HOW-TOs

Everything You Need to Know about Linux Input-Output Redirection

Are you looking for information related to the Linux input-output redirection? Then, read on. So, what’s redirection? Redirection is a Linux feature. With the help of it, you are able to change standard I/O devices. In Linux, when you enter a command as an input, you receive an output. It’s the basic workflow of Linux.

How to Use the VI Editor in Linux

If you’re searching for info related to the VI editor, this article is for you. So, what’s VI editor? VI is a text editor that’s screen-oriented and the most popular in the Linux world. The reasons for its popularity are 1) availability for almost all Linux distros, 2) VI works the same throughout multiple platforms, and 3) its user-friendly features. Currently, VI Improved or VIM is the most used advanced counterpart of VI.

Primer to Container Security

Containers are considered to be a standard way of deploying these microservices to the cloud. Containers are better than virtual machines in almost all ways except security, which may be the main barrier to their widespread adoption. This article will provide a better understanding of container security and available techniques to secure them. A Linux container can be defined as a process or a set of processes running in the userspace that is/are isolated from the rest of the system by different kernel tools.

How to Install and Uninstall KernelCare

In my previous article, I described what KernelCare is. In this article, I’m going to tell you how to install, uninstall, clear the KernelCare cache, and other important information regarding KernelCare. In case you’re yet to know about the product, here’s a short recap. KernelCare provides automated security updates to the Linux kernel. It offers patches and error fixes for various Linux kernels. So, if you are looking for anything similar, you have landed upon the right page. Let’s begin without further ado.

What’s KernelCare?

This article explains all that you need to know about KernelCare. But before studying about KernelCare, let’s do a quick recap of the Linux kernel. It’ll help you understand KernelCare better. The Linux kernel is the core part of Linux OS. It resides in memory and prompts the CPU what to do. Now let’s begin with today’s topic which is KernelCare. And if you’re a system administrator this article is going to present valuable information for you.

Creating a Modern Website with Ghost

Ghost is free and open-source web server software that you can use to host a website. It’s a unique and elegant web publishing platform. In this article we will explore all that the Ghost Platform provides such as a modern and sleek interface where you can publish articles, newsletters, and subscription-based content.

Simple Network Management Protocol - Not As Simple As You Would Suggest

The Simple Network Management Protocol (SNMP) has been an integral part of monitoring network environments since its introduction in 1988. It has established itself as the de facto standard in network monitoring. Many manufacturers support the protocol and have implemented an SNMP agent on their network devices. These agents allow monitoring solutions to query various data, such as bandwidth, CPU load, network interfaces, etc., without installing an additional agent on network equipment. 

The org-mode LaTeX exporter: LaTeX for non-TEXers

By: Pedro A. Aranda Gutiérrez This article shows how to configure and use the org-mode provided by Emacs to produce pretty documents. org is a multi-purpose structured text file format and Emacs can translate it to LaTeX files which, in turn, can be translated into pretty PDF documents, taking advantage of all the typesetting facilities provided by LaTeX. This is a compendium of tricks evolved out of the experience of working with Emacs, org-mode and LaTeX.

5 Distributions Of Linux To Consider For Your Server

Which distribution is right for your environment? In this article, we'll discuss some important concepts to keep in mind - and we'll go over the finer points of some of the more popular options. There's no shortage of opinions online regarding desktop distros, but in this article - we're going to focus on server deployments.

Three Ways To Improve Your Programming Skills

The ability to write code is a huge differentiator for every job role in an enterprise Linux environment. As an Operations and DevOps manager, I was constantly challenged to improve my team’s programming skills, and the team genuinely wanted to be more proficient. But how? Structured training is a standard answer: take a course! Our company, like many, invested enormously in learning resources. I’d sit with an engineer one-on-one and we’d ponder the online portal together, puzzling out the most appropriate Python learning path.

Design and Prototypical Implementation of an IRC Chat Server in Erlang OTP

Modern solutions must be designed resiliently to enable service provisioning during incidents. There are multiple solutions to develop high-available and reliable services that can be applied to various levels in a system’s architecture and design. Some programming languages are specifically designed to meet these challenges. The functional programming language Erlang provides inherent functionality to develop these resilient services. Therefore, this article presents the exemplary design and development of a communication service based on the Internet Relay Chat (IRC) protocol in Erlang to investigate its availability features.

What Version of RHEL am I Using?

RHEL or Red Hat Enterprise Linux is one of the many operating systems provided by Red Hat. Red Hat is a popular Linux OS and has started functioning ever since the mid-1990s. Red Hat earned a good reputation due to being stable, regularly updated, and reliable. If you are using RHEL and want to find its version, this article is for you. Now let’s check 7 useful methods to know what version of RHEL you are using.

Configuring TACACS+ Server With A Simple GUI

TACACS+ server implementation for Linux operating system, although neat, lacks a graphical user interface which makes daemon configuration a smooth and intuitive process. In the next few paragraphs, we will discuss how to configure the TACACS+ daemon on Linux operating system and demonstrate how to deploy a simple, yet intuitive, GUI used for the configuration of the TACACS+ instance.

How Can You Install Google Chrome Browser on Debian?

Google Chrome is a widely used web browser in the world. Google Chrome is fast and secure as well. However, it is not an open-source web browser. Hence, Debian comes with a pre-loaded Chromium browser, and not a Chrome. Chromium is an open-source browser. If you still want to install the Google Chrome browser on Linux, this article is for you. Installing Chrome on Linux has a little twist as it’s not an open-source browser. So let’s check out how you can easily install Chrome browser from a Linux terminal.

7 Important Linux Commands for Every Linux User

Linux might sound scary for first-time Linux users, but actually, it isn’t. Linux is a bunch of open-source Unix operating systems based on Linux Kernel. These operating systems are called Linux distributions, such as Fedora, Debian, Ubuntu, and Mint. This article presents a guide to 7 important Linux commands for every Linux user to know. So, let’s begin.