Linux chroot Sandbox and Isolation Mechanisms In Linux system administration and development, the chroot (Change Root) sandbox and isolation mechanisms are the foundation for building secure and stable environments. chroot originated in the Unix era to restrict process access to the file system, while modern isolation mechanisms such as namespace, cgroups, and seccomp further extend … Read more
Control Groups (cgroups) are a feature of the Linux kernel used to limit, record, and isolate the resource usage (CPU, memory, disk I/O, network, etc.) of process groups. cgroup v2 is the second generation implementation of cgroups, providing a more unified and consistent interface. 1. Core Concepts of cgroup v2 Hierarchy v2 adopts a single … Read more
0. Introduction In previous articles, we introduced knowledge and practical cases related to processes. However, in the world of process management, merely understanding process creation and scheduling is insufficient. As applications transition from single-machine environments to containerization and from local usage to cloud deployment, the failure of resource isolation can lead to service anomalies or, … Read more