Software Infrastructure (DevOps)

POP3

Post Office Protocol 3 is a standard protocol for receiving emails. Used in the communication between an email clients and a server, it allows to check their email from any computer in the world.

Postfix

An open source mail transfer agent (MTA) used to handle the delivery of email messages on a server. It was created as an alternative to Sendmail. Postfix has a modular architecture that allows you to create a very reliable and fast mail system.

Postman

Google Chrome app for interacting with HTTP APIs. It presents you with a friendly GUI for constructing requests and reading responses. The people behind Postman also offer an add-on package called Jetpacks, which includes some automation tools and, most crucially, a Javascript testing library.

ProFTPD

Pro FTP daemon is a highly feature rich FTP server for Unix-like environments that exposes many configuration options. The server can be configured to run multiple virtual hosts, also supports chroot.

Prometheus

A monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach. All components of Prometheus communicate with each other via the HTTP protocol.

Pulumi

Pulumi is an open-source platform for Infrastructure as Code (IaC) that empowers developers and operators to create, deploy, and oversee cloud infrastructure using commonly used programming languages. Pulumi employs popular languages such as JavaScript, TypeScript, Python, Go, and .NET.  By leveraging Pulumi, users can articulate their infrastructure in code, much like they would with application logic. This encompasses resources like virtual machines, databases, networking components, and more. Pulumi then handles the provisioning and administration of these resources on cloud platforms like AWS, Azure, Google Cloud, and others.

Puppet

A cross-platform client-server application that allows you to centrally manage the configuration of operating systems and programs installed on multiple computers. Written in the Ruby programming language.

QNX

A mobile operating system aimed primarily at the embedded systems market. It is used in industrial, network, telecommunications, medical, and automotive devices.

RabbitMQ

A message broker (receiving, saving and delivering all messages) that offers a reliable, highly available, scalable and portable messaging system. It is written in the Erlang and available for all major programming languages.

Rancher

Rancher is an open source project that provides a container management platform built for organizations that deploy containers in production.

RANCID

Really Awesome New Cisco confIg Differ is a network management tool that can monitor configuration changes on network devices, and mail the diffs periodically. RANCID uses Expect to connect to the routers, send some commands and put the results in files.

Raygun

Full stack error, crash, and performance monitoring software. Provides the ability to detect, diagnose and resolve issues that are affecting end users.

RDP

Remote Desktop Protocol is a protocol that allows you to access remote computers without direct contact with them. The user can see all the files, run applications and perform all other tasks, as if depending on the computer.

Red Hat

Red Hat, Inc. is an American multinational software company providing open source software products to the enterprise community.

RHCE

Stands for Red Hat Certified Engineer. RHCE is a mid- to advanced-level certification that builds on topics covered in the RHCSA certification to include more advanced topics such as security and installing common enterprise networking (IP) services.

RHCSA

Stands for Red Hat Certified System Administrator. RHCSA is an entry-level certification that focuses on actual competencies at system administration, including installation and configuration of a Red Hat Enterprise Linux system and attach it to a live network running network services.

RHEL

Red Hat Enterprise Linux is a Linux distribution operating system designed for businesses, delivers military-grade security, 99.999% uptime, support for business-critical workloads. Works on desktops, servers, in the cloud, etc.

RPM

Stands for Red Hat Package Manager. It´s a package management system. Used to build, install, query, verify, update, and erase individual software packages.

RTP

Stands for Real-Time Transport Protocol. A network protocol used for transferring video and audio data. It is mostly used in entertainment and communication systems, such as real-time media streaming applications, teleconference services and web-based television. RTP uses a control protocol (RTCP) for monitoring data transport, especially for large networks.

Sailfish OS

Sailfish OS is a Linux-based operating system based on open source projects such as Mer and including a closed source UI. 

SaltStack

A configuration management software stack for fast and scalable deployment and event-driven automation in cloud management. Supports the IaaS approach for deploying and managing cloud computing.

Screen

A full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells. Programs continue to run when their window is currently not visible and even when the whole screen session is detached from the users terminal.

Sensu

A monitoring tool used for storing data, monitoring cloud environments, servers, containers, services, applications, network devices, remote resources. Sensu aims to be simple, malleable and scalable, and it is written in Ruby.

Servers

A server is a computer program or a device that provides functionality for other programs or devices, called "clients". This architecture is called the client–server model, and a single overall computation is distributed across multiple processes or devices. 

Shell

A software interface that enables the user to interact with the computer, it provides UI for access to an OS's services. Shells use either a command-line interface or GUI, it is an environment in which we can run our commands, programs, and shell scripts.