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Desde que en 1991 Linus Torvalds publicara la primera versión del núcleo, los sistemas GNU/Linux han evolucionado drásticamente consiguiendo cada día más cuota de mercado. Hoy en día, podemos encontrar sistemas GNU/Linux tanto en grandes servidores como en equipos domésticos. Pero si hay un sectordonde Linux ha ganado sobradamente la batalla a los sistemas propietarios es en el sector de los servidores, ya que permiten ofrecer todo tipo de servicios: servidores web, servidores de correo electrónico, servidores de ficheros, servidores de telefonía IP…Los sistemas GNU/linux son los más estables, seguros, aprovechan mejor el hardware del equipo, y además, podemos configurarlo y adaptarlo completamente a nuestras necesidades. Todas estas ventanas han permitido que sean los más utilizados en los servidores de las empresas; y su cuota de mercado crece cada día. De hecho, en la actualidad, la istración de sistemas Linux es el sector con más ofertas del mercado laboral informático. El de sistemas es el responsable de que el sistema informático funcione correctamente y de modo seguro. Para ello, el es una persona que posee amplios conocimientos en sistemas operativos, redes, programación y como no, de seguridad informática. El objetivo del libro es que aprenda, de una forma práctica y sencilla, todo lo necesario para istrar el sistema operativo con más futuro.Temas incluidos:- Introducción a los sistemas GNU/Linux.- Instalación y configuración del sistema.- Gestión de s.- El sistema de ficheros.- Arranque y parada del sistema.- Monitorización del sistema.- Copias de seguridad.- Programación shell.- istración de la red.- Servicios básicos de red.- Servicios de Internet.