Linux is a widely used operating system known for its application in servers and enterprise environments. Its open-source nature allows for high levels of customization, making it a preferred choice for developers and system administrators. Linux offers stability, security, and performance, which are critical for server operations. With various distributions like Ubuntu, CentOS, and Red Hat, it caters to different needs and preferences. The extensive community support also contributes to its robust ecosystem, ensuring continuous updates and improvements, making Linux a reliable backbone for many enterprise applications.