Unverified50% confidenceFactExact time

User Namespace was introduced starting from the Linux 3.8 kernel, allowing UID and GID to be mapped to different values within the namespace.

1

Sources

50%

Confidence

Long-term

Relevance

9/11/2026

First Seen

Sources

Rootless Containers Explained: Principles, Benefits, and Leading Implementation Approaches

Related Entities

User Namespacetechnology Linuxtechnology

Related Claims

UnverifiedLinux Namespace has been gradually introduced into the kernel since 2002 and currently has 8 types, including PID, Net, Mount, UTS, IPC, User, and Cgroup.68% similar VerifiedLinux namespaces technology was first introduced in 2002 with kernel version 2.4.19, forming an isolation system encompassing seven types of namespaces: Mount, PID, Network, IPC, UTS, User, and Cgroup.68% similar UnverifiedLinux Namespace 自 2002 年起逐步引入内核，目前共有 8 种类型62% similar Unverified在所有平台上简单使用 ~/.appname 模式会在 Linux 上违反 XDG 规范54% similar

Cite This Claim

Stable URI

https://kongchang.com/claim/893072

API

curl https://kongchang.com/api/v1/knowledge/claims/893072

MCP

get_claim(id=893072)