Organisational landscapes have undergone major changes in the last two decades. In today’s digital landscape, cyber threats and data breaches are more prevalent. So, every company needs a secure network. A well-structured network ensures that their data stays confidential. To create a secured network, you need to consider various aspects of network design. You also need to implement security measures in multiple layers. Hence, in this blog, we will discuss the steps to design a secured network in simple terms –
1. Define Your Security Objectives
The first step is to understand the specific security needs of your organisation. Once you have understood that, follow these steps –
· Identify the data, systems, and services that require protection.
· Consider compliance requirements and potential threats.
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2. Network Segmentation
Divide your network into segments or zones. This isolates sensitive data and systems from less secure areas, limiting the potential damage in case of a breach. Common segments include a Demilitarised Zone, guest networks, and internal networks. Professional assignment writers for do my assignment for me can explain this in greater detail.
3. Firewalls and Access Control
Implement firewalls to control traffic between network segments. Configure access control lists to permit or deny traffic based on predefined rules. Use stateful firewalls to track the state of active connections.
4. Intrusion Detection and Prevention Systems
Deploy IDPS to monitor network traffic for suspicious activity. These systems can detect and respond to any potential threats in real time.
5. Virtual Private Networks
Use VPNs to encrypt data in transit, ensuring secure communication between remote locations, employees, or partners. Implement strong authentication mechanisms for VPN access.
6. Network Security Protocols
Employ secure protocols, like HTTPS, SSH, and IPsec, to protect data in transit. Avoid outdated and vulnerable protocols, such as HTTP and Telnet.
7. Network Access Control (NAC)
Implement NAC solutions to authenticate and authorize devices before granting access to the network. This helps prevent unauthorized devices from connecting.
8. User Authentication and Authorisation
Utilize strong authentication methods like multi-factor authentication (MFA) to verify user identities. Implement role-based access control (RBAC) to restrict user privileges based on their job roles.
9. Patch Management
Regularly update and patch network devices, servers, and software to address known vulnerabilities. Attackers can exploit vulnerabilities in unpatched systems.
10. Security Monitoring and Logging
Set up monitoring systems to detect anomalies and unauthorized access. Store and review logs regularly to identify security incidents. Consider using SIEM solutions for centralized log management.
Encrypt data at rest, especially on storage devices and databases, to protect it from theft. Use strong encryption algorithms and manage encryption keys securely.
12. Wireless Network Security
Secure your Wi-Fi networks with strong encryption (WPA3), unique and complex passwords, and network segmentation. Implement guest networks with limited access to your main network.
13. Physical Security
Secure physical access to network equipment and data centers. Use biometric authentication, card access systems, and surveillance cameras to protect critical infrastructure.
14. Redundancy and Disaster Recovery
Design your network with redundancy to ensure high availability. Implement disaster recovery plans and offsite backups to recover from catastrophic events.
15. Vendor and Third-Party Security
Assess the security practices of your network equipment vendors and third-party service providers. Ensure they follow best security practices and comply with your security policies.
16. Security Policies and Training
Develop security policies and use them to govern network usage. To maintain a secure network, you should provide regular training to the employees.
17. Incident Response Plan
Develop an incident response plan that outlines the steps to follow in case of a security breach. Test this plan periodically to ensure it’s effective.
18. Penetration Testing and Vulnerability Scanning
Regularly test your network’s security with penetration tests and vulnerability scans. These assessments help identify weaknesses and allow for timely remediation.
19. Regulatory Compliance
Ensure your network design aligns with relevant regulations, such as GDPR, HIPAA, or industry-specific requirements. Compliance helps avoid legal and financial repercussions.
20. Security Audits and Assessments
Conduct periodic security audits and assessments to evaluate the effectiveness of your security measures and identify areas for improvement.
21. Documentation and Change Control
Maintain comprehensive documentation of your network’s design, configurations, and security policies. Implement change control processes to ensure that network changes are made in a controlled and secure manner.
Designing a secure network requires a holistic approach. It is an ongoing process, and the system needs to adapt to evolving threats and technologies. By following these steps, you can stay informed about the latest security trends. Thus, you can create a robust network that safeguards your organisation from any data breach.