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Our Network Security Consultant Ixpert, Cemal Taner, shares his experiences related to NAC.
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NAC (Network Access Control) is a network security solution. NAC controls access to an organization's network and allows only devices and users that comply with specified security policies to enter the network. These systems evaluate devices connecting to the network, check their security status, and grant or deny network access based on necessary permissions.
Benefits of NAC:
Secure Access Control: NAC authenticates devices and users trying to connect to the network, ensuring that only authorized users and secure devices can access the network.
Device and User Visibility: It makes all devices and users connected to the network visible, allowing organizations to track who and what devices are connected to the network.
Policy Enforcement: Automatically enforces user and device security policies, ensuring that devices are protected with up-to-date software, antivirus, and security patches.
Threat Prevention: Identifies weak or compromised devices, allowing for early intervention against potential attacks.
Compliance Management: Supports compliance processes by regulating network access controls for organizations with compliance requirements such as ISO 27001 and PCI DSS.
Guest Access Management: Provides isolated network access for guest users, preventing direct access to company resources.
Features to Consider When Choosing NAC:
Compliance and Integration: It is important to check whether the chosen NAC solution is compatible with the existing network infrastructure. Additionally, NAC should be able to integrate with existing firewalls, IDS/IPS, and other security tools.
Device and User Identification Capability: It is essential for NAC to accurately recognize and authenticate devices and users connecting to the network.
Policy Flexibility: Choose a NAC solution that supports customizable security policies based on different users, device types, and conditions.
Threat Intelligence Integration: Verify whether the NAC is integrated with threat intelligence to allow for rapid response to security incidents.
Ease of Management and Monitoring: Solutions that offer a user-friendly interface and centralized management provide less complexity and greater traceability.
Guest Access Management: It should offer easily manageable access policies and isolation capabilities for temporary or guest users.
Scalability: It should be able to expand to accommodate a growing network environment, providing long-term cost-effectiveness.
NAC provides flexible and effective access control while ensuring security measures and network visibility.