How to Batch Convert PNG Images to JPG Format in Linux

Although PNG offers a better image quality compared with JPG, the large size factor is usually a concern for Internet users. This is typically why PNG images are converted to JPG.

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In this article, you will learn how to convert multiple PNG images to JPG format from the Linux command line using ImageMagick and GraphicsMagick tools.

How to Install Audacity 3.0.0 in Ubuntu 20.04, Ubuntu 18.04 via Flatpak | UbuntuHandbook

The Audacity audio editor 3.0.0 was released a week ago as the new major release. Here’s how to install it in Ubuntu / Linux Mint via Flatpak package.

Audacity 3.0.0 features new all-in-one-file aup3 project file format, improved ‘Noise Gate’ effect, new ‘Label Sounds’ analyzer, and over 160 bug-fixes.

How to Install and Configure PHP OPcache on Ubuntu 20.04

OPcache is an Apache module for the PHP interpreter. It is used to increase performance by storing precompiled scripts in shared memory space.

Generally, it is used to speed up the performance of WordPress and PHP-based applications. OPcache removing the need for PHP to load and parse scripts on each request.

In this tutorial, we will show you how to install and configure PHP OPcache on an Ubuntu 20.04 VPS.

How To Install XFCE on Debian 10 - idroot

In this tutorial, we will show you how to install XFCE on Debian 10. For those of you who didn’t know, XFCE is a free lightweight, fast, and easy to use software desktop environment for Unix/Linux-like operating systems. It is designed for productivity and aims to be fast and low on system resources. Unlike GNOME and KDE desktops which are heavier, but XFCE uses fewer system resources. XFCE desktop does not need a modern GPU and its CPU and takes up less RAM. You can also install and run XFCE on an old hardware system without any problems.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of the XFCE Desktop environment on a Debian 10 (Buster).

How To Install Vim Text Editor on Ubuntu 20.04 LTS - idroot

In this tutorial, we will show you how to install Vim Text Editor on Ubuntu 20.04 LTS. For those of you who didn’t know, Vim is a highly configurable text editor for efficiently creating and changing any kind of text. It is especially useful for editing config files and programs written in shell, python, Perl, c/c++, and more. The latest release of Vim includes a few new features, bug fixes, and documentation updates.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of the Vim Text Editor on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

10 Quick Linux Tail Command with Examples

In our previous tutorial, we looked at the Linux head command and its example usages. The tail command is the complementary of the head command. It reads and prints out the last N lines in a file. Without any command options, it prints out the last 10 lines in a text file. In this guide, we will focus on the tail command and explore the various options that come with the command.

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In this guide, we will learn Linux tail command with practical examples. Tail command is used to print last 10 lines of a file on the terminal.

25 Iptables Netfilter Firewall Examples For Linux

How to Repair a Corrupted USB Drive in Linux - Make Tech Easier

Everyone has a flash drive. They’re great little things, and they make moving data around easy. However, sometimes flash drives can get corrupted or just flat-out quit working. Thankfully, if you’re using Linux, you already have access to an array of tools that can help you fix the problem. We are using Ubuntu for this tutorial, but everything applies to most modern Linux distributions. Here is how you can repair a corrupted USB drive in Linux.

How to install Q4OS 3.14

In this video, I am going to show how to install Venom Linux 20210312.

How to install Terraform on Linux such as Ubuntu 20.04 LTS server

Terraform is an open-source uniform configuration language that allows administrators to describe IT resources implementation in a “standardized” manner. It provides a command-line interface workflow to manage various types of cloud services such as Aws, Google Cloud, Vmware, Microsoft Azure, OpenStack, Oracle Cloud, Digital Ocean, and more…

How to install vnstat on Alpine Linux - nixCraft

nnStat is a free and open-source app for servers and routers. It is a console-based network traffic monitor. It keeps a log of the 5-minute interval, hourly, daily, monthly, and yearly network traffic for the selected interface(s). Let us see how to install vnStat on the Alpine Linux server to keep a tab on bandwidth usage.

How to protect documents with a digital signature in ONLYOFFICE Desktop Editors v.6.2

ONLYOFFICE Desktop Editors is a free open-source office suite that contains viewers and editors for text documents, spreadsheets, and presentations. Along with offline work, it’s possible to connect the app to the cloud (ONLYOFFICE, Nextcloud, ownCloud, Seafile) and collaborate on docs online. The code repository is available on GitHub under AGPL v.3.0 license.

How to replace Docker with Podman on a Mac | Enable Sysadmin [Ed: Free software, but on proprietary operating system]

Several months ago, I came back to my desk after lunch and to my chagrin, my macOS was making a long constant blowing sound—the fan was on high speed. Now, mind you, I have a fairly new and beefy Mac. 2.4 GHz, 8-core, 64GB running Big Sur, 11.2.1. So what in the world could be triggering my fan to such a high level? I discovered that the culprit was Docker. And the only way to rid myself of the noise was a Docker restart.

Let’s Encrypt: Secure Apache Web Server on Ubuntu 16.04

Starting with Chrome 56, the browser developed by Google marks non-secure pages containing password and credit card input fields as Not Secure in the URL bar. It was almost one year ago, when the Mountain View giant announced this choice.

Of course, everybody knows that secure is better then insecure; but in this case, the big problem with HTTP is that it lacks a system for protecting communications between clients and servers. This exposes data to different kinds of attacks, for instance, the “Man in the middle” (MIM), in which the attacker intercepts your data. If you are using some transaction system with your bank, using credit card infos, or just entering a password to log in to a web site, this can become very dangerous.

Informative guide to NC (Ncat) command in Linux - The Linux GURUS

Ncat command in Linux or NC command is used in the maintenance or diagnosis-related tasks for a network. Even though the ‘nc command’ or ‘ncat command’ are separate commands but they are similar to how they perform their functions & one can be used or replace by the other.

Similar to how CAT common in Linux has the ability to manipulate files, NC command in Linux has the ability to perform operations like read, write, or data redirections over the network.

Ncat command can be used as a utility to scan ports, monitoring or can also act as a basic TCP proxy. Organizations can utilize it to review the security of their networks, web servers, telnet servers, mail servers, etc, by checking the ports that are opened or unsecured and then secure them. NC command can also be used to capture information being sent by the system.

Monitoring: How To Install Sensu on Ubuntu 16.04 Server | Unixmen

Sensu is a free and open source tool for composing a monitoring system. It is entirely written in Ruby. It uses RabbitMQ to handle messages and Redis to store its data.

Sensu focuses on composability and extensibility, allowing to reuse monitoring checks and plugins from tools like Nagios and Zabbix.
This framework was designed to work with software like Puppet, Chef and Ansible, and it does not required additional workflow.