network-security
Cloud-native network protection, zero-trust architecture, and AWS VPC security
ソース情報
- リポジトリ
- Hack23/homepage
- ソースの最終更新活動
- 2026年2月10日 16:25
- 検出された SKILL.md の言語
- 英語
- スター
- 12
- フォーク
- 5
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SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- Network Security
- description
- Cloud-native network protection, zero-trust architecture, and AWS VPC security
- license
- Apache-2.0
- version
- 1.0
- author
- Hack23 AB
- tags
- ["network-security","zero-trust","aws-vpc"]
- category
- security
- frameworks
- ["ISO 27001:2022","NIST CSF 2.0","CIS Controls v8.1"]
- related_policies
- ["Network_Security_Policy.md"]
# 🌐 Network Security Skill
## 🎯 Purpose
Enforce cloud-native network security with zero-trust architecture, based on [Network Security Policy](https://github.com/Hack23/ISMS-PUBLIC/blob/main/Network_Security_Policy.md).
**Key Principle:** *"The perimeter is dead. Long live zero-trust."*
## 📚 Scope
- ☁️ Cloud-Native Protection (AWS-native services)
- 🔐 Zero-Trust Architecture (never trust, always verify)
- 🛡️ Network Segmentation (VPC isolation, security groups)
- 🔑 VPN Requirements (secure remote access)
- 🔥 Firewall Rules (AWS WAF, security groups, NACLs)
## ⚙️ Security Rules
### MUST Requirements
```yaml
aws_vpc_architecture:
network_design:
multi_tier: [public_subnets, private_subnets, isolated_subnets]
availability_zones: minimum_2_for_ha
security_groups: default_deny_least_privilege
nacls: additional_subnet_protection
zero_trust_controls:
identity: iam_roles_with_mfa
segmentation: micro_segmentation_per_workload
encryption: tls_1_3_preferred_vpn_for_admin
monitoring: cloudtrail_guardduty_flowlogs
aws_waf:
managed_rules: [owasp_top_10, known_bad_inputs, ip_reputation]
custom_rules: [rate_limiting, geo_blocking]
logging: s3_with_90_day_retention
```
### MUST NOT Prohibitions
```yaml
prohibited:
- public_databases: rds_in_public_subnets
- unrestricted_sg: 0.0.0.0/0_for_admin_ports
- default_vpc: production_in_default_vpc
- disabled_monitoring: no_cloudtrail_or_flow_logs
```
## 💡 Example: Three-Tier VPC
```yaml
vpc_deployment:
public_subnets: [alb, nat_gateway]
private_subnets: [ec2_app_servers, lambda]
isolated_subnets: [rds_database]
security_groups:
alb_sg:
inbound: [443_from_0.0.0.0/0, 80_redirect]
outbound: [8080_to_app_sg]
app_sg:
inbound: [8080_from_alb_sg, 22_from_bastion]
outbound: [5432_to_db_sg, 443_external_apis]
db_sg:
inbound: [5432_from_app_sg_only]
outbound: deny_all
monitoring:
vpc_flow_logs: enabled
guardduty: active
cloudwatch_alarms: configured
```
## 🔗 Integration
**Policies:** [Network Security](https://github.com/Hack23/ISMS-PUBLIC/blob/main/Network_Security_Policy.md), [Information Security](https://github.com/Hack23/ISMS-PUBLIC/blob/main/Information_Security_Policy.md)
**Frameworks:** ISO 27001 A.8.20-23, NIST CSF PR.AC-05, CIS Control 12
## 📋 Document Control
- **Version:** 1.0 | **Updated:** 2026-02-10
- **License:** Apache-2.0
- **Classification:** [](https://github.com/Hack23/ISMS-PUBLIC/blob/main/CLASSIFICATION.md)
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