Software Infrastructure (DevOps)

Firewall

A network security system that monitors incoming/outgoing network traffic, decides whether to allow specific traffic or block it due to security rules, it establishes a barrier between a secure internal network and Internet.

FreeBSD

An open source Unix-like operating system, used to power modern servers, desktops, and embedded platforms, it provides networking, performance, security and compatibility features. 

FTP

Stands for File Transfer Protocol, a standard network protocol for transmitting files between computers on the Internet over TCP/IP connections, built on a client-server model architecture.

Ganglia

A scalable, distributed monitoring tool that provides a complete real-time monitoring and execution environment, designed for high-performance computing systems, clusters and networks. 

Gateway

A network node, link between two computer programs or systems that connects two networks using different protocols together, used to join two dissimilar networks, the most common gateway is a router.  

GNU

A Unix-compatible software system developed by the Free Software Foundation, produces non-proprietary free software, uses the Linux kernel. GNU stands for GNU is Not Unix. 

Gunicorn

Stands for Green Unicorn. A Python WSGI HTTP Server for UNIX.

HAProxy

Stands for High Availability Proxy, open source software TCP and HTTP Load Balancer, proxying solution which can be run on Linux, Solaris, used to improve the performance of a server environment by distributing the workload across multiple servers. 

HP Diagnostics

A monitoring tool used to monitor application on different platforms (Java, .Net, Oracle DB, SQL server, SAP, etc), allows to drill down into the code level to find the exact bottleneck and resolve it. 

HTTP

Stands for Hypertext Transfer Protocol. 

https

A protocol for secure communication over an Internet, it consists of Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security. 

Hyper-convergence

A type of infrastructure system with a software-defined architecture, it tightly integrates compute, storage, networking and virtualization resources, frequently used in a data center.

Icinga

An open source network monitoring system used to check the availability of resources, notifies users of outages, also provides extensive BI data.

IIS

Stands for Internet Information Services. A web server from Microsoft that runs on Windows systems and is used to host websites and other content on the web.

iptables

A userspace application program, command line utility that allows to configure to set up, maintain, and inspect the the Linux kernel firewall tables.

IMAP

Stands for Internet Message Access Protocol, a standard email protocol that stores email messages on a mail server, allows to view and manipulate the messages as locally stored on the end user's computing devices.

IM

Stands for Instant messaging, a type of online communications service that provides real-time text transmission over the Internet through a software application, allows to create a private chat room using text-based communication. 

IPsec

Stands for Internet Protocol Security, a framework for a set of protocols for security at the network, ensure private communications, has been deployed widely to implement VPNs

JConsole

A Java graphical monitoring tool used to monitor Java Virtual Machine and Java applications, it complies to the Java Management Extensions specification.

Kubernetes

An open-source system for automating deployment, scaling, and management of containerized apps.

Kernel module

A piece of code that can be loaded into the kernel demand which extends the functionality of the kernel without rebooting the system, allows the kernel to access hardware connected to the system.

KVM

Stands for Kernel-based Virtual Machine, a Linux kernel virtualization tool that allows a user space program to utilize the hardware virtualization features of various processors. 

LDAP

Stands for Lightweight Directory Access Protocol, a software protocol mostly used by medium-to-large organi­zations for accessing and maintaining directory information services over an Internet protocol network.

Linux

A Unix-compatible, open source and community-developed operating system for computers, servers, mainframes, mobile devices. Created by Linus Torvalds in 1991. 

Linux Distributions

Ubuntu, RedHat, CentOS, Suse, Debian.

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