Linux Basics

Редактирование файла Sudoers — step-by-step Linux tutorial on Progressive Robot

Редактирование файла Sudoers

Команда sudo полезна для выполнения команд с привилегиями, как правило, вне сферы полномочий вашего пользователя. В этом учебном модуле мы расскажем, как редактировать файлы конфигурации для настройки функций sudo.

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How To Protect SSH with Fail2Ban on Rocky Linux 8 — step-by-step Linux tutorial on Progressive Robot

How To Protect SSH with Fail2Ban on Rocky Linux 8

Fail2ban is a service that can be run on your server to dynamically block clients that repeatedly fail to authenticate correctly with your services . This can help mitigate the affect of brute force attacks and illegitimate users of your services. In this guide, we’ll demonstrate how to install and configure fail2ban to protect SSH on a Rocky Linux 8 server.

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How To Set Filesystem Quotas on Debian 9 — step-by-step Linux tutorial on Progressive Robot

How To Set Filesystem Quotas on Debian 9

Quotas are used to limit the amount of disk space a user or group can use on a filesystem. Without such limits, a user could fill up the machine’s disk and cause problems for other users and services. In this tutorial we will install command line tools to create and inspect…

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Como configurar chaves SSH no CentOS 8 — step-by-step Linux tutorial on Progressive Robot

Como configurar chaves SSH no CentOS 8

O SSH, ou shell seguro, é um protocolo criptografado usado para administrar e se comunicar com servidores. Ao trabalhar com um servidor CentOS, existem boas chances de você gastar a maior parte do seu tempo em uma sessão de terminal conectado ao seu servidor através do…

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Einrichtung von SSH-Schlüsseln unter Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Einrichtung von SSH-Schlüsseln unter Ubuntu 18.04

SSH oder Secure Shell ist ein verschlüsseltes Protokoll zur Verwaltung und Kommunikation mit Servern. Wenn Sie mit einem Ubuntu-Server arbeiten, verbringen Sie wahrscheinlich die meiste Zeit in einer Terminalsitzung, die über SSH mit Ihrem Server verbunden ist. In diesem…

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How To Set Up Time Synchronization on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up Time Synchronization on Ubuntu 18.04

Accurate timekeeping has become a critical component of modern software deployments. Whether it’s making sure logs are recorded in the right order or database updates are applied correctly, out-of-sync time can cause errors, data corruption, and other hard to debug…

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How To Upgrade to Ubuntu 18.04 Bionic Beaver — step-by-step Linux tutorial on Progressive Robot

How To Upgrade to Ubuntu 18.04 Bionic Beaver

<$>[warning] Warning: As with almost any upgrade between major releases of an operating system, this process carries an inherent risk of failure, data loss, or broken software configuration. Comprehensive backups and extensive testing are strongly advised. To avoid…

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Linuxでファイルを検索する:findとlocateの使い方 — step-by-step Linux tutorial on Progressive Robot

Linuxでファイルを検索する:findとlocateの使い方

ファイルの検索は、オペレーティングシステムを問わずごく一般的なタスクです。Linuxの「find」と「locate」コマンドは、どちらもファイルシステムのファイルの検索に使用します。このガイドでは、これら2つのツールを使用して、個別にファイルのクエリを作成する方法を説明します。

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