LXC
LXC (Linux Containers) is a lightweight virtualization technology that allows running multiple isolated Linux systems (containers) on a single Linux host using the same kernel. It provides operating-system-level virtualization by leveraging Linux kernel features like cgroups and namespaces to create secure, resource-controlled environments. LXC is often used for server consolidation, development/testing environments, and as a foundation for higher-level container platforms.
Developers should learn LXC when they need lightweight, fast containerization for Linux environments without the overhead of full virtual machines, particularly for system-level isolation, DevOps automation, or building custom container solutions. It's ideal for scenarios like creating reproducible development environments, running multiple services on a single server, or as a learning tool to understand container internals before moving to platforms like Docker.