What is Linux?

Linux is a free and open-source operating system that was created in 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution. A Linux distribution (often abbreviated as distro) is an operating system made from a software collection based on the Linux kernel and, often, a package management system. Distributions are maintained by individuals, loose networks of developers, volunteer organizations, and commercial entities. A distribution intended to run on servers may include more server-oriented components such as support for common administrative tasks. A distribution intended to run on desktop computers may include a windowing system, a desktop environment, and applications aimed at a general computing audience.

What is Red Hat OpenStack?

OpenStack is a suite of software tools for creating and managing public and private cloud computing platforms. OpenStack allows users to quickly deploy virtual machines and other instances that handle various duties for administering a cloud environment. One of OpenStack's strengths is that it facilitates horizontal scaling, which means that jobs that benefit from concurrent execution may easily serve more or fewer users on the fly by simply spinning up more instances.

What is a mail server?

MERN Stack is a Javascript stack for deploying full-stack web applications more easily and quickly. MongoDB, Express, React, and Node.js are the four technologies that make up the MERN Stack. It's intended to make the development process go more smoothly and efficiently.

Customized Software

Customized software is software that is specifically designed for a particular organization or user. It is usually created to address a specific need that is not met by off-the-shelf software. Customized software is more efficient and effective than off-the-shelf software since it is built to fit unique needs.

Introduction

The ELK stack is an acronym used to describe a stack that comprises three popular open-source projects: Elasticsearch, Logstash, and Kibana. Often mentioned as Elasticsearch, the ELK stack gives you the power to aggregate logs from all of your systems and applications, analyze these logs, and make visualizations for application and infrastructure monitoring, faster troubleshooting, security analytics, and more.

What is Nagios?

Nagios is an open-source monitoring system for computer systems. It was designed to run on the Linux OS and can monitor devices running Linux, Windows, and Unix operating systems (OSes).

What is Nagios?

Nagios is a mighty open-source monitoring system that enables companies to identify and fix IT infrastructure issues before they affect critical business processes. It's the most powerful and trusted network monitoring software on the market. It extends on proven, enterprise-class Open-Source components to deliver the best network, server, and application monitoring solution for today's demanding organizational requirements.

What is Nagios?

Nagios is a mighty open-source monitoring system that enables companies to identify and fix IT infrastructure issues before they affect critical business processes. Nagios monitors your entire IT infrastructure to guarantee systems, operations, services, and business processes are performing correctly. In the incident of a failure, Nagios can warn technical staff of the case, permitting them to commence remediation operations before outages affect business processes, end-users, or clients. With Nagios, you’ll never be left having to explain why an unseen structure outage hurts your association’s bottom line.

What is Open-source Software?

The term open source refers to software whose source code — the medium in which programmers create and modify software — is freely available on the Internet; by contrast, the source code for proprietary commercial software is usually a closely guarded secret.

What is a mail server?

A mail server (sometimes called MTA – Mail Transport Agent) is an application that is used to transfer mails from one user to another. A mail server handles both sending and receiving mails using protocols such as SMTP (Simple Mail Transfer Protocol) or ESMTP (Extended SMTP) for sending mails and POP3 (Post Office Protocol 3) or IMAP (Internet Message Access Protocol) for receiving mails.