How to Use Linux Namespaces for Container Security

Lucas and Luna dive into Linux namespaces, the kernel feature that underpins container isolation but is often misunderstood. They explain the seven namespace types, show how a misconfigured namespace can leak host resources, and walk through a practical example using 'unshare' to create a minimal container. The hosts also discuss auditing namespace configurations with 'lsns' and 'nsenter', and why namespaces alone aren't enough without cgroups and seccomp. A must-listen for sysadmins who want to understand container security from the kernel up.

#Linux #Namespaces #ContainerSecurity #Sysadmin #Kernel #Docker #unshare #nsenter #lsns #cgroups #seccomp #Isolation #ServerEngineering #Technology #FexingoBusiness #BusinessPodcast #LinuxServerAdmin #Bash

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