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Plant Security
Published in Frank R. Spellman, Fundamentals of Public Utilities Management, 2020
A firewall is an electronic barrier designed to keep computer hackers, intruders, or insiders from accessing specific data files and information on a utility’s computer network or other electronic/computer systems. Firewalls operate by evaluating and then filtering information coming through a public network (such as the Internet) into the utility’s computer or other electronic system. This evaluation can include identifying the source or destination addresses and ports, and allowing or denying access based on this identification. Two methods are used by firewalls to limit access to the utility’s computers or other electronic systems from the public network: The firewall may deny all traffic unless it meets certain criteria.The firewall may allow all traffic through unless it meets certain criteria.
Plant Security
Published in Frank R. Spellman, Handbook of Water and Wastewater Treatment Plant Operations, 2020
A firewall is an electronic barrier designed to keep computer hackers, intruders, or insiders from accessing specific data files and information on a utility’s computer network or other electronic/computer systems. Firewalls operate by evaluating and then filtering information coming through a public network (such as the Internet) into the utility’s computer or other electronic system. This evaluation can include identifying the source or destination addresses and ports, and allowing or denying access based on this identification. Two methods are used by firewalls to limit access to the utility’s computers or other electronic systems from the public network: The firewall may deny all traffic unless it meets certain criteria.The firewall may allow all traffic through unless it meets certain criteria.
Communications
Published in Diego Galar, Uday Kumar, Dammika Seneviratne, Robots, Drones, UAVs and UGVs for Operation and Maintenance, 2020
Diego Galar, Uday Kumar, Dammika Seneviratne
Bandwidth is the capacity of a wired or wireless network communications link to transmit the maximum amount of data from one point to another over a computer network or Internet connection in a given amount of time (usually 1 s). Synonymous with capacity, bandwidth describes the DTR. Bandwidth is not a measure of network speed (a common misconception).
Picture Fuzzy N-Soft Sets and Their Applications in Decision-Making Problems
Published in Fuzzy Information and Engineering, 2021
Ubaid Ur Rehman, Tahir Mahmood
The firewall refers to a security gateway that protects the computer networks from malicious instructions. There are several kinds of firewalls in the market and every firewall has its benefits and disbenefits. Therefore, how to select a beneficial firewall by seeing its effectiveness and precision is a conventional multi-attribute DM (MADM) problem.