Recommended Design for a Secure Network Architecture

Naka
2 min readFeb 25, 2023

In this writeup, I will be discussing a new topic focusing on network security and specifically a “recommended” network architecture. Before diving into the details, it’s important to understand what a network diagram is.

A network diagram is a visual representation of a network’s structure, which includes various components such as routers, firewalls, switches, servers, and other network devices. The diagram provides a high-level overview of the network’s design and helps in identifying potential vulnerabilities and threats. A well-designed network architecture is critical for ensuring a secure and reliable network infrastructure.

The network diagram provided in this scenario follows a commonly used architecture that employs multiple layers of security mechanisms to safeguard an organization’s network and data from external threats. The diagram shows that the network architecture incorporates three firewalls, each with a specific function. The first firewall is responsible for filtering and blocking potentially harmful traffic from the internet before it can reach the organization’s internal network. The second firewall is located in the DMZ and monitors and controls traffic to and from the DMZ, which isolates public-facing servers from the internal network. The third firewall helps to control and monitor traffic between the internal network and the servers, and can be configured to block any potentially malicious traffic that may have bypassed the external firewall or the firewall with ADS.

In addition to the firewalls, the network architecture includes switches, honeypots, VLANs, and access points. The switches segregate network traffic between the internal network and the DMZ, and VLANs further segment the network to ensure proper traffic control. The honeypot system lures potential attackers and gathers information about their methods and techniques, while access points provide wireless connectivity while ensuring wireless traffic protection.

It’s crucial to note that while this network security architecture provides multiple layers of security, it is not a one-size-fits-all design. Each organization’s network security requirements are unique, and a comprehensive risk assessment and analysis are necessary to identify potential threats and vulnerabilities and develop a custom network security architecture that best meets an organization’s specific needs and requirements. By following this approach, organizations can effectively protect their network and data from external threats and reduce the risk of a successful cyberattack.

I hope that this information was clear and helpful. Thank you for reading.

Feedback, suggestions and your point of view are always appreciated!

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