Files
nexus/wiki/entities/Checkpoint-Firewall.md
2026-04-29 00:02:51 +08:00

49 lines
2.4 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
---
title: "Checkpoint Firewall"
type: entity
tags: ["AWS", "Firewall", "Network-Security", "Checkpoint"]
sources: ["ctp-topic-31-network-segregation-and-secure-access-to-the-new-aws-landing-zones", "ctp-topic-10-aws-landing-zone-lz-data-collection-tagging-related-security"]
last_updated: 2026-04-28
---
## Overview
Checkpoint 是 Micro Focus AWS Landing Zone 网络架构中的核心防火墙设备,部署在 Network Account 中,负责管理所有互联网流量和跨区域网络隔离。
## Role in Landing Zone Architecture
- 集中管理 Landing Zone 与 On-prem 之间的所有网络流量
- 启用 SPIStateful Packet Inspection特性
- 实施 Default Deny 策略:默认阻断所有流量,仅放行业务明确需要的服务和网段
## In CTP Topic 10 (Tagging & Security)
在 [[ctp-topic-10-aws-landing-zone-lz-data-collection-tagging-related-security]] 中Pradeep 演示了 Checkpoint 在 Frankfurt Landing Zone 中的标签驱动策略集:
- **Policy Sets**:基于 AWS 资源标签(而非 IP 地址)的动态防火墙策略
- **Ordered Layers**:按优先级顺序执行多层检查
1. 地理封锁Geo-blocking
2. 类型检查Type
3. 业务单元隔离BU
4. 产品隔离Product
5. 环境隔离Environment
6. 服务器角色Server Role
- **Inline Layers**:基于账号编号的父子规则结构,简化跨账号规则管理
- **Tag-Based Enforcement**Demo 演示了 EC2 实例部署时标签缺失或错误导致流量被防火墙拦截的场景
- **Default Deny + Inter-Product Policy**:默认阻断跨产品线通信,明确允许的通信需配置例外
## In CTP Topic 31
在 [[ctp-topic-31-network-segregation-and-secure-access-to-the-new-aws-landing-zones]] 中:
- Checkpoint 作为网络隔离的执行设备,通过 SPI 阻断内部网络对 AWS 生产网段的直接访问
- Default Deny 策略确保只有经过审批的服务和网络段能进入 Landing Zone
- 与 SSM 安全访问方案共同构成"网络隔离 + 终端访问"的双层安全体系
## Key Properties
| 属性 | 值 |
|------|-----|
| 类型 | Stateful Packet Inspection (SPI) Firewall |
| 部署位置 | Network Account |
| 策略模式 | Default Deny |
| 用途 | 互联网边界 + Landing Zone 隔离 |
## Connections
- [[Network-Segmentation]] — Checkpoint 是网络隔离的核心实施工具
- [[ctp-topic-31-network-segregation-and-secure-access-to-the-new-aws-landing-zones]]