https://hastur.tiaro.xyz/ 2026-07-17T12:33:03+00:00 https://hastur.tiaro.xyz/ https://hastur.tiaro.xyz/lib/tpl/dokuwiki/images/favicon.ico text/html 2023-02-14T19:58:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:additional_repos&rev=1676397535&do=diff How to add 3rd party repository in Ubuntu Things become more and more complicated, so I decided to write instruction Add signing key for repository You should always put signing key path to repository, like this: deb [signed-by=/usr/share/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x jammy main text/html 2023-09-12T13:26:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:al2023&rev=1694514401&do=diff Amazon Linux 2023 Package manager To check the current repository version, run the following command: rpm -q system-release --qf "%{VERSION}\n" To check for newer repository versions: sudo dnf check-release-update You can use the dnf check-update command to check for any updates for your system. For AL2023, we recommend that you add the text/html 2021-12-08T11:58:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:alpine&rev=1638957529&do=diff Alpine Linux Підготовка Alpine Linux для тестів: docker pull alpine:3 && docker run -it --rm alpine:3 sh Оновимо базу даних пакетів та встановимо manpages: apk add --update-cache mandoc man-pages text/html 2024-04-16T02:52:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:bash_config&rev=1713225173&do=diff Bash configuration About Fedora 38 Fedora checks ~/.bashrc.d/ existence and sources everything from it. So move files below to this directory as main, aliases and remove line [ -f "$HOME/.bash_aliases" ] && source "$HOME/.bash_aliases" from main config text/html 2020-08-03T00:04:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:chrony&rev=1596402254&do=diff Chrony Найкращий сервіс для синхронізації часу - Chrony Налаштування Verify that service systemd-timesyncd is not running: systemctl status systemd-timesyncd Stop it if it's running: sudo systemctl stop systemd-timesyncd sudo systemctl disable systemd-timesyncd text/html 2017-09-29T13:10:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:docker&rev=1506679820&do=diff Запустить redis в контейнере и пробросить на 127.0.0.1:6379 docker run --name myredis -p 127.0.0.1:6379:6379 -d redis:3.2 проверка: redis-cli ping text/html 2023-06-12T16:51:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:firewall&rev=1686577889&do=diff Налаштування nftables Конфіг Створити конфіг /etc/nftables.conf: #!/usr/sbin/nft -f # Hook order is: ingress -> prerouting -> input/output/forward -> postrouting # see also https://xdeb.org/post/2019/setting-up-a-server-firewall-with-nftables-that-support-wireguard-vpn/ # Start by flushing all the rules. flush ruleset # Define variables define ext_if = eno1 define lo_if = lo define home_ip = 80.80.80.80 define vps_ip = 81.81.81.81 # include all files in a given directory using an absolut… text/html 2022-07-12T11:01:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:flatpak&rev=1657612913&do=diff This is outdated. Officially it's recommended to use system-wide Flatpak, without --user: <https://docs.flatpak.org/en/latest/using-flatpak.html#system-versus-user> Search for package flatpak --user search octave Install package flatpak --user install flathub org.octave.Octave Show all installed packages flatpak --user list text/html 2024-10-22T12:31:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:flatpak_install&rev=1729589498&do=diff Install Flatpak sudo apt install flatpak flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo Add to bashrc: export XDG_CONFIG_HOME=$HOME/.config export XDG_CACHE_HOME=$HOME/.cache export XDG_DATA_HOME=$HOME/.local/share text/html 2024-12-23T20:04:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:g213&rev=1734977082&do=diff Налаштування клавіатури Logitech G213 Якщо нічого не зробити, то клавіатура зовсім не буде світитися - незручно. Установка програми Можна встановити пакет Убунту: text/html 2024-10-21T02:21:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:lighttpd&rev=1729466496&do=diff Lighttpd Install PHP First you must install and configure PHP-FPM. In Debian 12 there's PHP 8.2, but latest as of this writing is PHP 8.3. sudo apt install apt-transport-https lsb-release ca-certificates sudo wget -O /etc/apt/keyrings/php.gpg https://packages.sury.org/php/apt.gpg echo "deb [signed-by=/etc/apt/keyrings/php.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" | \ sudo tee /etc/apt/sources.list.d/php.list sudo apt update sudo apt install php8.3 php8.3-{cli,fpm,curl,opcach… text/html 2026-03-06T18:16:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:limits&rev=1772813803&do=diff Linux limits встановлення лімітів на відкриті файли Проблема Якась програма падає при старті з помилкою “Too many open files” Налаштування $HOME/.config/systemd/user.conf.d/limits.conf text/html 2023-02-14T15:48:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:nftables&rev=1676382484&do=diff Nftables Загальна інформація table refers to a container of chains with no specific semantics. chain within a table refers to a container of rules. rule refers to an action to be configured within a chain. Правила зчитуються із файла text/html 2026-02-26T11:41:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:openlitespeed&rev=1772098877&do=diff OpenLiteSpeed Встановлення OpenLiteSpeed 1. Додати репозиторій: sudo wget -O - https://repo.litespeed.sh | sudo bash 2. Встановити вебсервер: sudo apt update sudo apt install openlitespeed 3. Встановити спецільний PHP з модулями: text/html 2020-10-28T02:50:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:shell&rev=1603846213&do=diff 13 Tips & Tricks for Writing Shell Scripts with Awesome UX Prefixing your commands or scripts with a timestamp text/html 2025-01-08T13:26:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:sound_blaster_x4&rev=1736335590&do=diff Налаштування звукової карти Sound Blaster X4 звук працює навіть із коробки. Але мабуть непогано доналаштувати для відтворення хай-фай звуку. PulseAudio + PipeWire text/html 2023-09-17T03:47:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:ssh&rev=1694911651&do=diff SSH * SSH client config * SSH server config Посилання * SSH Hardening Guides from ssh-audit * OpenSSH hardening from Mozilla text/html 2023-06-12T16:35:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:sshd&rev=1686576912&do=diff Налаштування SSHD Баннер Створити файл із банером /etc/banner: ************************************************************************************ * This computer system is for authorized use only. All activity is logged and * regularly checked by system administrators. Individuals attempting to connect to, * port-scan, deface, hack, or otherwise interfere with any services on this system * will be reported. *********************************************************************************… text/html 2018-04-04T14:52:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:swap&rev=1522842754&do=diff Если нужно освободить файл подкачки: * Хорошо подумать еще раз: это может вызвать непредсказуемые ошибки приложений. Проще перегрузить комп. text/html 2020-08-04T12:30:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:systemd&rev=1596533403&do=diff Systemd Налаштування локалі Вивести поточні налаштування: localectl status Посилання Use systemd timers instead of cronjobs - Timers provide finer-grained control of events than cronjobs (rus) text/html 2021-06-08T12:58:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://hastur.tiaro.xyz/doku.php?id=software:os:linux:useful&rev=1623146304&do=diff Корисні програми direnv Дуже гарна програма для оновлення енва в каталогах: apt install direnv Читає конфіг у файлі .envrc у каталогах. Приклади: Задати профіль AWS: