packet filtering
Also referred to as static packet filtering. Controlling access to a network by analyzing the incoming and outgoing packets and letting them pass or halting them based on the IP addresses of the source and destination. Packet filtering is one technique, among many, for implementing security firewalls.
Compare with stateful inspection.
Read Also:
- Packet Switching
Refers to protocols in which messages are divided into packets before they are sent. Each packet is then transmitted individually and can even follow different routes to its destination. Once all the packets forming a message arrive at the destination, they are recompiled into the original message. Most modern Wide Area Network (WAN) protocols, including […]
- pad character
A character used to fill empty space. Many applications have fields that must be a particular length. For example, in a database application, you may have a field that is ten characters in length. If you use only four of the allotted characters, the program itself must fill in the remaining six characters with pad […]
- pad-printed keycap
(pad print´&d kē´kap) (n.) A keycap on a keyboard that has had its legend printed in ink and is subsequently protected with a protective layer that typically is baked onto the keyboard. The legends on pad-printed keyboards typically are printed all at one time onto a fully manufactured keyboard. Pad printing is a common method […]
- padding
Filling in unused space.
- PPCP
Short for PowerPC Platform, a computer hardware specification that allows a computer to run multiple operating systems. PPCP was developed jointly by Apple, IBM, and Motorola and was first called the Common Hardware Reference Platform (CHRP). The specification is based on the RISC architecture used for the RS/6000 mini-computer. A computer that meets the PPCP […]