{"id":117505,"date":"2024-07-14T21:43:16","date_gmt":"2024-07-14T19:43:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-os-qubes-4-2-2-ispolzuyushhej-virtualizacziyu-dlya-izolyaczii-prilozhenij"},"modified":"2024-07-14T21:43:16","modified_gmt":"2024-07-14T19:43:16","slug":"obnovlenie-os-qubes-4-2-2-ispolzuyushhej-virtualizacziyu-dlya-izolyaczii-prilozhenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-os-qubes-4-2-2-ispolzuyushhej-virtualizacziyu-dlya-izolyaczii-prilozhenij","title":{"rendered":"Atualiza\u00e7\u00e3o do SO Qubes 4.2.2, que utiliza virtualiza\u00e7\u00e3o para isolar aplicativos","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Est\u00e1 dispon\u00edvel o lan\u00e7amento do sistema operacional Qubes 4.2.2, que implementa a ideia de usar um hipervisor para isolamento rigoroso de aplicativos e componentes do SO (cada classe de aplicativos e servi\u00e7os do sistema opera em m\u00e1quinas virtuais separadas). Recomenda-se um sistema com 16 GB de RAM (m\u00ednimo - 6 GB) e CPU de 64 bits Intel ou AMD com suporte \u00e0s tecnologias VT-x com EPT\/AMD-v com RVI e VT-d\/AMD IOMMU, sendo desej\u00e1vel a presen\u00e7a de GPU Intel (GPUs NVIDIA e AMD n\u00e3o foram suficientemente testadas). O tamanho da imagem de instala\u00e7\u00e3o \u00e9 de 6 GB (x86_64). <\/p>\n

Os aplicativos no Qubes s\u00e3o divididos em classes com base na import\u00e2ncia dos dados tratados e nas tarefas realizadas. Cada classe de aplicativos (por exemplo, trabalho, entretenimento, opera\u00e7\u00f5es banc\u00e1rias), assim como servi\u00e7os do sistema (subsistema de rede, firewall, gerenciamento de armazenamento, pilha USB, etc.), opera em separado m\u00e1quinas virtuais<\/a>, sendo executados usando o hipervisor Xen. Neste caso, os aplicativos indicados est\u00e3o dispon\u00edveis dentro de uma \u00fanica \u00e1rea de trabalho e s\u00e3o destacados por diferentes cores na borda da janela. Cada ambiente tem acesso de leitura ao sistema de arquivos raiz b\u00e1sico e ao armazenamento local, que n\u00e3o se sobrep\u00f5e ao armazenamento de outros ambientes, utilizando um servi\u00e7o especial para organizar a intera\u00e7\u00e3o entre aplicativos. <\/p>\n<\/p>\n

Como base para a forma\u00e7\u00e3o de ambientes virtuais, pode-se utilizar reposit\u00f3rios de pacotes do Fedora e Debian, al\u00e9m de que a comunidade d\u00e1 suporte a templates para Ubuntu, Gentoo e Arch Linux. \u00c9 poss\u00edvel organizar o acesso a aplicativos em uma m\u00e1quina virtual com Windows, assim como criar m\u00e1quinas virtuais<\/a> com base no Whonix para garantir acesso an\u00f4nimo atrav\u00e9s do Tor. A interface do usu\u00e1rio \u00e9 constru\u00edda sobre o Xfce. Quando o usu\u00e1rio inicia um aplicativo atrav\u00e9s do menu, esse aplicativo \u00e9 iniciado em uma m\u00e1quina virtual espec\u00edfica. O conte\u00fado dos ambientes virtuais \u00e9 definido por um conjunto de templates. <\/p>\n

Na nova vers\u00e3o, destacou-se a atualiza\u00e7\u00e3o das vers\u00f5es dos programas que formam o ambiente de sistema b\u00e1sico (dom0). Um modelo foi preparado para a forma\u00e7\u00e3o de ambientes virtuais com base no Fedora 40. <\/p>\n

Na vers\u00e3o 4.2, para prote\u00e7\u00e3o contra ataques relacionados \u00e0 manipula\u00e7\u00e3o de caracteres unicode e c\u00f3digos de caracteres inv\u00e1lidos em nomes de arquivos, foram introduzidas restri\u00e7\u00f5es sobre o uso de caracteres especiais em nomes de arquivos. Essa altera\u00e7\u00e3o gerou problemas ao copiar e mover arquivos que cont\u00eam caracteres n\u00e3o latinos nos nomes. Na vers\u00e3o 4.2.2, o comportamento antigo no tratamento de nomes de arquivos foi restaurado por padr\u00e3o, e um par\u00e2metro \"allow-all-names\" foi adicionado ao servi\u00e7o qubes.Filecopy para configura\u00e7\u00e3o.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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