Software Infrastructure (DevOps)

Munin

A network and infrastructure monitoring software application used for monitoring and alerting services for servers, switches, applications, etc. Focuses on easy creating of new plugins (graphs).

MQTT

Message Queue Telemetry Transport is a subscribe, lightweight messaging protocol, designed for constrained devices and high-latency or unreliable networks. Aims to minimise network bandwidth.

Nagios

IT infrastructure monitoring tool designed to ensure systems, applications, services, and business processes are functioning properly. It can alert technical staff of the problem if it appears.

Netflix OSS

A set of frameworks and libraries written and open sourced by Netflix to solve the issues with designing distributed systems at scale.

Network monitoring

Network monitoring is the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages or other trouble.

Network protocols

TCP/IP (transfering data in computers and internet), HTTP (internet protocol), HTTP/2, WebSockets.

New Relic

A service for applications that includes a set of tools to monitor the performance of your applications and the stability of their work under various loads.

NFS

Network File System is a client/server system that allows a user to access files on a remote computer as though they were on the user's own computer. NFS provides clients with transparent access to the files and file system of the server.

nginx

An open source HTTP Web server and reverse proxy server, can also operate as an IMAP/POP3 mail proxy server, uses a scalable event-driven architecture. Can run on Linux, Mac OS X, Solaris, BSD variants, etc.

Nmap

Network Mapper is a security scanner, used to discover hosts and services on a computer network, therefore building a "map" of the network. It can be used to test security, to identify the OS and applications, to determine the type of firewall.

npm

Node Package Manager is a package manager that is installed with the Node.js platform. Thanks to it, we can install any package created by other developers to facilitate the solution of some problem.

OAuth

An open authorization protocol, based on HTTP, that allows you to give a third person limited access to the protected resources of the user without having to pass a login and password. It is used for website authorization using our already existed accounts like Google, Facebook, etc.

OData

Open Data Protocol is an open web protocol for querying and updating data. The protocol allows you to perform operations with resources, using HTTP commands as queries, and receive responses in XML or JSON formats.

OKHTTP

An HTTP client that supports the SPDY protocol. It allows multiple HTTP requests to share one socket connection. If your service has multiple IP addresses OkHttp will attempt alternate addresses if the first connect fails.

OpenBSD

OpenBSD is a free and open-source Unix-like operating system known for its strong focus on security and code correctness. It's based on the Berkeley Software Distribution (BSD) and is known for its proactive security measures and commitment to open-source principles.

OpenID Connect

An identity layer for verifying the End-User via an Authentications Server, used by mobile, JavaScript and web-based Clients. OpenID Connect is API-friendly, can be used by mobile and native applications, and offers features for security (e.g., identity data encription).

OpenSSL

Open source Secure Sockets Layer is a crypto library used to secure communications over computer networks, serves web sites, contains an implementation of the SSL and TLS protocols.

Oracle Linux System Administrator

Oracle Linux System Administrator (OCLSYSADM) installs, uses the Unbreakable Enterprise Kernel and configures Linux services, prepares the system for the Oracle Database, monitor, troubleshoot and more.

OS

Operating System is a program that allows to interact with the computer - all of the software and hardware on your computer. The operating system usually consists of the kernel of the operating system and the base set of applications.

OSPF

Stands for Open Shortest Path First. A link layer protocol that calculates the shortest path for connecting devices. OSPF uses a variant of the Dijkstra algorithm which allows it to find the shortest path between nodes. The path can also be calculated based on defined criteria.

OTRS

Open-source Ticket Request System is a request system for managing incoming inquiries, complaints, support requests, defect reports, customer calls and e-mails. The program is written in Perl, it supports many DBMS (MySQL, PostgreSQL, etc.).

PagerDuty

An operations performance platform that provides IT alert monitoring, on-call scheduling, escalation policies used to fix problems in apps, servers and websites across the entire incident lifecycle.

Patch Management

Patch Management is the process of managing a network of computers by regularly deploying all missing patches to keep computers up to date. 

Pepper

Contains a Python library and CLI scripts for accessing a remote salt-api instance. Pepperlib abstracts the HTTP calls to salt-api so existing Python projects can easily integrate with a remote Salt installation just by instantiating a class.

PerfMon

Performance Monitor is a system monitoring tool for Windows that monitors computer activities (CPU, memory usage) and used for measuring the performance of hardware, software services, applications.