflect on oneself from an outside perspective. To see oneself and one's work through the eyes of loved ones. The title 'system administrator' sounds quite vague. Sysadmins are responsible for a wide range of different devices, from desktops to servers, printers, and air conditioners. Therefore, when introducing oneself to another IT professional, it's essential to add at least one qualification. For example, […]

Critical vulnerability in the WordPress plugin wpDiscuz, which has 80,000 installations

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A dangerous vulnerability has been discovered in the WordPress plugin wpDiscuz, which is installed on over 80,000 sites. This flaw allows anyone to upload any file to the server without authentication, including PHP files, thereby executing their code on the server. Versions affected are from 7.0.0 to 7.0.4 inclusive. The vulnerability has been fixed in release 7.0.5. The wpDiscuz plugin allows the use of AJAX for […]

Release of the Apache Hadoop 3.3 data processing platform

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After a year and a half of development, the Apache Software Foundation has released Apache Hadoop 3.3.0, a free platform designed for distributed processing of large volumes of data using the map/reduce paradigm, which divides tasks into many smaller, isolated fragments, each of which can be executed on a separate node of the cluster. A Hadoop-based storage can scale across thousands of nodes and […]

Release Wine 5.14

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An experimental release of the open implementation of WinAPI — Wine 5.14 — has taken place. Since the release of version 5.13, 26 bug reports have been closed and 302 changes made. The most significant changes include: Continued restructuring support for the console. An initial version of the Webdings font has been proposed. The conversion of MSVCRT libraries to PE format has begun. Bug reports related to the operation of games and applications have been closed: […]

Debian 10.5 update

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The fifth corrective update for the Debian 10 distribution has been released, which includes accumulated package updates and fixes in the installer. The release contains 101 updates addressing stability issues and 62 updates addressing vulnerabilities. Among the changes in Debian 10.5 is the fix for a vulnerability in GRUB2 that allows bypassing the UEFI Secure Boot mechanism and enables the installation of unverified malicious software. […]

Tales from the Duty Crypt

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Preliminary notification: this post is strictly a Friday one and more entertaining than technical. You can expect fun stories about engineering mishaps, tales from the dark side of working with a mobile operator, and other lighthearted anecdotes. If I embellish any details, it’s only for the sake of storytelling, and if I lie, those incidents are from long ago, so it won't matter to anyone. […]

The wayland-utils package 1.0.0 has been released

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The developers of Wayland have introduced the first release of the new package wayland-utils, which will include utilities related to Wayland, similar to how the wayland-protocols package provides additional protocols and extensions. Currently, it includes only one utility, wayland-info, designed to display information about the Wayland protocols supported by the current composite server. The utility stands alone […]

Vulnerabilities in the X.Org Server and libX11

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Two vulnerabilities have been identified in X.Org Server and libX11: CVE-2020-14347 — a lack of memory initialization when allocating buffers for pixmaps via the AllocatePixmap() call can lead to the X client leaking memory content from the heap when the X server is running with elevated privileges. This leak can be used to bypass address space layout randomization (ASLR). When combined with other vulnerabilities, this issue […]

Docker and everything, everything, everything.

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TL;DR: an overview guide comparing environments for running applications in containers. The capabilities of Docker and other similar systems will be discussed. A bit of history on where it all began. The first well-known method of isolating an application is chroot. The system call of the same name changes the root directory, thus ensuring that the program that called it has access only to the files within that directory. But […]

Today is System Administrator Day. Our congratulations!

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Every year on the last Friday of July, the world celebrates System Administrator Appreciation Day — a professional holiday for all those responsible for the reliable and uninterrupted functioning of servers, corporate networks, workstations, multi-user computer systems, databases, and other network services. This tradition was initiated by American IT specialist Ted Kekatos, who believed it was unfair that there was no significant day in the calendar for […]

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