5 Ways to Check Remote Port Connectivity in Linux
The post 5 Ways to Check Remote Port Connectivity in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .You’ve just deployed a service, opened a firewall rule, or configured a reverse proxy, and now you want to confirm
The post 5 Ways to Check Remote Port Connectivity in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.
👉@sysadminoff
https://www.tecmint.com/check-open-ports-linux-without-telnet/
The post 5 Ways to Check Remote Port Connectivity in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .You’ve just deployed a service, opened a firewall rule, or configured a reverse proxy, and now you want to confirm
The post 5 Ways to Check Remote Port Connectivity in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.
👉@sysadminoff
https://www.tecmint.com/check-open-ports-linux-without-telnet/
5 Ways to Check Remote Port Connectivity in Linux
5 Best Ways to Check if a Port Is Open on Linux
This article shows five ways to check open ports and test port connectivity on Linux using Bash, Netcat (nc), Nmap, Curl, and Python without relying on Telnet.
Доступен дистрибутив KaOS 2026.06, перешедший с systemd на систему инициализации Dinit
Опубликован выпуск KaOS 2026.06, дистрибутива с непрерывной моделью обновления, нацеленного на предоставление рабочего стола c приложениями на основе Qt. Из специфичных особенностей оформления можно отметить размещение вертикальной панели в правой стороне экрана. Дистрибутив развивается с оглядкой на Arch Linux, но поддерживает собственный независимый репозиторий, насчитывающий более 1500 пакетов, а также предлагает ряд собственных графических утилит. В качестве файловой системы по умолчанию применяется XFS. Для инициализации и управления сервисами применяется Dinit. Сборки публикуются для систем x86_64 (4.7 ГБ).
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65766
Опубликован выпуск KaOS 2026.06, дистрибутива с непрерывной моделью обновления, нацеленного на предоставление рабочего стола c приложениями на основе Qt. Из специфичных особенностей оформления можно отметить размещение вертикальной панели в правой стороне экрана. Дистрибутив развивается с оглядкой на Arch Linux, но поддерживает собственный независимый репозиторий, насчитывающий более 1500 пакетов, а также предлагает ряд собственных графических утилит. В качестве файловой системы по умолчанию применяется XFS. Для инициализации и управления сервисами применяется Dinit. Сборки публикуются для систем x86_64 (4.7 ГБ).
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65766
AMD issues hotfix for Radeon driver installation failures on Windows 10
AMD has released a hotfix to address significant installation failures affecting Radeon RX 7000 series graphics cards on Windows 10 systems. The issue originated with the release of Adrenalin Edition 26.6.2, which introduced support for FSR 4.1 upscaling technology to older RDNA 3 hardware. Affected users reported that the driver would either fail to launch or trigger a yellow exclamation mark warning within the Windows Device Manager.
Source
👉@sysadminoff
https://4sysops.com/archives/amd-issues-hotfix-for-radeon-driver-installation-failures-on-windows-10/
AMD has released a hotfix to address significant installation failures affecting Radeon RX 7000 series graphics cards on Windows 10 systems. The issue originated with the release of Adrenalin Edition 26.6.2, which introduced support for FSR 4.1 upscaling technology to older RDNA 3 hardware. Affected users reported that the driver would either fail to launch or trigger a yellow exclamation mark warning within the Windows Device Manager.
Source
👉@sysadminoff
https://4sysops.com/archives/amd-issues-hotfix-for-radeon-driver-installation-failures-on-windows-10/
Overcoming the closest-match trap when teaching AI agents proprietary code
AI models often hallucinate when encountering proprietary SDKs or internal frameworks because they lack relevant training data. Instead of admitting ignorance, models default to the "closest match" from public data, such as mapping a custom authentication library to OAuth patterns. This behavior creates plausible but incorrect code that can be difficult for developers to spot during large-scale generations.
Source
👉@sysadminoff
https://4sysops.com/archives/overcoming-the-closest-match-trap-when-teaching-ai-agents-proprietary-code/
AI models often hallucinate when encountering proprietary SDKs or internal frameworks because they lack relevant training data. Instead of admitting ignorance, models default to the "closest match" from public data, such as mapping a custom authentication library to OAuth patterns. This behavior creates plausible but incorrect code that can be difficult for developers to spot during large-scale generations.
Source
👉@sysadminoff
https://4sysops.com/archives/overcoming-the-closest-match-trap-when-teaching-ai-agents-proprietary-code/
Первый выпуск QSOE, операционной системы в стиле QNX с двумя заменяемыми микроядрами
Представлен первый релиз операционной системы QSOE, спроектированной в стиле QNX и поставляемой с двумя заменяемыми микроядрами "Skimmer" и "seL4". На уровне ядра выполняются только система распределения ресурсов, механизм синхронного обмена сообщениями (QNX IPC) и минималистичное ядро, а все остальные компоненты, реализованы в пользовательском пространстве. Поддерживается работа на 64-разрядных CPU с архитектурой RISC-V. ОС протестирована на плате SiFive HiFive Unmatched и в QEMU. Код проекта написан на языке Си и распространяется под лицензией Apache 2.0.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65768
Представлен первый релиз операционной системы QSOE, спроектированной в стиле QNX и поставляемой с двумя заменяемыми микроядрами "Skimmer" и "seL4". На уровне ядра выполняются только система распределения ресурсов, механизм синхронного обмена сообщениями (QNX IPC) и минималистичное ядро, а все остальные компоненты, реализованы в пользовательском пространстве. Поддерживается работа на 64-разрядных CPU с архитектурой RISC-V. ОС протестирована на плате SiFive HiFive Unmatched и в QEMU. Код проекта написан на языке Си и распространяется под лицензией Apache 2.0.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65768
📰 Proton Experimental updated for ARC Raiders, DIRT 5, Kingdom Come: Deliverance II
On top of landing AMD FSR 4 support, an update was pushed out after for Proton Experimental to fix up a fix other issues running games on Linux / SteamOS.Read the full article on GamingOnLinux.
🔗 Source:
#amd #linux #proton
👉@sysadminoff
https://www.gamingonlinux.com/2026/06/proton-experimental-updated-for-arc-raiders-dirt-5-kingdom-come-deliverance-ii/
On top of landing AMD FSR 4 support, an update was pushed out after for Proton Experimental to fix up a fix other issues running games on Linux / SteamOS.Read the full article on GamingOnLinux.
🔗 Source:
#amd #linux #proton
👉@sysadminoff
https://www.gamingonlinux.com/2026/06/proton-experimental-updated-for-arc-raiders-dirt-5-kingdom-come-deliverance-ii/
GamingOnLinux
Proton Experimental updated for ARC Raiders, DIRT 5, Kingdom Come: Deliverance II
On top of landing AMD FSR 4 support, an update was pushed out after for Proton Experimental to fix up a fix other issues running games on Linux / SteamOS.
📰 KSMBD Adds SMB2 Compression Support In Linux 7.2
Merged back in Linux 5.15 in 2021 was KSMBD as an in-kernel SMB3 file server. There hasn't been much KSMBD news to report on recently but for Linux 7.2 there is now SMB2 compression support...
🔗 Source:
#kernel #linux
👉@sysadminoff
https://www.phoronix.com/news/Linux-7.2-KSMBD
Merged back in Linux 5.15 in 2021 was KSMBD as an in-kernel SMB3 file server. There hasn't been much KSMBD news to report on recently but for Linux 7.2 there is now SMB2 compression support...
🔗 Source:
#kernel #linux
👉@sysadminoff
https://www.phoronix.com/news/Linux-7.2-KSMBD
Phoronix
KSMBD Adds SMB2 Compression Support In Linux 7.2
Merged back in Linux 5.15 in 2021 was KSMBD as an in-kernel SMB3 file server
📰 AMD Contributes ONNX Runtime Backend To FFmpeg DNN Filter
An AMD engineer has contributed to the upstream FFmpeg library an ONNX Runtime back-end for its DNN filter. The FFmpeg Deep Neural Network (DNN) filters allow for running AI models natively inside the video processing pipeline for upscaling, object detection, background segmentation, and more. This ONNX Runntime back-end support is notable in that it expands the GPU and NPU capabilities with FFmpeg...
🔗 Source:
#amd #ffmpeg
👉@sysadminoff
https://www.phoronix.com/news/FFmpeg-DNN-ONNX-Runtime
An AMD engineer has contributed to the upstream FFmpeg library an ONNX Runtime back-end for its DNN filter. The FFmpeg Deep Neural Network (DNN) filters allow for running AI models natively inside the video processing pipeline for upscaling, object detection, background segmentation, and more. This ONNX Runntime back-end support is notable in that it expands the GPU and NPU capabilities with FFmpeg...
🔗 Source:
#amd #ffmpeg
👉@sysadminoff
https://www.phoronix.com/news/FFmpeg-DNN-ONNX-Runtime
Phoronix
AMD Contributes ONNX Runtime Backend To FFmpeg DNN Filter
An AMD engineer has contributed to the upstream FFmpeg library an ONNX Runtime back-end for its DNN filter
OpenAI expands Daybreak initiative with GPT-5.5-Cyber to automate patch management
OpenAI has significantly expanded its Daybreak cybersecurity initiative to transition from merely discovering software vulnerabilities to automating the entire remediation process. The program now integrates the full release of GPT-5.5-Cyber, an updated Codex Security plugin, and the Patch the Planet initiative for open-source software. This shift addresses a growing industry bottleneck where the speed of AI-driven flaw discovery has historically overwhelmed the manual capacity of developers to create and deploy fixes.
Source
👉@sysadminoff
https://4sysops.com/archives/openai-expands-daybreak-initiative-with-gpt-5-5-cyber-to-automate-patch-management/
OpenAI has significantly expanded its Daybreak cybersecurity initiative to transition from merely discovering software vulnerabilities to automating the entire remediation process. The program now integrates the full release of GPT-5.5-Cyber, an updated Codex Security plugin, and the Patch the Planet initiative for open-source software. This shift addresses a growing industry bottleneck where the speed of AI-driven flaw discovery has historically overwhelmed the manual capacity of developers to create and deploy fixes.
Source
👉@sysadminoff
https://4sysops.com/archives/openai-expands-daybreak-initiative-with-gpt-5-5-cyber-to-automate-patch-management/
📰 A 30-Year-Old GIMP Build Used to Create Tux Is Now a Linux Flatpak
GIMP 0.54.1, the 1996 build used to create the original Tux mascot, has been revived as a Flatpak for modern Linux systems.
🔗 Source:
#flatpak #linux
👉@sysadminoff
https://linuxiac.com/a-30-year-old-gimp-build-used-to-create-tux-is-now-a-linux-flatpak/
GIMP 0.54.1, the 1996 build used to create the original Tux mascot, has been revived as a Flatpak for modern Linux systems.
🔗 Source:
#flatpak #linux
👉@sysadminoff
https://linuxiac.com/a-30-year-old-gimp-build-used-to-create-tux-is-now-a-linux-flatpak/
Linuxiac
A 30-Year-Old GIMP Build Used to Create Tux Is Now a Linux Flatpak
GIMP 0.54.1, the 1996 build used to create the original Tux mascot, has been revived as a Flatpak for modern Linux systems.
Anthropic accuses Alibaba of massive AI distillation attack
Anthropic has formally accused Alibaba of conducting an industrial-scale campaign to illicitly extract capabilities from the Claude AI model. The San Francisco-based firm claims that operators linked to the Chinese tech giant utilized thousands of fraudulent accounts to perform nearly 29 million exchanges. This activity is described as the largest known instance of a distillation attack targeting Anthropic's proprietary technology.
Source
👉@sysadminoff
https://4sysops.com/archives/anthropic-accuses-alibaba-of-massive-ai-distillation-attack/
Anthropic has formally accused Alibaba of conducting an industrial-scale campaign to illicitly extract capabilities from the Claude AI model. The San Francisco-based firm claims that operators linked to the Chinese tech giant utilized thousands of fraudulent accounts to perform nearly 29 million exchanges. This activity is described as the largest known instance of a distillation attack targeting Anthropic's proprietary technology.
Source
👉@sysadminoff
https://4sysops.com/archives/anthropic-accuses-alibaba-of-massive-ai-distillation-attack/
Проект rars подготовил свободную реализацию RAR с поддержкой создания архивов
Представлен проект rars, развивающий свободную реализацию инструментария для формата RAR, написанную на языке Rust и поддерживающую не только распаковку, но и создание RAR-архивов. Инструментарий поддерживает как ранние форматы RAR 1.3/1.4 с сигнатурой "RE~^", так и последнюю версию RAR 7. Доступны такие расширенные операции, как разбиение на тома, защита паролем, шифрование заголовков, прикрепление комментариев, RARVM-фильтры, индексы для быстрого открытия и механизмы восстановления повреждённых данных. Код распространяется под лицензиями MIT и Apache-2.0. На базе библиотеки PyO3 подготовлены обвязки для языка Python, которые реализуют API в стиле rarfile для просмотра, тестирования и извлечения архивов, а также API в стиле RarBuilder для создания или перепаковки архивов.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65765
Представлен проект rars, развивающий свободную реализацию инструментария для формата RAR, написанную на языке Rust и поддерживающую не только распаковку, но и создание RAR-архивов. Инструментарий поддерживает как ранние форматы RAR 1.3/1.4 с сигнатурой "RE~^", так и последнюю версию RAR 7. Доступны такие расширенные операции, как разбиение на тома, защита паролем, шифрование заголовков, прикрепление комментариев, RARVM-фильтры, индексы для быстрого открытия и механизмы восстановления повреждённых данных. Код распространяется под лицензиями MIT и Apache-2.0. На базе библиотеки PyO3 подготовлены обвязки для языка Python, которые реализуют API в стиле rarfile для просмотра, тестирования и извлечения архивов, а также API в стиле RarBuilder для создания или перепаковки архивов.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65765
📰 I turned an old Android phone into a home server, and it outperformed my Raspberry Pi
I have used Raspberry Pi boards for years. They remain one of the easiest ways to get started with self-hosting, home automation, and small server projects. My experience with Raspberry Pi boards has generally been positive, but they come with a few limitations. Performance can become a bottleneck once you start running multiple services. Storage performance also depends heavily on the medium you use. MicroSD cards remain among the weakest...
🔗 Source:
#android #raspberry
👉@sysadminoff
https://www.xda-developers.com/old-android-phone-home-server-beat-raspberry-pi/
I have used Raspberry Pi boards for years. They remain one of the easiest ways to get started with self-hosting, home automation, and small server projects. My experience with Raspberry Pi boards has generally been positive, but they come with a few limitations. Performance can become a bottleneck once you start running multiple services. Storage performance also depends heavily on the medium you use. MicroSD cards remain among the weakest...
🔗 Source:
#android #raspberry
👉@sysadminoff
https://www.xda-developers.com/old-android-phone-home-server-beat-raspberry-pi/
XDA
I turned an old Android phone into a home server, and it outperformed my Raspberry Pi
I'd pick a phone over Raspberry Pi any day.
📰 Linux Cache Aware Scheduling Extended For Even Better Performance: Up To 360% In MySQL
Cache Aware Scheduling is one of the most exciting kernel innovations to land in Linux this year. While it was finally merged last week to Linux 7.2, a new patch series today is already working to extend Cache Aware Scheduling and is showing some exciting performance improvements...
🔗 Source:
#kernel #linux
👉@sysadminoff
https://www.phoronix.com/news/Extended-Cache-Aware-Sched
Cache Aware Scheduling is one of the most exciting kernel innovations to land in Linux this year. While it was finally merged last week to Linux 7.2, a new patch series today is already working to extend Cache Aware Scheduling and is showing some exciting performance improvements...
🔗 Source:
#kernel #linux
👉@sysadminoff
https://www.phoronix.com/news/Extended-Cache-Aware-Sched
Phoronix
Linux Cache Aware Scheduling Extended For Even Better Performance: Up To 360% In MySQL
Cache Aware Scheduling is one of the most exciting kernel innovations to land in Linux this year
Salesforce launches Help Agent and Agentforce Commerce for autonomous customer service
Salesforce has introduced Help Agent, a prepackaged solution built on the Agentforce platform designed for rapid deployment of autonomous customer service. This tool allows organizations to connect AI agents to company knowledge bases and communication channels like web, text, and voice within minutes. Unlike traditional chatbots, these agents utilize the Atlas Reasoning Engine to plan and execute multi-step workflows independently.
Source
👉@sysadminoff
https://4sysops.com/archives/salesforce-launches-help-agent-and-agentforce-commerce-for-autonomous-customer-service/
Salesforce has introduced Help Agent, a prepackaged solution built on the Agentforce platform designed for rapid deployment of autonomous customer service. This tool allows organizations to connect AI agents to company knowledge bases and communication channels like web, text, and voice within minutes. Unlike traditional chatbots, these agents utilize the Atlas Reasoning Engine to plan and execute multi-step workflows independently.
Source
👉@sysadminoff
https://4sysops.com/archives/salesforce-launches-help-agent-and-agentforce-commerce-for-autonomous-customer-service/
📰 Getting More Out of KDE Plasma System Monitor
The k in KDE stands for "Kustomization" so let's "kustomize" the default system monitor.
🔗 Source:
#kde #plasma
👉@sysadminoff
https://feed.itsfoss.com/link/24361/17367829/kde-system-monitor-tweaks
The k in KDE stands for "Kustomization" so let's "kustomize" the default system monitor.
🔗 Source:
#kde #plasma
👉@sysadminoff
https://feed.itsfoss.com/link/24361/17367829/kde-system-monitor-tweaks
It's FOSS
Getting More Out of KDE Plasma System Monitor
The k in KDE stands for "Kustomization" so let's "kustomize" the default system monitor.
Managing Microsoft Defender Antivirus through PowerShell cmdlets
Microsoft Defender Antivirus provides a robust set of PowerShell cmdlets for managing security features on Windows 10, Windows 11, and Windows Server 2016 or later. These commands allow for the configuration of next-generation protection features, including exploit protection and real-time monitoring. Administrators can use these tools to automate security tasks and ensure consistent protection across a fleet of devices.
Source
👉@sysadminoff
https://4sysops.com/archives/managing-microsoft-defender-antivirus-through-powershell-cmdlets/
Microsoft Defender Antivirus provides a robust set of PowerShell cmdlets for managing security features on Windows 10, Windows 11, and Windows Server 2016 or later. These commands allow for the configuration of next-generation protection features, including exploit protection and real-time monitoring. Administrators can use these tools to automate security tasks and ensure consistent protection across a fleet of devices.
Source
👉@sysadminoff
https://4sysops.com/archives/managing-microsoft-defender-antivirus-through-powershell-cmdlets/
Платформа Deno 2.9 c поддержкой Deno Desktop для создания десктоп-приложений
Опубликован выпуск платформы Deno 2.9, предназначенной для обособленного выполнения серверных и настольных приложений на языках JavaScript и TypeScript с использованием движка V8, применяемого в браузерах на основе Chromium. Проект развивает Райан Даль (Ryan Dahl), создатель Node.js, с целью предоставления более защищённого окружения и устранения концептуальных ошибок, допущенных в архитектуре Node.js. Для повышения безопасности обвязка вокруг движка V8 написана на языке Rust, а для обработки запросов в неблокирующем режиме применяется платформа Tokio. Код проекта распространяется под лицензией MIT. Сборки подготовлены для Linux, Windows и macOS.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65770
Опубликован выпуск платформы Deno 2.9, предназначенной для обособленного выполнения серверных и настольных приложений на языках JavaScript и TypeScript с использованием движка V8, применяемого в браузерах на основе Chromium. Проект развивает Райан Даль (Ryan Dahl), создатель Node.js, с целью предоставления более защищённого окружения и устранения концептуальных ошибок, допущенных в архитектуре Node.js. Для повышения безопасности обвязка вокруг движка V8 написана на языке Rust, а для обработки запросов в неблокирующем режиме применяется платформа Tokio. Код проекта распространяется под лицензией MIT. Сборки подготовлены для Linux, Windows и macOS.
👉@sysadminoff
https://www.opennet.ru/opennews/art.shtml?num=65770
Windows 11 25H2 forced installation
Microsoft is automatically rolling out Windows 11 25H2 to all eligible unmanaged Home and Pro PCs, with no user approval required. The primary driver is the end of support for Windows 11 24H2 on October 13, 2026, after which those editions will no longer receive security updates. The rollout also prepares consumer devices for Windows 11 26H2, expected in fall 2026 on the same underlying platform. For devices already on 24H2, the upgrade is delivered as a small enablement package rather than a full OS reinstall. Managed enterprise devices are excluded from this automatic rollout.
Source
👉@sysadminoff
https://4sysops.com/archives/windows-11-25h2-forced-installation/
Microsoft is automatically rolling out Windows 11 25H2 to all eligible unmanaged Home and Pro PCs, with no user approval required. The primary driver is the end of support for Windows 11 24H2 on October 13, 2026, after which those editions will no longer receive security updates. The rollout also prepares consumer devices for Windows 11 26H2, expected in fall 2026 on the same underlying platform. For devices already on 24H2, the upgrade is delivered as a small enablement package rather than a full OS reinstall. Managed enterprise devices are excluded from this automatic rollout.
Source
👉@sysadminoff
https://4sysops.com/archives/windows-11-25h2-forced-installation/
📰 Network-wide ad blocking with a Raspberry Pi Zero is easier than you think, but the Wi-Fi problem is real
A Raspberry Pi Zero makes network-wide ad blocking easy, but its lack of Ethernet can turn a simple Pi-hole setup into a compromise.
🔗 Source:
#raspberry
👉@sysadminoff
https://www.xda-developers.com/network-wide-ad-blocking-raspberry-pi-zero-wifi-problem/
A Raspberry Pi Zero makes network-wide ad blocking easy, but its lack of Ethernet can turn a simple Pi-hole setup into a compromise.
🔗 Source:
#raspberry
👉@sysadminoff
https://www.xda-developers.com/network-wide-ad-blocking-raspberry-pi-zero-wifi-problem/
XDA
Network-wide ad blocking with a Raspberry Pi Zero is easier than you think, but the Wi-Fi problem is real
A Raspberry Pi Zero makes network-wide ad blocking easy, but its lack of Ethernet can turn a simple Pi-hole setup into a compromise.