port scan
See port scanning.
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- Port Scanning
The act of systematically scanning a computer’s ports. Since a port is a place where information goes into and out of a computer, port scanning identifies open doors to a computer. Port scanning has legitimate uses in managing networks, but port scanning also can be malicious in nature if someone is looking for a weakened […]
- port triggering
A type of port forwarding where outbound traffic on predetermined ports sends inbound traffic to specific incoming ports. Port triggering “triggers” an open incoming port when a client on the local network makes an outgoing connection to a predetermined port on a server. Port Triggering is more secure than port forwarding, because the incoming ports […]
- portable
(adj.) (1) When used to describe hardware, portable means small and lightweight. A portable computer is a computer small enough to carry. Portable computers include notebook and subnotebook computers, hand-held computers, palmtops, and PDAs . (2) When used to describe software, portable means that the software has the ability to run on a variety of […]
- portable image storage device
A small, portable storage device used for storing and viewing your digital images. The device is a portable hard drive in an enclosure that resembles handheld game consoles. The device usually offers USB and memory card readers as options for transferring your images directly to the device, as well as an LCD display for viewing […]
- Portal
(1) A Web portal or public portal refers to a Web site or service that offers a broad array of resources and services, such as e-mail, forums, search engines, and online shopping malls. The first Web portals were online services, such as AOL, that provided access to the Web, but by now most of the […]