Seccomp filtering provides a means for a process to specify a filter for incoming system calls.It is not allowed to open any other files. The default sandbox domain only allows applications the ability to read and write stdin, stdout and any other file descriptors handed to it. Runs the given cmd application within a tightly confined SELinux domain.This page provides pointers to information on the various namespace types, describes the associated /proc files, and summarizes the APIs for working with namespaces. One use of namespaces is to implement containers. Changes to the global resource are visible to other processes that are members of the namespace, but are invisible to other processes. A namespace wraps a global system resource in an abstraction that makes it appear to the processes within the namespace that they have their own isolated instance of the global resource.namespaces - overview of Linux namespaces(manpage).From 30 to 230 docker containers per host.Architecting Containers Part 1: Why Understanding User Space vs.Linux LXC vs FreeBSD jail - Are there any notable differences between LXC (Linux containers) and FreeBSD's jails in terms of security, stability & performance? - unix.StackExchange.
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The book is now out of print and the copyright belongs to the author, who makes the material available here for viewing or downloading, in Adobe Acrobat PDF format (free Acrobat reader available here).
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It is still the most thorough survey and description of early capability-based and object-based hardware and software systems. This book was published by Digital Press in 1984.Capability-Based Computer Systems - Henry M.A Brief History of Containers: From the 1970s Till Now - Rani Osnat.Docker Internals: A Deep Dive Into Docker For Engineers Interested In The Gritty Details - Docker Saigon.Everything you need to know about Jails.