February 2026
Intermediate to advanced
358 pages
10h 19m
Spanish
Content preview from Manual del equipo azul: respuesta ante incidentes (Spanish Edition)
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Capítulo 6. Investigación del sistema de datos volátilesde Linux
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En el campo de la observación, la suerte solo favorece a las mentes preparadas.
Louis Pasteur
La suerte favorece a los preparados.
Edna Mode
Este capítulo abarca procesos y comandos ampliamente aceptados para ejecutar, en el mejor orden posible, en sistemas Unix y Linux. Recuerda que los datos volátiles, como la memoria, los procesos y los puertos de red, cambian con frecuencia. Puede ser conveniente volver a ejecutar algunos de estos comandos a lo largo de un incidente, tal vez cada hora. La salida de texto de los comandos recopilada en un sistema Linux no es compatible con Windows debido a la conversión de retorno de carro y avance de línea.
Si vas a revisar datos en un sistema Windows, puedes convertir los datos del formato Unix o Linux al formato Windows con el comando dos2unix de Unix/Linux.
Como responsable de la respuesta a incidentes, debes tener en cuenta las principales áreas que hay que investigar en un sistema Linux: conexiones de red, procesos, archivos de configuración que normalmente se encuentran en /etc, el sistema de archivos, los directorios de inicio de los usuarios y la miríada de archivos .dot que contienen, y el contenido de /var/log .
Preparación
Hay varios pasos que hay que seguir para prepararse para gestionar un incidente en una plataforma Linux, tal y como se explica ...
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