Description: Wake-on-LAN (WOL) is a network standard that allows a computer to be turned on or awakened remotely over a local network. This protocol is based on the use of special data packets, known as ‘magic packets’, which are sent to the target device’s MAC address. When the computer receives this packet, its network card, which remains active even when the system is powered off, detects it and activates the computer’s power-on function. WOL is particularly useful in various technological environments, such as enterprise settings and systems administration, where there is a need to efficiently and quickly power on multiple devices. Additionally, it allows administrators to manage and maintain computers without being physically present, thus optimizing time and resources. Implementing WOL requires that both the motherboard and the network card of the computer are compatible with this feature, and that it is enabled in the BIOS or UEFI settings. This standard has gained popularity due to its ability to facilitate remote access and network management, contributing to operational efficiency in various technological applications.
History: Wake-on-LAN was developed in the 1990s as part of an effort to improve network management and energy efficiency. Although the concept of remotely powering on devices existed before, WOL formalized this process and standardized it, allowing its adoption across a variety of hardware and operating systems. Over the years, WOL has evolved, incorporating improvements in security and compatibility with different network architectures.
Uses: WOL is primarily used in various technological environments for remote management of computers, allowing administrators to power on machines for updates, maintenance, or audits without being physically present. It is also used in smart home applications, where users can turn on devices from their mobile phones or computers.
Examples: A practical example of WOL is in an office where IT administrators can power on all employees’ computers in the morning to prepare them for work. Another example is in the home environment, where a user can turn on their PC to access files or applications remotely.
