Ansible featured image

Installing and Configuring Ansible on Ubuntu 20.04

If you are a system administrator, it’s important that you have a consistent way of managing all of the servers and computers you are using. Configuration management systems can streamline the process to a great degree. They manage all the systems efficiently from a central location. On Linux, there are multiple configuration management systems available. For example, Puppet, Chef, Ansible, …

install Webmin featured image

How to Install Webmin on Ubuntu 18.04

For system administrators, Webmin is a boon. It’s a web-based control panel that allows managing a Linux machine remotely, using a modern web-based interface. Webmin can change various system configurations on the fly, including web servers and databases. It can also manage users, groups, and software packages. In this guide, we will walk you through the steps of installing and …

CentOS server configuration featured image

Performing Server Setup Using CentOS 8

Introduction In this guide, we are going to explore how exactly you can go about setting up your server when using CentOS 8. There is a configuration process that you have to follow. We will divide the configuration up into five individual steps. You will be able to perform server setup easily following these simple steps. Doing so will strengthen …

HAProxy featured image

HAProxy and Load Balancing Concepts: the Basics

Introduction High Availability Proxy (HAProxy), is a popular open-source proxying and TCP/HTTP load balancer solution able to run on Solaris, FreeBSD, and Linux. It is most commonly used to enhance the reliability and performance of a server environment by providing a balanced distribution of workload across multiple servers. This type of tool is used in many high-profile environments like Instagram, …

secure redis featured image

How to Install and Secure Redis on Ubuntu 18.04

Redis is a powerful in-memory key-value store that can be used as a database server, cache, and message broker. It’s widely known for its fast performance, flexibility, and support for a wide variety of languages. It’s free and open-source software that’s written in the C programming language. In this guide, check out how to install and secure Redis on Ubuntu …

Netcat utility featured image

Netcat Utility on Linux: Testing TCP/UDP Connections on a VPS with Netcat

Introduction One of the biggest advantages of using Linux is the plethora of helpful utilities it provides. The in-program features are usually sufficient for most programmers to do their work. This means that most of the time, you will not need to download external programs and software. The built-in tools will provide you enough utility. Among these helpful features is …

Grep featured image

Using Grep and Regex to Search Text Patterns

The grep command is a powerful utility to search for patterns in text. It comes pre-installed in any Linux distro. Here is our tutorial that goes over setting up the LAMP Stack -Linux, Apache, MySQL, and PHP. The name grep stands for global regular expression print. The tool searches for the specified pattern in the input. In principle, it sounds …

service crash part 2 featured image

How to Configure a Linux Service to Auto-Start After a Reboot or System Crash: Part 2 (Theoretical Explanations)

In this second installment of the two-part tutorial on configuring Linux services to start automatically after a reboot or system crash, we will discuss the init system in detail. You can refer to Part 1 of the series: How to Configure a Linux Service to Auto-Start After a Reboot or System Crash: Practical Examples here. The current tutorial will be …

System Crash featured image

How to Configure a Linux Service to Auto-Start After a Reboot or System Crash: Part 1 (Practical Examples)

Introduction In computing, things don’t always go as planned. Oftentimes unexpected system crashes prompt system admins to initiate reboots and restart of individual services. Figuring out and restarting every service your application needs to run after a system crash or reboot can be tedious. In this first installment of the two-part tutorial, we will show you how to configure services …

Sudoers File featured image

Configuring the Linux Sudoers File

Introduction Do you ever wonder why you must type “sudo” while trying to execute certain commands in a Linux or Unix Operating System environment? Sudo is actually an abbreviation, standing for “super-user do”. When you use the sudo command, you can run programs and execute commands with the security privileges of another user. By default, the sudo command allows system …

setting up python featured image

Installing Python 3 and Setting up a Local Programming Environment on Ubuntu 16.04

Introduction Python is an interactive, object-oriented, and simple programming language which can be used for a plethora of different programming projects. A fun fact is that Python is not named after the python snake but after the comedy television show Monty Python’s Flying Circus. Python is a great language to get started with programming and a great choice for experienced …

Manage Processes in Linux- a Guide on Using ps, kill, and nice

Introduction When most of us use computers, we run various applications. These applications are run by programs called servers or operating systems. There are many different kinds of servers that work in different ways. One of them is Linux. Linux runs applications in the form of processes. In Linux, we refer to each application as a ‘process’. The server is …