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wiki/concepts/Security-Group-Policy.md
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title: "Security Group Policy"
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type: concept
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tags: [AWS, Security, Firewall, Policy]
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sources: []
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last_updated: 2026-04-19
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---
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## Summary
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Security Group Policy 是 Firewall Manager 中用于管理跨账户安全组规则的策略类型。
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## Definition
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在 Firewall Manager 环境中,Security Group Policy 定义了安全组的创建、更新和清理规则,支持三种类型:
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## Policy Types
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### 1. Common Security Group(通用安全组)
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- 附加基线安全组到资源
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- 允许产品团队添加额外规则
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- 确保所有账户拥有基础安全保护
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### 2. Audit and Enforcement(审计与强制)
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- 检测并拒绝过度宽松的规则
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- 支持手动修复或自动修复
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- 提供合规性仪表板视图
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### 3. Unused Security Group Cleanup(清理未使用)
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- 识别和删除冗余安全组
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- 简化安全管理
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- 减少攻击面
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## Key Features
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- 支持 AWS Organizations 组织单位(OU)级别应用
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- 通过 Prefix List 共享规则
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- 使用 RAM 实现跨账号资源共享
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## Related Concepts
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- [[Security Group]]
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- [[AWS Firewall Manager]]
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