CentOS

How To Add and Delete Users on a CentOS 7 Server — step-by-step Linux tutorial on Progressive Robot

How To Add and Delete Users on a CentOS 7 Server

When you first start using a fresh Linux server, adding and removing users is one of the most basic tasks that you should know how to do. In this guide, we will cover how to create user accounts, assign `sudo` privileges, and delete users on a CentOS 7 server.

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How To Deploy Rails Apps Using Passenger With Nginx on CentOS 6.5 — step-by-step Linux tutorial on Progressive Robot

How To Deploy Rails Apps Using Passenger With Nginx on CentOS 6.5

In this the cloud provider article, we are going to show you — from start to finish — how to have a rock solid Rails application deployment (i.e. published online) using the latest available CentOS operating system renowned for its stability. This will be alongside Phusion Passenger application server, known for its simplicity and excellent features, coupled with Nginx HTTP server running in front to handle and manage connections.

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How To Install and Secure the Mosquitto MQTT Messaging Broker on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install and Secure the Mosquitto MQTT Messaging Broker on CentOS 7

MQTT is a machine-to-machine messaging protocol, designed to provide lightweight publish/subscribe communication to “Internet of Things” devices. Mosquitto is a popular MQTT server (or broker, in MQTT parlance) that has great community support and is easy to install and configure. In this tutorial, we’ll install Mosquitto, retrieve SSL certificates from Let’s Encrypt, and set up our broker to use SSL to secure our password-protected MQTT communications.

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How To Configure Nginx to Use Custom Error Pages on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Configure Nginx to Use Custom Error Pages on CentOS 7

Nginx is a high performance web server capable of serving content with flexibility and power. When designing your web pages, it is often helpful to customize every piece of content that your users will see. This includes error pages for when they request content that is not…

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How To Use RVM to Manage Ruby Installations and Environments on a VPS — step-by-step Linux tutorial on Progressive Robot

How To Use RVM to Manage Ruby Installations and Environments on a VPS

RVM, the Ruby Version Manager, is an excellent tool for configuring and installing independent Ruby environments on a single machine. You can use this utility to compartmentalize Ruby installations and their associated software in order to develop in a clean environment. This guide will cover the basic usage of RVM on a Linux VPS.

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How To Install Prometheus using Docker on CentOS 7 — step-by-step Docker tutorial on Progressive Robot

How To Install Prometheus using Docker on CentOS 7

Prometheus is an open source monitoring system and time series database. It addresses many aspects of monitoring such as the generation and collection of metrics, graphing the resulting data on dashboards, and alerting on anomalies. To achieve this, it offers a variety of components that are run separately but used in combination.

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