HowtoForge provides user-friendly Linux tutorials.
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How to Find Active SSH Connections on Linux
Author: Hitesh Jethva • Tags: linux, security • Comments: 0 • Published: May 13, 2020If you are Linux system administrator and responsible for managing servers then you may often need to know how many ssh connections are active on your server and where the connections come from. This tutorial shows you different ways to identify the connections.
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Linux pgrep Command Tutorial for Beginners (10 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 2 • Updated: May 13, 2020You might already know about the grep command in Linux, which searches for a pattern, and then prints the matching text in output. What if the requirement is to apply this kind of processing to fetch select information about processes currently running in the system?
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How to Install Ruby on Rails (RoR) on Debian 10
Author: Muhammad Arul • Tags: debian, linux, programming, server, web server • Comments: 0 • Published: May 12, 2020In this tutorial, we will show you how to install Ruby on Rails on the Debian Buster 10. This guide will cover the RVM (Ruby Version Manager) installation, PostgreSQL database installation, and creating the simple CRUD application with Ruby on Rails and using PostgreSQL as the backend database.
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Linux pinky Command Tutorial for Beginners (8 Examples)
Author: Himanshu Arora • Tags: linux, ubuntu • Comments: 0 • Updated: May 11, 2020The finger command in Linux is a popular tool to fetch information related to system users. Pinky is a lightweight alternative that comes pre-installed (at least on Ubuntu).
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How to Install Seafile with Nginx on Ubuntu 20.04 LTS
Author: Muhammad Arul • Tags: linux, server, ubuntu, web server • Comments: 0 • Published: May 11, 2020Seafile is an open source file-hosting and cloud storage system similar to Dropbox, but you can install and run it on your own server. In this tutorial, I will show you step-by-step how to install and configure a Seafile server with Nginx web server and the MySQL database.
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How to Securely Destroy/Wipe Data on Hard Drives with shred on Linux
Author: Falko Timme • Tags: linux, security • Comments: 19 • Updated: May 08, 2020Sometimes you need to destroy or wipe data from hard drives (for example, before you sell your old hard drives on eBay) so that nobody else can access them. Simply deleting data (e.g. with rm) is not enough because that just removes the file system pointer, but not the data, so it can easily be undeleted with recovery software. Even zero'ing out your hard drive might not be enough. Here's where shred comes into play - shred can overwrite the files and partitions repeatedly, in order to make it harder for even very expensive hardware probing to recover the data.
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Linux vmstat Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 0 • Updated: May 08, 2020If you are looking for a command line utility that you can use to access information about processes, CPU activity, memory, and more, you'll be glad to know that vmstat does this for you.
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How to Install Nextcloud with Nginx and Let's Encrypt SSL on Ubuntu 20.04 LTS
Author: Muhammad Arul • Tags: linux, ubuntu, web server • Comments: 6 • Published: May 08, 2020In this tutorial, we will show you how to install and configure the latest Nextcloud 18 release on an Ubuntu 20.04 server. We will run Nextcloud with an Nginx web server and PHP7.4-FPM and use MariaDB server (a MySQL fork) as the database system. Nextcloud is a free (Open Source) Dropbox-like software, a fork of the ownCloud project.
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Linux taskset Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 0 • Updated: May 07, 2020In this tutorial, we will discuss a utility - dubbed taskset - that lets you achieve processor affinity. Ever heard of the term processor affinity? It's a feature that allows you to bind or unbind processes to a particular central processing unit, or a range of CPUs.
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How to Install Nginx with PHP and MySQL (LEMP Stack) on Ubuntu 20.04 LTS
Author: Muhammad Arul • Tags: linux, mysql, nginx, php, server, ubuntu, web server • Comments: 0 • Published: May 07, 2020This tutorial shows how you can install Nginx on an Ubuntu 20.04 LTS server with PHP 7.4 support (through PHP-FPM) and MySQL support (LEMP = Linux + Nginx (pronounced "engine x") + MySQL + PHP).
