#línux — Public Fediverse posts

Linux kernel 7.2 is out with cache-aware scheduling, Btrfs large folios, Rust on s390, and broad networking and virtualization improvements.
https://linuxiac.com/linux-kernel-7-2-released-with-btrfs-scheduler-and-networking-improvements/

#linux #kernel #opensource

Linux kernel 7.2 is out with cache-aware scheduling, Btrfs large folios, Rust on s390, and broad networking and virtualization improvements.
https://linuxiac.com/linux-kernel-7-2-released-with-btrfs-scheduler-and-networking-improvements/

#linux #kernel #opensource

Catch up on the latest Linux news: Manjaro 26.1, Omarchy 4.0, GNOME 51 Beta, OpenSSH 10.5, Podman 6.1, KDE Plasma 6.6 gets three years of LTS support, and more.
https://linuxiac.com/linuxiac-weekly-wrap-up-week-33-2026-august-10-16/

#linux #opensource

Catch up on the latest Linux news: Manjaro 26.1, Omarchy 4.0, GNOME 51 Beta, OpenSSH 10.5, Podman 6.1, KDE Plasma 6.6 gets three years of LTS support, and more.
https://linuxiac.com/linuxiac-weekly-wrap-up-week-33-2026-august-10-16/

#linux #opensource

So now Home Assistant requires you to open its web UI via http in order to... change the web UI http settings. What the fuck could go wrong right? This has to be the dumbest change I've ever seen done in a software.

If the default settings don't work for you how are you supposed to do the first configuration of your instance?

https://community.home-assistant.io/t/http-yaml-deprecation-how-to-access-new-install-behind-proxy/1021476/7

#HomeAssistant #SelfHosting #Linux

So now Home Assistant requires you to open its web UI via http in order to... change the web UI http settings. What the fuck could go wrong right? This has to be the dumbest change I've ever seen done in a software.

If the default settings don't work for you how are you supposed to do the first configuration of your instance?

https://community.home-assistant.io/t/http-yaml-deprecation-how-to-access-new-install-behind-proxy/1021476/7

#HomeAssistant #SelfHosting #Linux

@davidculley @masterwolf Imo, it depends on whether you are sold on its premise or "just trying out something else". If you come for the flexibility that #portage gives you, ditch arch immediately. If you're "just" curious, better keep a lifeline.

#gentoo #linux

@davidculley @masterwolf Imo, it depends on whether you are sold on its premise or "just trying out something else". If you come for the flexibility that #portage gives you, ditch arch immediately. If you're "just" curious, better keep a lifeline.

#gentoo #linux

I begin to ask myself is it time for me to distro hop because Debian Sid has kernel compilation issues and NVIDIA drivers are lagging behind multiple series (not versions!)

Where would I go though? I used Debian on my home PC for over a decade. Mint? Arch? Some new fancy invention, probably based on Arch? Doesn't feel right.

#linux #linuxgaming #debian #arch #linuxmint

I begin to ask myself is it time for me to distro hop because Debian Sid has kernel compilation issues and NVIDIA drivers are lagging behind multiple series (not versions!)

Where would I go though? I used Debian on my home PC for over a decade. Mint? Arch? Some new fancy invention, probably based on Arch? Doesn't feel right.

#linux #linuxgaming #debian #arch #linuxmint

Linux macht eine CPU-Funktion zur Pflicht: Der #Support für Uralt-Prozessoren ohne #TSC wird gestrichen. Der #Kernel wird entsprechend aufgeräumt und eine 30-jährige Ära beendet. #OpenSource #Linux https://winfuture.de/news,160659.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia

Linux macht eine CPU-Funktion zur Pflicht: Der #Support für Uralt-Prozessoren ohne #TSC wird gestrichen. Der #Kernel wird entsprechend aufgeräumt und eine 30-jährige Ära beendet. #OpenSource #Linux https://winfuture.de/news,160659.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia

MuQSS CPU scheduler for Linux 7.2 by Con Kolivas https://lobste.rs/s/o5vcbw #linux
https://lore.kernel.org/lkml/CABqErrH=[email protected]/

MuQSS CPU scheduler for Linux 7.2 by Con Kolivas https://lobste.rs/s/o5vcbw #linux
https://lore.kernel.org/lkml/CABqErrH=[email protected]/

Deleting files on Linux can be simple—or dangerously powerful; here are the commands worth knowing before you hit Enter 😎👇

Find high-res pdf ebooks with all my Linux related infographics at https://study-notes.org

#linux #devops #software #upskill #technology

Um leitor de impressões digitais

Há qualquer coisa de particularmente interessante em encontrar um periférico antigo e, em vez de simplesmente tentar fazê-lo funcionar, perguntar: o que será que este objeto ainda consegue fazer?

Achei no lixo, esses dias, um pequeno leitor de impressões digitais da Microsoft. Nem sei dizer que grande utilidade prática esse objeto ainda tem hoje.

Através de buscas na internet descobri que um sensor desses utiliza os princípios da luz e da refração interna para capturar o desenho das cristas e valas do dedo. Quando o dedo toca a superfície de vidro, as áreas de contato direto (cristas) alteram o caminho da luz por reflexão frustrada, enquanto os espaços vazios (valas) refletem a luz de maneira diferente, permitindo que um sensor crie uma imagem em alto contraste. Além disso um sensor de proximidade permite ao dispositivo saber quando realizar a captura da imagem.

Liguei-o ao meu HP xw4600, que tem sido uma espécie de bancada de experiências para estas coisas, e fui ver o que o Linux tinha a dizer sobre ele. A primeira resposta veio do lsusb:

 Bus 005 Device 002: ID 045e:00bd Microsoft Corp. Fingerprint Reader 

O dispositivo estava vivo. O passo seguinte foi olhar com um pouco mais de atenção para o dispositivo:

 lsusb -v -d 045e:00bd 

O resultado mostrou um dispositivo USB 2.0 a funcionar a Full Speed, 12 Mbps. Não havia ali uma interface genérica de scanner ou de câmara que pudesse ser simplesmente aberta por um programa qualquer. A interface era:

 bInterfaceClass       255 Vendor Specific Class  bInterfaceSubClass    255 Vendor Specific Subclass  bInterfaceProtocol    255 Vendor Specific Protocol 

Ou seja, o leitor não se apresentava ao computador como uma simples fonte de imagens. Havia alguma coisa entre o sensor e o sistema operativo que teria de saber falar a língua daquele aparelho.

Tenho instalado no MX Linux o libfprint, uma biblioteca open source para leitores de impressões digitais. Ao experimentar:

 fprintd-list "$USER" 

o sistema respondeu:

 found 1 devices  Device at /net/reactivated/Fprint/Device/0  Using device /net/reactivated/Fprint/Device/0  User guilherme has no fingers enrolled for Digital Persona U.are.U 4000/4000B/4500. 

O leitor Microsoft é um Digital Persona U.are.U 4000/4000B/4500.

A utilização habitual do libfprint é bastante clara: cadastrar uma impressão digital e depois utilizá-la para autenticação. Experimentei:

 fprintd-enroll "$USER" 

O sistema pediu um dedo. Coloquei-o sobre o leitor. E apareceu:

 Enrolling right-index-finger finger.  Enroll result: enroll-stage-passed 

Funcionava. Mas, naquele momento, a minha curiosidade já era outra. Se o leitor consegue capturar uma impressão digital, será que consigo simplesmente obter a imagem? Queria chegar um pouco mais perto daquilo que o aparelho efetivamente produz.

O fprintd é uma interface relativamente confortável para utilizar leitores de impressões digitais. Para este experimento, porém, era interessante descer um nível e conversar diretamente com o libfprint. Instalei os headers de desenvolvimento e comecei a consultar a API disponível no sistema. Os próprios headers instalados no sistema mostraram o caminho. O arquivo fp-image.h tinha a possibilidade de acessar diretamente um FpImage. A função que me interessava acabou sendo:

 fp_device_capture_sync() 

Ela permite pedir ao dispositivo uma captura e receber de volta um FpImage. Escrevi um pequeno programa em C que abre o dispositivo, espera pelo dedo, captura uma imagem e grava os dados como um arquivo PGM. O PGM é um formato extremamente simples para imagens em tons de cinza, já falamos dele aqui no blog.

O programa começou por ser executado normalmente:

 ./capture_fingerprint 

Mas o Linux respondeu:

 libusb: error [get_usbfs_fd] libusb couldn't open USB device  libusb: error [get_usbfs_fd] libusb requires write access to USB device nodes  Could not open device: USB error on device 045e:00bd : Access denied 

Mais uma camada do objeto aparecia. O fprintd conseguia utilizar o leitor, mas o meu pequeno programa não tinha permissão para abrir diretamente o dispositivo USB. Para confirmar que esse era o único problema, executei:

 sudo ./capture_fingerprint 

E então aconteceu.

 Opening fingerprint reader...  Place your finger on the reader...  Capture successful!  Image size: 384 x 290  Image data: 111360 bytes  Saved: finger_001.pgm 

O arquivo finger_001.pgm tinha acabado de transformar aquilo que, alguns minutos antes, era apenas um dispositivo USB identificado como 045e:00bd numa coisa muito mais concreta: um conjunto de pixels que podia ser guardado, aberto e analisado.

Abri o arquivo no GIMP.

Depois de confirmar que a captura funcionava, fiz uma pequena alteração no programa. Em vez de sempre gravar:

 finger_001.pgm 

queria que cada captura tivesse a data e a hora. Passei a usar nomes como:

 finger_2026-08-12_11-00-43.pgm 

Assim evita que uma nova captura simplesmente destrua a anterior. E também não queria terminar com um programa que precisasse ser executado como root. A solução foi criar uma regra udev:

 SUBSYSTEM=="usb", ATTR{idVendor}=="045e", ATTR{idProduct}=="00bd", MODE="0660", GROUP="plugdev" 

O meu utilizador já fazia parte do grupo plugdev. Depois de recarregar as regras e voltar a ligar o leitor, o dispositivo passou a aparecer com permissões:

 crw-rw---- 1 root plugdev ... 

E finalmente:

 ./capture_fingerprint 

Ainda preciso ver o que cria aquele retângulo escuro no centro da imagem, talvez o leitor já tenha passado dias melhores… O que o programa faz simplesmente é receber um FpImage fornecido pelo libfprint. O driver pode fazer algum processamento, normalização ou outra transformação antes de entregar essa imagem à aplicação, isso eu já não sei.

Bom, não se trata apenas de fazer um aparelho antigo funcionar. Trata-se de descobrir as camadas que normalmente não vemos: identificação USB, driver, biblioteca, API, permissões, imagem, formato de arquivo. Cada camada que se torna compreensível reduz um pouco a opacidade do objeto.

Uma das coisas que mais gosto nestas experiências com tecnologia descartada: muitas vezes não sabemos exatamente onde vamos chegar quando pegamos num objeto.

O programinha e a regra udev estão disponíveis aqui: https://github.com/refotografia/Microsoft-Fingerprint-Reader-Thing

New article: Kernel Modules 🐧

I open a .ko with readelf to understand it:
→ a prebuilt struct module
→ .modinfo: license, vermagic, depends
→ holes where kernel functions addresses go

Loading is linking. Then one call into init.

https://internals-for-interns.com/posts/linux-kernel-module-system/

#Linux #Kernel #Drivers

New article: Kernel Modules 🐧

I open a .ko with readelf to understand it:
→ a prebuilt struct module
→ .modinfo: license, vermagic, depends
→ holes where kernel functions addresses go

Loading is linking. Then one call into init.

https://internals-for-interns.com/posts/linux-kernel-module-system/

#Linux #Kernel #Drivers

Mozilla #Firefox 154 Is Now Available for Download, Here’s What’s New https://9to5linux.com/mozilla-firefox-154-is-now-available-for-download-heres-whats-new

#OpenSource #FreeSoftware #Linux

Mozilla #Firefox 154 Is Now Available for Download, Here’s What’s New https://9to5linux.com/mozilla-firefox-154-is-now-available-for-download-heres-whats-new

#OpenSource #FreeSoftware #Linux

Probando openSUSE Tumbleweed

Después de muchos años volví a instalar openSUSE. Elegí el sabor Tumbleweed: Distribución de actualización contínua, y funciona muy bien en mi laptop de casi 10 años.

https://picandocodigo.net/2026/probando-opensuse-tumbleweed/

#Linux #OpenSUSE

Probando openSUSE Tumbleweed

Después de muchos años volví a instalar openSUSE. Elegí el sabor Tumbleweed: Distribución de actualización contínua, y funciona muy bien en mi laptop de casi 10 años.

https://picandocodigo.net/2026/probando-opensuse-tumbleweed/

#Linux #OpenSUSE

Korovany: A Dzhva-Year Dream Demo⁣ #Windows #Linux <Tip-Top Studio⁣> が、配信開始されました。
https://store.steampowered.com/app/5020600/Korovany_A_DzhvaYear_Dream/?cc=jp&l=japanese

most helpful linux user

#linux #reddit

Deep Board Go⁣ #Windows #Mac #Linux #SteamDeck <Deep Board Studio⁣> が、350円値下げされて1150円になりました。
https://store.steampowered.com/app/4220150/Deep_Board_Go/?cc=jp&l=japanese

DEFCON⁣ #Windows #Mac #Linux #SteamDeck <Introversion Software⁣> が、2000円値下げされて1400円になりました。レビュー3344件で非常に好評。
https://store.steampowered.com/app/1520/DEFCON/?cc=jp&l=japanese

4本のインディータイトル⁣ #Windows #Mac #Linux #SteamDeck が、SteamDeck対応になりました。

@LeLutin_SurLeMur
1 - Changer la pate thermique
2 - Installer #Linux

Как диагностировать тормоза Linux‑сервера без перезагрузки вслепую

Сервер отвечает с задержкой, сайт еле открывается, а причина нагрузки неочевидна. В статье разберём пошаговую диагностику Linux‑сервера: как проверить CPU, память и диск с помощью top , free , vmstat , iostat и iotop , найти процесс‑виновник и понять, куда копать дальше.

https://habr.com/ru/companies/otus/articles/1068842/

#Linux #диагностика_Linux #системное_администрирование #Linuxсервер #мониторинг_ресурсов #производительность_сервера #CPU #оперативная_память #дисковая_подсистема #top

Mon PC portable (core i5 12500 sous win11) chauffe à mort.
Question aux experts linuxiens : vais-je gagner en température en passant sous Linux ou le pbm est-il inhérent à la machine ?
#linux #Linuxmint #config

Rule of thumb:
If working on your product isn't compatible with ethics, you're an unethical organization, making an unethical product.

#ethics #linux

Rule of thumb:
If working on your product isn't compatible with ethics, you're an unethical organization, making an unethical product.

#ethics #linux

We have hope that this week,we will have our poultry house finished and ready to provide shelter to the birds after the provision of all the necessary poultry house requirements like drinkers and food troughs.
#climate #agriculture #poultry #Birds #farming #layers #ClimateChange #ClimateCrisis #ClimateDiary #climateemergency #nature #solarpunk #Mastodon #linux #Fediverse #Photography #NaturePhotography #skills #animals #gardening #enterprenurship #food #waste #AnimalRescue #poultryfarming

We have hope that this week,we will have our poultry house finished and ready to provide shelter to the birds after the provision of all the necessary poultry house requirements like drinkers and food troughs.
#climate #agriculture #poultry #Birds #farming #layers #ClimateChange #ClimateCrisis #ClimateDiary #climateemergency #nature #solarpunk #Mastodon #linux #Fediverse #Photography #NaturePhotography #skills #animals #gardening #enterprenurship #food #waste #AnimalRescue #poultryfarming

On s’organise pour accompagner, soutenir et faire vivre l’organisation de ces install party partout en France et faire grandir les utilisateurs et utilisatrices de logiciels libres.

👉 Ça te dit d’agir pour notre souveraineté numérique et d’aider d’autres personnes à garder leur ordinateur ?

Inscris-toi à notre réunion en ligne pour qu’on t’explique !
📅 Rendez-vous le 14 septembre de 19h à 20h
https://piratonsmicrosoft.fr/inscription-14-septembre-2026
On compte sur toi ! 🚀

#climat #JusticeSociale #Piratonsmicrosoft #linux

New Mirai-Based Linux Botnet 'Evooo1Bot' Turns Victims Into Proxies

A sophisticated Linux botnet named Evooo1Bot has been actively targeting internet-facing devices since July 2026, exploiting multiple vulnerabilities in edge devices across diverse regions. Built on the leaked Mirai source code, this modular botnet features significantly enhanced capabilities including encrypted command-and-control communications, SSH brute-force scanning, and a reverse SOCKS relay module that transforms compromised devices into persistent proxies. The malware employs multiple encryption layers using AES-256-CTR, ChaCha20, and XOR-based obfuscation, alongside an integrated exploit arsenal targeting IoT devices, networking equipment, and enterprise applications. The SOCKS relay functionality enables attackers to conceal their origin, pivot into internal networks, and conduct follow-on operations through victim infrastructure, placing it well beyond conventional Mirai-derived malware in terms of technical sophistication.

Pulse ID: 6a7f349eb2e90e5a682c7e6f
Pulse Link: https://otx.alienvault.com/pulse/6a7f349eb2e90e5a682c7e6f
Pulse Author: AlienVault
Created: 2026-08-14 15:30:38

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#ChaCha20 #CyberSecurity #Edge #Encryption #InfoSec #IoT #Linux #Malware #Mirai #OTX #OpenThreatExchange #RAT #RCE #SSH #bot #botnet #AlienVault

New Mirai-Based Linux Botnet 'Evooo1Bot' Turns Victims Into Proxies

A sophisticated Linux botnet named Evooo1Bot has been actively targeting internet-facing devices since July 2026, exploiting multiple vulnerabilities in edge devices across diverse regions. Built on the leaked Mirai source code, this modular botnet features significantly enhanced capabilities including encrypted command-and-control communications, SSH brute-force scanning, and a reverse SOCKS relay module that transforms compromised devices into persistent proxies. The malware employs multiple encryption layers using AES-256-CTR, ChaCha20, and XOR-based obfuscation, alongside an integrated exploit arsenal targeting IoT devices, networking equipment, and enterprise applications. The SOCKS relay functionality enables attackers to conceal their origin, pivot into internal networks, and conduct follow-on operations through victim infrastructure, placing it well beyond conventional Mirai-derived malware in terms of technical sophistication.

Pulse ID: 6a7f349eb2e90e5a682c7e6f
Pulse Link: https://otx.alienvault.com/pulse/6a7f349eb2e90e5a682c7e6f
Pulse Author: AlienVault
Created: 2026-08-14 15:30:38

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#ChaCha20 #CyberSecurity #Edge #Encryption #InfoSec #IoT #Linux #Malware #Mirai #OTX #OpenThreatExchange #RAT #RCE #SSH #bot #botnet #AlienVault

Ubuntu no Windows prepara-se para ultrapassar a base de utilizadores em Linux. A utilização do Ubuntu através do Windows Subsystem for Linux (WSL) está a crescer a um ritmo substancialmente superior ao da instalação tradicional em computadores de secretária. 📈

🔗 https://tugatech.com.pt/t89395-ubuntu-no-windows-prepara-se-para-ultrapassar-a-base-de-utilizadores-em-linux

#linux #ubuntu #windows 

@heisec ach wie gut das niemand weiß, das ich auf Microsoft längst scheiß. #Linux

Evooo1Bot Linux Botnet Exploits Known Flaws to Turn Edge Devices Into SOCKS5 Proxies

Indicators extracted from public reporting. Source: https://www.fortinet.com/blog/threat-research/multi-functional-linux-botnet-evooo1bot

Pulse ID: 6a82e8aa5592b7ddd68c71f6
Pulse Link: https://otx.alienvault.com/pulse/6a82e8aa5592b7ddd68c71f6
Pulse Author: CyberHunter_NL
Created: 2026-08-17 10:55:38

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#AWS #CyberSecurity #Edge #HTTP #HTTPS #InfoSec #Linux #OTX #OpenThreatExchange #RCE #bot #botnet #socks5 #CyberHunter_NL