Network access control is a critical component of modern network security, enabling organizations to manage and secure user and device access at the perimeter. It involves key functions such as authentication, authorization, and policy enforcement to determine who can access network resources and under what conditions. With flexible deployment models including on-premises, cloud, and hybrid environments, NAC adapts to evolving infrastructure needs. Solutions like Firebox, endpoint security, and cloud-based tools work together to provide visibility, enforce policies, and monitor activity. By implementing strong NAC strategies, organizations can better protect assets, control access, and maintain a secure, well-managed network environment.

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