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Internals · easy

1. Linux Namespaces & Cgroups

How containers actually work under the hood.

1 min read2 questionsup to 50 XPtopic 1/5

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Containers are not virtual machines; they are standard Linux processes isolated by kernel Namespaces (PID, NET, MNT, IPC, UTS, USER) and resource-bounded by Control Groups (cgroups) for CPU, memory, and I/O throttling.

How to study this topic

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  2. 2. Re-read the code snippets and say out loud what each line does.
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  4. 4. Read every explanation, even for the answers you got right.

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Check your understanding

  1. 1. Which Linux kernel feature restricts how much CPU and RAM a container process can consume?

  2. 2. Which Linux namespace isolates network interfaces and IP routing tables?

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