Linux Basics

How to Set Up SSH Keys on Rocky Linux 9 — step-by-step Linux tutorial on Progressive Robot

How to Set Up SSH Keys on Rocky Linux 9

SSH, or secure shell, is an encrypted protocol used to administer and communicate with servers. When working with a Rocky Linux server, chances are you will spend most of your time in a terminal session connected to your server through SSH. In this guide, we’ll focus on getting a reliable SSH configuration set up.

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How to Install and Use Screen on an Ubuntu Cloud Server — step-by-step Linux tutorial on Progressive Robot

How to Install and Use Screen on an Ubuntu Cloud Server

In this article, we will discuss how to install and use “screen”, a tool that allows you to manage multiple shell sessions inside a single terminal. The screen program is very useful for multi-tasking in an ssh environment, due to its ability to resume terminal sessions and perform multiple-concurrent tasks.

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How To Protect SSH with Fail2Ban on Rocky Linux 9 — step-by-step Linux tutorial on Progressive Robot

How To Protect SSH with Fail2Ban on Rocky Linux 9

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 9 server.

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Cómo agregar espacio de intercambio en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo agregar espacio de intercambio en Ubuntu 20.04

Una opción para evitar errores de memoria insuficiente en aplicaciones es agregar espacio de intercambio a su servidor. En esta guía, abordaremos la manera de añadir un archivo de intercambio a un servidor Ubuntu 20.04. <$>[warning] Advertencia: Si bien, en general, el…

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How To Handle apt-key and add-apt-repository Deprecation Using gpg to Add External Repositories on Ubuntu 22.04 — Linux tutorial on Progressive Robot

How To Handle apt-key and add-apt-repository Deprecation Using gpg to Add External Repositories on Ubuntu 22.04

apt-key is a utility used to manage the keys that APT uses to authenticate packages. It’s closely related to the add-apt-repository utility, which adds external repositories using keyservers to an APT installation’s list of trusted sources. Starting with Ubuntu 20.10, the use of apt-key yields a warning that the tool will be deprecated in the near future; likewise, add-apt-repository will also soon be deprecated.

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Cómo configurar claves de SSH en CentOS 7 — step-by-step Linux tutorial on Progressive Robot

Cómo configurar claves de SSH en CentOS 7

SSH, o shell seguro, es un protocolo cifrado que se usa para administrar servidores y comunicarse con ellos. Al trabajar con un servidor de CentOS, es probable que pase la mayor parte de su tiempo en una sesión de terminal conectada a su servidor a través de SSH. En esta…

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Cómo actualizar a Ubuntu 20.04 Focal Fossa — step-by-step Linux tutorial on Progressive Robot

Cómo actualizar a Ubuntu 20.04 Focal Fossa

La última versión de Soporte a largo plazo (LTS) del sistema operativo Ubuntu, Ubuntu 20.04 (Focal Fossa), fue lanzada el 23 de abril del 2020. Esta guía explicará cómo actualizar un sistema Ubuntu con versión 18.04 o posterior a Ubuntu 20.04. <$>[warning] Advertencia:…

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