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Glossary 291
FTP File Transfer Protocol. A protocol that allows computers to transfer files over a
network. FTP clients using any operating system that supports FTP can connect to a file
server and download files, depending on their access privileges. Most Internet browsers
and a number of freeware applications can be used to access an FTP server.
full name See long name.
group A collection of users who have similar needs. Groups simplify the administration
of shared resources.
group folder A folder that organizes documents and applications of special interest to
group members and allows group members to pass information back and forth among
themselves.
guest computer An unknown computer that isn’t included in a computer list on your
server.
guest user A user who can log in to your server without a user name or password.
home folder A folder for a user’s personal use. Mac OS X also uses the home folder,
for example, to store system preferences and managed user settings for Mac OS X
users.
HTML Hypertext Markup Language. The set of symbols or codes inserted in a file to be
displayed on a World Wide Web browser page. The markup tells the web browser how
to display a webpage’s words and images for the user.
HTTP Hypertext Transfer Protocol. The client/server protocol for the World Wide Web.
The HTTP protocol provides a way for a web browser to access a web server and
request hypermedia documents created using HTML.
ICMP Internet Control Message Protocol. A message control and error-reporting
protocol used between host servers and gateways. For example, some Internet
software applications use ICMP to send a packet on a round trip between two hosts to
determine round-trip times and discover problems on the network.
idle user A user who is connected to the server but hasn’t used the server volume for a
period of time.
IMAP Internet Message Access Protocol. A client-server mail protocol that allows users
to store their mail on the mail server rather than download it to the local computer.
Mail remains on the server until the user deletes it.
IP Internet Protocol. Also known as IPv4. A method used with Transmission Control
Protocol (TCP) to send data between computers over a local network or the Internet.
IP delivers packets of data, while TCP keeps track of data packets.