Glossary

The Principle of Least Privilege (PoLP) requires that every module, user, or process must be able to access only the information and resources that are necessary for its legitimate purpose. It creates a restrictive environment where access is denied by default and explicitly granted only on a need-to-know basis.

The set of stages that a configuration item, service, or product goes through from conception to retirement.

Linux is a monolithic, open-source, Unix-like operating system kernel. The term is also used to refer to the entire family of operating systems based on the Linux kernel. It is the dominant operating system for servers, supercomputers, and embedded devices.

Refers to a service or other configuration item that is operating in the live environment (Production).

A controlled environment containing live configuration items used to deliver IT services to customers. Often referred to as "Production" or "Prod."

In container orchestration (like Kubernetes), a Liveliness Probe checks if an application is running. If the liveness probe fails, the orchestrator kills the container and restarts it.

A load balancer acts as the "traffic cop" sitting in front of your servers and routing client requests across all servers capable of fulfilling those requests in a manner that maximizes speed and capacity utilization and ensures that no one server is overworked, which could degrade performance.

A record of events that have occurred within a system. Logs are time-stamped and typically contain information about specific transactions, errors, or system states.