Symantec 10521146 Administration Guide - Page 341

Glossary 341 bps (bits per second) A measure of the speed at which a device such as a modem can transfer bits of data. Bridge An application that retrieves events from non-SESA, native Symantec products and places them in the SESA DataStore. broadcast To simultaneously send the same message to all users on a network. BTO server A build-to-order server is a PC or laptop running Red Hat Linux, configured as a DHCP server, TFTP server, and NFS server. It uses the Red Hat kickstart mechanism to load a Symantec Network Security 7100 Series appliance with initial software. buffer overflow attack An attack that works by exploiting a known bug in one of the applications running on a server. This then causes the application to overlay system areas, such as the system stack, thus allowing the attacker to gain administrative rights. In most cases, this gives the attacker complete control over the system. Also called stack overflow. bypass unit A device that provides the ability to transparently detour network traffic around a malfunctioning Ethernet network appliance. cable A group of wires that are enclosed in a protective tube. Usually this is an organized set of wires that correspond to specific pins on a 9- or 25-pin connector located at each end. A cable is used to connect peripheral devices to each other or to another computer. In remote computing, this can refer to a cable that is used to connect a computer to a modem, or a cable that connects two computers directly, that is sometimes called a null modem cable. cache file A file that is used to improve the performance of Microsoft Windows. The cache file is established on the remote computer and is used to hold Windows bitmap data. If the bitmap data is in the cache file when a Windows screen is redrawn, the data does not have to be resent, that results in better performance. capability The measure of a threat's technical expertise or knowledge of a system's connectivity. CD start A screen that is usually the first thing a customer will see after inserting the Symantec product CD. certificate A file that is used by cryptographic systems as proof of identity. It contains a user's name and public key. Certificate A type of Secure Sockets Layer (SSL) that provides authentication and data encryption Authority-signed SSL through a certificate that is digitally signed by a Certificate Authority. CGI (Common Gateway Interface) exploit A denial of service attack that is aimed at the Common Gateway Interface (CGI). CGI is a standard way for a Web server to pass a Web user's request to an application program and to receive data back to forward to the user. It is part of the Web's Hypertext Transfer Protocol (HTTP). channel A communication medium for transferring information. Also called a line or circuit. Depending on its type, a communications channel can carry information in analog or digital form. A communications channel can be a physical link, such as a cable that connects two stations in a network, or it can consist of some electromagnetic transmission.