IT Glossary & Dictionary

A Linux kernel feature that provides process isolation by creating separate instances of global system resources.

A method of mapping private IP addresses to public IP addresses, allowing multiple devices to share a single public IP.

A command-line tool that displays network connections, routing tables, and interface statistics on a system.

A set of rules that control inbound and outbound traffic at the subnet level, acting as a stateless firewall in cloud and enterprise networks.

A device or software that connects two or more network segments at the data link layer, forwarding traffic based on MAC addresses.

The practice of continuously observing network infrastructure to detect failures, performance degradation, and security threats.

A Linux kernel feature that provides isolated network stacks with independent interfaces, routing tables, and firewall rules.

A formatted unit of data carried over a network, containing headers with routing information and a payload with the actual data.

The practice of dividing a network into isolated segments to improve security, performance, and management.

The physical or logical arrangement of nodes and connections in a computer network, such as star, mesh, ring, or bus configurations.

The modern Linux packet filtering framework that replaces iptables with a unified, more efficient rule-processing architecture.

A high-performance web server and reverse proxy known for its stability, low resource usage, and ability to handle many concurrent connections.

A command that runs a process immune to hangup signals, allowing it to continue after the terminal session ends.

The process of organizing database tables to reduce data redundancy and improve data integrity.

A category of databases that store data in non-tabular formats, optimized for specific data models and access patterns.

A fundamental library for numerical computing in Python, providing efficient multi-dimensional arrays and mathematical operations.