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Registries: A Docker registry is a repository for Docker images. Docker clients connect to registries to download ("pull") images for use or upload ("push") images that they have built. Registries can be public or private. The main public registry is Docker Hub. Docker Hub is the default registry where Docker looks for images.
On 19 July at 04:09 UTC, CrowdStrike distributed a faulty configuration update for its Falcon sensor software running on Windows PCs and servers. A modification to a configuration file which was responsible for screening named pipes, Channel File 291, caused an out-of-bounds memory read [14] in the Windows sensor client that resulted in an invalid page fault.
Depending on the application, the crash may contain the user's sensitive and private information. [6] Moreover, many software bugs which cause crashes are also exploitable for arbitrary code execution and other types of privilege escalation.
A rootkit can modify data structures in the Windows kernel using a method known as direct kernel object manipulation (DKOM). [33] This method can be used to hide processes. A kernel mode rootkit can also hook the System Service Descriptor Table (SSDT), or modify the gates between user mode and kernel mode, in order to cloak itself. [4]
In contrast, application programs such as browsers, word processors, or audio or video players use a separate area of memory, user space. This separation prevents user data and kernel data from interfering with each other and causing instability and slowness, [ 1 ] as well as preventing malfunctioning applications from affecting other ...
Users interact with Qubes OS in much the same manner that they interact with any standard graphical desktop operating systems with some key differences: The creation of qubes (security domains) offers the means to create discrete, lean, secure application spaces by linking them to a complete root filesystem using shared templates.
systemd tracks processes using the Linux kernel's cgroups subsystem instead of using process identifiers (PIDs); thus, daemons cannot "escape" systemd, not even by double-forking. systemd not only uses cgroups, but also augments them with systemd-nspawn and machinectl , two utility programs that facilitate the creation and management of Linux ...
As a result, the root window is visible as the part of the screen that is behind all other windows. In other words, the root window forms the background of the screen. An image can be used as the wallpaper of the screen by setting it as the background image of the root window. This can be done for example using the xsetroot or the xv programs.