Qubes OS is a security-oriented, Fedora-based desktop Linux distribution whose main concept is "security by isolation" by using domains implemented as lightweight Xen virtual machines. It attempts to combine two contradictory goals: how to make the isolation between domains as strong as possible, mainly due to clever architecture that minimises the amount of trusted code, and how to make this isolation as seamless and easy as possible.
Andrew David Wong has announced the release of Qubes OS 4.1.0, a major new update from the project that focuses on Linux operating system security by isolating computing tasks into separate "qubes". This version brings a variety of improvements, bug fixes and component updates: "At long last, the Qubes 4.1.0 stable release has arrived. The culmination of years of development, this release brings a host of new features, major improvements and numerous bug fixes. The GUI domain is a qube separate from dom0 that handles all display-related tasks and some system management. This separation allows us to more securely isolate dom0 while granting the user more flexibility with respect to graphical interfaces. Qrexec is is an RPC (remote procedure call) mechanism that allows one qube to do something inside another qube. The qrexec policy system enforces who can do what and where. Qubes 4.1 brings a new qrexec policy format, significant performance improvements, support for socket services and policy notifications that make it easier to detect problems.
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Qubes OS is a security-oriented, Fedora-based desktop Linux distribution whose main concept is "security by isolation" by using domains implemented as lightweight Xen virtual machines. It attempts to combine two contradictory goals: how to make the isolation between domains as strong as possible, mainly due to clever architecture that minimises the amount of trusted code, and how to make this isolation as seamless and easy as possible.
