Network security encompasses the policies, practices, and tools designed to prevent unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. This definitive guide provides practical checklists to help you assess and strengthen your security posture.
Checklist 1: Perimeter Security
- Deploy and properly configure a perimeter firewall
- Implement DMZ for public-facing services
- Enable logging on all perimeter devices
- Regularly audit firewall rules
Checklist 2: Intrusion Detection and Prevention
- Deploy network-based IDS/IPS
- Keep signatures up to date
- Establish tuning and alert management processes
- Integrate with SIEM for correlation
Checklist 3: Access Control
- Implement least-privilege access
- Use multi-factor authentication for remote access
- Regularly review and revoke unnecessary access
- Deploy network access control (NAC) solutions