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Linux Kernel

The kernel is the privileged core mediating all hardware and resource access — scheduling, memory, filesystems, and the entire network stack. Everything in container networking (namespaces, bridges, iptables, VXLAN) is a kernel feature; Docker only configures it.

jeremy Video

The Linux Kernel as a Hardware Abstraction Layer in Operating Systems

A kernel is the privileged software layer that mediates between hardware and application software, exposing a uniform system-call interface so that programs express intent ("open the tray", "write to…