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.

Cisco Training 200-125 CCNA v3.0. Day 17. Summary of what has been covered and the roadmap for the CCNA course.

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Today we will summarize our training and discuss what we will study in the remaining video lessons. Since we are using Cisco's educational materials, we will visit the company's website at www.cisco.com to see how much we have learned and how much remains to complete the course. Translator's note: Since the release of this video on November 28, 2015, the design of the Cisco website and content […]

Simplifying migration from OpenShift 3 to OpenShift 4

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So, the official launch of the Red Hat OpenShift 4 platform has taken place. Today, we will show you how to transition to it from OpenShift Container Platform 3 in the quickest and easiest way. In this article, we are primarily interested in the new OpenShift 4 clusters that utilize an immutable infrastructure based on RHEL CoreOS and […]

Chrome 82 will completely drop support for FTP

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One of the upcoming updates to the Chrome browser will completely drop support for the FTP protocol. This is stated in a special document from Google addressing this issue. However, the 'changes' will take effect only a year or even longer from now. Proper support for the FTP protocol in the Chrome browser has always been a sore point for developers at Google. One of the reasons for dropping FTP is cited as […]

Release of Apache 2.4.41 with vulnerability fixes

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The release of Apache HTTP Server 2.4.41 has been published (the release 2.4.40 was skipped), which introduces 23 changes and fixes 6 vulnerabilities: CVE-2019-10081 — an issue in mod_http2 that could lead to memory corruption when sending push requests at a very early stage. When using the 'H2PushResource' setting, it may be possible to overwrite memory in the request handling pool, but the problem is limited to a crash, as the data being written […]

Mesh VS WiFi: Which One to Choose for Wireless Connectivity?

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When I still lived in an apartment building, I faced the issue of slow speeds in rooms far from the router. Many people have their router in the hallway, where the provider has run fiber or UTP, and where a standard device is also placed. It’s fortunate when the owner replaces the router with their own, but standard devices from providers are like […]

Network monitoring and detection of abnormal network activity using Flowmon Networks solutions

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Recently, there has been a plethora of materials online discussing traffic analysis at the network perimeter. However, everyone seems to have forgotten about the analysis of local traffic, which is equally important. This article specifically addresses that topic. Using Flowmon Networks as an example, we will revisit the good old Netflow (and its alternatives) and consider some interesting cases, […]

Network filtering configuration management system Qrator

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TL;DR: A description of the client-server architecture of our internal network configuration management system, QControl. It is based on a two-tier transport protocol, working with gzip-packed messages without decompression between endpoints. Distributed routers and endpoints receive configuration updates, and the protocol allows the installation of localized intermediate relays. The system is built on the principle of differential backup (‘recent-stable’, explained below) and utilizes a query language […]

The Avast Secure Browser has undergone significant revisions.

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Developers at the Czech company Avast Software have announced the release of an updated web browser, Secure Browser, built on the open-source Chromium project with a focus on ensuring user security while browsing the internet. The new version of Avast Secure Browser, codenamed Zermatt, includes tools for optimizing memory and CPU usage, as well as a feature to ‘Extend operation time […]

Release of QEMU Emulator 4.1

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The release of QEMU 4.1 has been announced. As an emulator, QEMU allows running programs compiled for one hardware platform on a system with an entirely different architecture, for example, executing an ARM application on an x86-compatible PC. In virtualization mode, QEMU’s code execution performance in an isolated environment is close to native systems due to direct execution of instructions on the CPU and the utilization of […]

Oracle Linux 7.7 distribution is available.

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Oracle has released the industrial distribution of Oracle Linux 7.7, based on the package base of Red Hat Enterprise Linux 7.7. An installation ISO image, sized 4.7 GB and prepared for x86_64 and ARM64 (aarch64) architectures, is available for unlimited download after free registration. Additionally, Oracle Linux offers unlimited free access to the yum repository with binary package updates […]

Chrome plans to completely remove FTP support

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Google has announced its plan to end support for the FTP protocol in Chromium and Chrome. In Chrome 80, scheduled for early 2020, the gradual disabling of FTP support for users on the stable branch is expected (a flag, DisableFTP, will be added for corporate implementations to restore FTP). In Chrome 82, the code and resources used to facilitate the FTP client will be completely removed. The gradual reduction […]

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