ProHoster > Articles on: Yuri Gagarin

Author: Yuri Gagarin

A technical specialist at ProHoster with over six years of experience in server administration, VPN solutions, and network security. I manage infrastructure setup and support, monitor service stability, and implement solutions to protect client data. I also contribute to performance optimization and compliance with modern security and privacy requirements.

Tor Browser 9.5 is available

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After six months of development, a significant release of the specialized browser Tor Browser 9.5 has been formed, continuing the functionality enhancements based on the ESR branch of Firefox 68. The browser focuses on ensuring anonymity, security, and privacy, with all traffic routed exclusively through the Tor network. Direct access via the standard network connection of the current system is impossible, making it untraceable to identify the user's real IP address (in the case of […

Release of Devuan 3 Beowulf

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On June 1, Devuan 3 Beowulf was released, which corresponds to Debian 10 Buster. Devuan is a fork of Debian GNU/Linux without systemd, which "gives users control over the system by avoiding excessive complexity and ensuring the freedom to choose the initialization system." Key features: Based on Debian Buster (10.4) and Linux kernel 4.19. Added support for ppc64el (also supports i386, amd64, armel, armhf, arm64) […

Firefox 77

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Firefox 77 is now available. A new certificate management page — about:certificate. The address bar can now distinguish entered domains from search queries containing a dot. For example, entering "foo.bar" will no longer attempt to open the site foo.bar; instead, it will perform a search. Improvements for users with disabilities: The list of handler applications in the browser settings has become accessible for screen readers. Issues have been fixed with […

🥇HackTheBox endgame. Completion of the Professional Offensive Operations lab. Pentest Active Directory | ProHoster

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It has been barely 10 years since the RoS developers (in stable 6.47) added functionality that allows DNS requests to be redirected according to specific rules. Previously, one had to convolute with Layer-7 rules in the firewall, but now it's done simply and elegantly: /ip dns static add forward-to=192.168.88.3 regexp=».*\.test1\.localdomain» type=FWD add forward-to=192.168.88.56 regexp=».*\.test2\.localdomain» type=FWD My happiness knows no bounds! […]

HackTheBox endgame. Completing the Professional Offensive Operations lab. Pentesting Active Directory

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In this article, we will explore the progression not just of a machine, but of an entire mini-laboratory from the HackTheBox platform. As stated in the description, P.O.O. is designed to test skills at all stages of attacks within a small Active Directory environment. The goal is to compromise the available host, escalate privileges, and ultimately compromise the entire domain while collecting 5 flags. Connection […]

Mikrotik split-dns: they did it

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Today we share a selection of administration courses from the Education section on Habr Career. There are, to be honest, not many free options in this field, but we have managed to find 14 of them. These courses and video tutorials will help you acquire or enhance skills in cybersecurity and system administration. And if you’ve seen something interesting that’s not included in this issue – share the links […]

Linux Mint will block hidden installation of snapd from the user.

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The developers of the Linux Mint distribution have stated that snap packages and snapd will not be included in the upcoming Linux Mint 20 release. Furthermore, automatic installation of snapd alongside other packages installed via APT will be prohibited. Users can manually install snapd if desired, but its addition alongside other packages without the user's knowledge will be forbidden. The essence of the problem is that […

Release of Devuan 3 distribution, a Debian fork without systemd

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The release of Devuan 3.0 "Beowulf," a fork of Debian GNU/Linux provided without the system manager systemd, has been introduced. This new branch is marked by its transition to the Debian 10 "Buster" package base. Live builds and installation ISO images have been prepared for the AMD64, i386, and ARM (armel, armhf, and arm64) architectures. Devuan-specific packages can be downloaded from the repository packages.devuan.org. Branches have been created within the project […

Wine Launcher — a new tool for launching games through Wine

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The Wine Launcher project develops a container for Windows games based on Wine. Notable features include a modern launcher style, isolation, and independence from the system, as well as providing each game with separate Wine and Prefix, which ensures that the game will not break when Wine is updated in the system and will always work. Capabilities: Separate Wine and Prefix for each […]

The most effective online lesson services for students and teachers: top five

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Remote learning is becoming increasingly popular for all the reasons we understand. While many Habr readers are familiar with various courses in digital specialties – software development, design, product management, etc. – the situation with lessons for the younger generation is somewhat different. There are many services for online lessons, but which one to choose? In February, I evaluated different platforms, and […]

DEVOXX UK. Kubernetes in Production: Blue/Green Deployment, Auto-Scaling, and Deployment Automation. Part 2

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Kubernetes is an excellent tool for running Docker containers in a clustered production environment. However, there are tasks that Kubernetes cannot address. With frequent deployment in a working environment, we need fully automated Blue/Green deployment to avoid downtime in this process, which also requires handling external HTTP requests and performing SSL offloading. This necessitates integration […]

Returning a value from PowerShell invoke-command to the SQL Server agent

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When creating my own backup management methodology across multiple MS-SQL servers, I spent a lot of time learning the mechanism for passing values in PowerShell during remote calls, so I'm writing this reminder for myself in case it might be useful to someone else. So, let's start with a simple script and run it locally: $exitcode = $args[0] Write-Host 'Out to host.' Write-Output 'Out to […]

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