Glossary
Glossary
This glossary defines terms and spells out abbreviations you may encounter while working with online help or the Mac OS X Server Network Services Administration for Version 10.3 or Later manual. References to terms defined elsewhere in the glossary appear in italics.
bit A single piece of information, with a value of either 0 or 1.
broadcast The process of transmitting one copy of a stream over the whole network.
byte Eight bits.
DHCP (Dynamic Host Configuration Protocol) A protocol used to distribute IP addresses to client computers. Each time a client computer starts up, the protocol looks for a DHCP server and then requests an IP address from the DHCP server it finds. The DHCP server checks for an available IP address and sends it to the client computer along with a lease
directory services Services that provide system software and applications with uniform access to directory domains and other sources of information about users and resources.
DNS (Domain Name System) A distributed database that maps IP addresses to domain names. A DNS server, also known as a name server, keeps a list of names and the IP addresses associated with each name.
DoS (denial of service) attack An Internet attack that uses thousands of network pings to prevent the legitimate use of a server.
dynamic IP address An IP address that is assigned for a limited period of time or until the client computer no longer needs the IP address.
filter A “screening” method used to control access to your server. A filter is made up of an IP address and a subnet mask, and sometimes a port number and access type. The IP address and the subnet mask together determine the range of IP addresses to which the filter applies.
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