October 2017
Intermediate to advanced
354 pages
9h 28m
English
Content preview from Mastering Linux Kernel Development
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Namespaces and cgroups
Users logged into a Linux system have a transparent view of various system entities such as global resources, processes, kernel, and users. For instance, a valid user can access PIDs of all running processes on the system (irrespective of the user to which they belong). Users can observe the presence of other users on the system, and they can run commands to view the state of global system global resources such as memory, filesystem mounts, and devices. Such operations are not deemed as intrusions or considered security breaches, as it is always guaranteed that one user/process can never intrude into other user/process.
However, such transparency is unwarranted on a few server platforms. For instance, consider cloud ...
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