April 2025
Intermediate to advanced
248 pages
7h 6m
Portuguese (Portugal, Brazil)
Content preview from Administração prática de sistemas Linux
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Capítulo 6. Instalar e desinstalar software
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Instalar e desinstalar software são tarefas básicas de um administrador de sistemas. Podes não as executar diariamente, mas são tarefas regulares para ti e para a tua equipa. Na maioria das vezes, instalas actualizações, que podem ser automatizadas. Qualquer novo software que instales deve ser acompanhado por uma justificação comercial, um registo de controlo de alterações e uma compreensão escrita das implicações de segurança, se existirem, por parte do requerente. A instalação de software com vulnerabilidades conhecidas é um caminho fácil para os agentes maliciosos comprometerem os teus sistemas.
A desinstalação de software também requer um registo de controlo de alterações devido ao perigo potencial de remoção de um pacote, diretório ou biblioteca necessário para outra função crítica do sistema ou serviço.
Existem três métodos de instalação de software: instalar a partir de repositórios utilizando um gestor de pacotes, instalar pacotes individuais descarregados para o sistema de ficheiros local, e compilar código fonte. Este capítulo cobre os três métodos. Existem dois métodos padrão de desinstalação de software: usando a ferramenta de gerenciamento de pacotes e, no caso de software compilado, usando um processo de desinstalação. Um terceiro método de desinstalação, não padrão, é desinstalar manualmente o software ...
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