Network access control (NAC) aims to unify endpoint security, system authentication, and security enforcement in a more intelligent network access solution than simple firewalls. NAC ensures that every workstation accessing the network conforms to a security policy and can take remedial actions on workstations if necessary. For example, NACs can check if a workstation has antivirus software installed and, if not, NAC will limit the workstation's access to the network. Have you been using network access control (NAC) to secure the workstations on your network? Find out about the capabilities and performance of a free open source NAC application called PacketFence in this informative article.

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