Hello, Habr! In the first part of the article, we discussed why it may be necessary to generate random numbers for participants who do not trust each other, the requirements for such random number generators, and examined two approaches to their implementation. In this part of the article, we will take a closer look at another approach that uses threshold signatures. A bit of cryptography To […]
Recursion is a very powerful and convenient mechanism when the same actions are performed 'deeper' on related data. However, uncontrolled recursion is evil that can lead either to an infinite execution of the process or (which happens more often) to the 'consumption' of all available memory. Databases operate on the same principles — 'you told me to dig, so I dig'. […]
Google has introduced the Android Partner Vulnerability initiative, which aims to disclose information about vulnerabilities in Android devices from various OEM manufacturers. This initiative will make it more transparent to users about vulnerabilities specific to firmware modified by third-party developers. Until now, official vulnerability reports (Android Security Bulletins) only reflected issues in the main code provided by [...]
Red Hat has released a new version of the graphical interface for managing virtual environments — Virt-Manager 3.0.0. The Virt-Manager shell is written in Python/PyGTK, is a wrapper around libvirt, and supports management of systems such as Xen, KVM, LXC, and QEMU. The project code is distributed under the GPLv2 license. The program provides tools for visualizing performance statistics and resource consumption of virtual machines, [...]
The release of the Stratis 2.2 project, developed by Red Hat and the Fedora community to unify and simplify the setup and management tools for a pool of one or more local storage devices, has been published. Stratis offers features such as dynamic storage space allocation, snapshots, integrity assurance, and layer creation for caching. The project code is written in Rust and is distributed under the [...]
Or every unfortunate company with a monolith is unhappy in its own way. The development of the Dodo IS system began as soon as the Dodo Pizza business started — in 2011. The foundation was the idea of complete and total digitization of business processes, done in-house, which even back in 2011 raised many questions and skepticism. But now, after 9 years, we continue on […]
The article translation has been prepared in anticipation of the launch of the course 'Administrator Linux. Professional'. Periodically, questions arise here and there about Gluster's recommendations on kernel settings and whether this is necessary. Such necessity arises rarely. Under most loads, the kernel performs very well. However, there is a downside. Historically, the Linux kernel tends to consume a lot of memory if it is provided […]
After ten years of inactivity, the Fedora Mobility group has resumed its work aimed at developing an official edition of the Fedora distribution for mobile devices. The currently developed version of Fedora Mobility is targeted for installation on the PinePhone smartphone, which is developed by the Pine64 community. Future editions of Fedora for other smartphones, such as the Librem 5 and OnePlus 5/5T, are expected after support for them is provided [...]
The Software Freedom Conservancy (SFC), a human rights organization, has unveiled a new strategy to ensure compliance with the GPL license in devices whose firmware is built on Linux. To implement this initiative, the ARDC (Amateur Radio Digital Communications) has already allocated a grant of $150,000 to the SFC organization. Planned efforts will focus on three areas: Enforcing manufacturers to comply with the GPL and [...]
Element Company acquires Gitter from GitLab to adapt the service for use within the federated Matrix network. This is the first major messenger that is planned to be transparently transitioned into a decentralized network along with all users and message history. Gitter is a free centralized tool for group communication among developers. Besides standard team chat functionality, it is essentially similar to proprietary […]
Five years ago, I tried working with Tarantool, but it didn't resonate with me at the time. However, I recently conducted a webinar where I talked about Hadoop and how MapReduce works. I was asked the question — 'Why not use Tarantool for this task?'. Out of curiosity, I decided to revisit it, test the latest version — and at this […]
The beta release of the Ubuntu 20.10 'Groovy Gorilla' distribution has been announced, marking the complete freeze of the package base and moving to final testing and bug fixing. The release is scheduled for October 22. Ready test images have been created for Ubuntu, Ubuntu Server, Lubuntu, Kubuntu, Ubuntu Mate, Ubuntu Budgie, Ubuntu Studio, Xubuntu, and Ubuntu Kylin (the edition for China). Key changes: Updated application versions. Desktop […]
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