N

National Institute of Standards & Technology (NIST)

An agency within the U.S. Department of Commerce responsible for developing measurement standards, including standards for cyber security best practices, monitoring, and validation.

network access control (NAC)

NAC offers a method of enforcement that helps ensure computers are properly configured. The premise behind NAC is to secure the environment by examining the user’s machine and, based on the results, grant access accordingly.

Network Address Translation (NAT)

TCP/IP protocol technology that maps internal IP addresses to one or more external IP addresses through a NAT server of some type. NAT enables the conservation of public IP address space by mapping private IP addresses used in an internal LAN to one or more external public IP addresses to communicate with the external world. NAT also provides address-hiding services thus adding both security and simplicity to network addressing.