Physics for Kids. 1  Work is a scalar quantity, not a vector quantity. This means that, unlike force and velocity, it has no direction, only a magnitude. 2  Another unit of work is the foot-pound. One foot-pound is equal to 1.35581795 joules. 3  The joule is also used as the standard unit of measure for energy.
IP spoofing (IP address forgery or a host file hijack) IP spoofing, also known as IP address forgery or a host file hijack, is a hijacking technique in which a cracker masquerades as a trusted host to conceal his identity, spoof a Web site, hijack browsers, or gain access to a network.
There is no guarantee that the victim and attacker will access the network at the same time, so stored profile information (i.e., the machine was a Windows device) must be compared to new information that may be gathered (this MAC address is now a linux device). Preventing MAC spoofing. In order to take action on the detection of MAC spoofing, the solution also needs to be able to restrict access. The ability to shut down access to the impersonating device (attacker), preferably without shutting down access to the victim device, is a critical part of the solution. Using CGX to detect and prevent MAC spoofing.