All Articles
Browse all Linuxize tutorials, guides, and references.
How to Set Up a Firewall with FirewallD on CentOS 7
FirewallD is a complete firewall solution that manages the system's iptables rules and provides a D-Bus interface for operating on them. In this tutorial, we show you how to set up a firewall with FirewallD on your CentOS 7 system and explain you the basic FirewallD concepts.

How to Install Tomcat 9 on Debian 9
This tutorial will show you how to install Apache Tomcat 9.0 on Debian 9 and configure the Tomcat web management interface.

How to Install Tomcat 9 on CentOS 7
This tutorial covers the steps required to install Tomcat 9 on CentOS 7. Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages, Java Expression Language, and Java WebSocket technologies.

How to Install Tomcat 9 on Ubuntu 18.04
This tutorial will show you how to install and configure Tomcat 9 on Ubuntu 18.04. Apache Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages, Java Expression Language, and Java WebSocket technologies.

How to Configure and Manage the Firewall on CentOS 8
In this tutorial, we will talk about how to configure and manage the firewall on CentOS 8. We'll also explain the basic FirewallD concepts.

How to Install Tomcat 9 on Debian 10 Linux
This tutorial explains how to install Apache Tomcat 9.0 on Debian 10 Buster and configure the Tomcat web management interface.

How to Change Hostname on CentOS 8
This guide explains how to set or change the hostname on CentOS 8 without needing to restart the system.

How to Install Python 3.8 on Ubuntu 18.04
In this tutorial we'll cover two different ways to install Python 3.8 on Ubuntu 18.04. The first option is to install the deb package from the deadsnakes PPA, and the second one is by building from the source code.

How to Add User to Sudoers in CentOS
In CentOS you have two options to grant sudo access to a user. The first one is to add the user to the sudoers file. The second option is to add the user to the wheel group.

How to Install Python on CentOS 8
Python is one of the most popular programming languages in the world. This guide will walk you through installing Python 3 and Python 2 on CentOS 8.

How to Install Jenkins on CentOS 8
Jenkins is the most popular open-source, Java-based automation server. This tutorial covers the steps to install Jenkins on CentOS 8 from the official Jenkins repository.

How to Install GCC Compiler on CentOS 7
The GNU Compiler Collection (GCC) is a collection of compilers and libraries for C, C++, Objective-C, Fortran, Ada, Go, and D, programming languages. This tutorial covers the steps required to install the GCC compiler on CentOS 7.

How to Install GCC Compiler on Ubuntu 18.04
The GNU Compiler Collection (GCC) is a collection of compilers and libraries for C, C++, Objective-C, Fortran, Ada, Go, and D, programming languages. This tutorial covers the steps required to install the GCC compiler on Ubuntu 18.04

Secure Apache with Let's Encrypt on Debian 9
This tutorial will guide you through the process of obtaining a free Let's Encrypt using the certbot tool on Debian 9. We'll also show how to configure Apache to use the new SSL certificate and enable HTTP/2

Secure Apache with Let's Encrypt on CentOS 7
In this tutorial, we will cover the steps necessary to install a free Let's Encrypt SSL certificate on a CentOS 7 server running Apache as a web server.

Secure Apache with Let's Encrypt on Ubuntu 18.04
In this tutorial, we'll provide a step by step instructions about how to secure your Apache with Let's Encrypt using the certbot tool on Ubuntu 18.04.

Secure Apache with Let's Encrypt on CentOS 8
This tutorial explains how to install a free Let's Encrypt SSL certificate on CentOS 8 running Apache as a web server. We'll use the certbot tool to obtain and renew the certificates.

How to Install PostgreSQL on Debian 10
This tutorial walks you through the steps of installing the PostgreSQL database server on Debian 10. PostgreSQL, often known simply as Postgres, is an open-source general-purpose object-relational database management system.

How to Install Node.js and npm on CentOS 8
In this article we're going to walk you through two different ways to install Node.js and npm on CentOS 8. Choose the installation option that might be most appropriate for your environment. Node.js is a cross-platform JavaScript runtime environment built on Chrome's JavaScript.

Python Enumerate Function
enumerate() is a built-in function in Python that allows you to have an automatic counter while looping over iterables.
