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---
title: "Federated User"
type: concept
tags:
- aws
- security
- identity
sources: [ctp-topic-1-gruntwork-landing-zone-architecture]
last_updated: 2026-04-18
---
## Summary
通过 AD 组映射到 IAM 角色的联邦身份访问机制,替代传统 IAM 用户实现安全账户管理。
## Definition
Federated User联邦用户是基于身份提供商IdP的访问方式用户通过企业 Active DirectoryAD进行身份验证然后通过 SAML 或 OIDC 映射到 AWS IAM 角色获取访问权限。
## Advantages
- **集中管理**:用户凭据由企业 AD 集中管理,无需在 AWS 中单独创建 IAM 用户
- **自动生命周期**:员工离职后自动失去 AWS 访问权限
- **最小权限原则**:通过 AD 组精确控制用户获得的 IAM 角色和权限
- **审计合规**:所有访问通过企业身份系统记录和审计
## Connections
- [[IAM]] ← accepts ← [[Federated-User]]
- [[Active-Directory]] ← authenticates ← [[Federated-User]]
- [[Gruntwork-Landing-Zone]] ← uses ← [[Federated-User]]