September 2024
Intermediate to advanced
248 pages
7h 13m
Spanish
Content preview from Administración Práctica de Sistemas Linux
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Capítulo 13. Asegurar tu sistema
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Seguridad del sistema es la aplicación de configuraciones, software, políticas, reglas y buenas prácticas a un sistema (ya sea nuevo o tenga años) para que éste funcione sin tiempos de inactividad significativos debidos a fallos y compromisos de seguridad. Como administrador de sistemas, la seguridad es tu tarea más importante y la que más tiempo te lleva.
Este capítulo se centra en la prevención de los problemas de seguridad. Se tratan brevemente la detección y la mitigación. Aprenderás a proteger tanto los sistemas recién implementados como los que llevan años funcionando. Ningún tratamiento es exhaustivo porque surgen nuevas amenazas y vulnerabilidades a diario. Aprenderás a aplicar configuraciones básicas de seguridad a tus sistemas Linux. Dado que muchas grandes empresas tienen sus propias normas, las configuraciones de seguridad que recomiendo son un buen punto de partida, pero siempre debes cumplir los protocolos y políticas de seguridad corporativos.
Proteger la cuenta raíz
La cuenta de usuario root es la cuenta todopoderosa de todo sistema Linux, y debes proteger el acceso a ella. Si alguien compromete esta cuenta, puede bloquearte, destruir el sistema, robar datos o mantener el control sobre ella y utilizarla para pivotar y comprometer otros sistemas de tu red. Nunca anotes ni compartas la contraseña de root con nadie ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.