September 2024
Intermediate to advanced
544 pages
12h 2m
Spanish
Content preview from Libro de cocina Linux, 2ª edición
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Capítulo 17. Mantener el tiempo con ntpd, chronyy timesyncd
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Mantener accurate time en tu ordenador, y en todos los hosts de tu red, es fácil y automático con NTP, el Protocolo de Tiempo de Red. NTP se implementa en Linux con ntpd, el demonio NTP, chrony, el sustituto moderno de ntpd, y timesyncd de systemd. Así es, amigos de , hay tres (al menos), cuéntalas, tres formas de gestionar automáticamente el tiempo en tu ordenador Linux.
ntpd y chrony también pueden funcionar como servidores de hora LAN, mientras que timesyncd es un cliente ligero más sencillo sin funciones de servidor. ntpd y chrony son implementaciones completas de NTP, mientras que timesyncd utiliza SNTP, el Protocolo Simple de Tiempo de Red.
La mayoría de las distribuciones de Linux proporcionan una configuración por defecto que apunta a los servidores de tiempo que mantienen. Estos servidores tienen nombres como 2.fedora.pool. ntp .org y 0.ubuntu.pool.ntp.org. No tienes que hacer nada, excepto asegurarte de no desactivar esto durante la instalación. En este capítulo aprenderás cómo comprobar tu configuración actual, cómo cambiarla y cómo configurar un servidor horario LAN.
Existe una red mundial de servidores de tiempo de uso gratuito para todos, y están organizados en estratos, empezando por el estrato 0. El estrato 0 es la fuente de todo el cronometraje, una red de relojes atómicos, receptores de ...
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