Apple Mac OS X Server Version 10.4 or Later Manual de usuario descargar pdf (Pagina 108)

108 Glossary

public key cryptography A method of encrypting data that uses a pair of keys, one

public and the other private, that are obtained from a certification authority. One key is

used to encrypt messages, and the other key to decrypt them.

public key infrastructure A secure method of exchanging data over an unsecure

public network, such as the Internet, by using public key cryptography.

queue An orderly waiting area where items wait for some type of attention from the

system. See also print queue.

RBL Real-time black-hole list. An Internet service that blacklists mail servers known to

be or suspected of being open relays for senders of junk mail.

real-time black-hole list See RBL.

record type A specific category of records, such as users, computers, and mounts. For

each record type, a directory domain may contain any number of records.

relay In QuickTime Streaming Server, a relay receives an incoming stream and then

forwards that stream to one or more streaming servers. Relays can reduce Internet

bandwidth consumption and are useful for broadcasts with numerous viewers in

different locations. In Internet mail terms, a relay is a mail SMTP server that sends

incoming mail to another SMTP server, but not to its final destination.

relay point See open relay.

round robin An Xsan storage pool allocation strategy. In a volume consisting of more

than one storage pool, Xsan allocates space for successive writes to each available pool

in turn.

Secure Sockets Layer See SSL.

short name An abbreviated name for a user. The short name is used by Mac OS X for

home directories, authentication, and email addresses.

Simple Mail Transfer Protocol See SMTP.

SMTP Simple Mail Transfer Protocol. A protocol used to send and transfer mail. Its

ability to queue incoming messages is limited, so SMTP usually is used only to send

mail, and POP or IMAP is used to receive mail.

spam Unsolicited email; junk mail.

SSL Secure Sockets Layer. An Internet protocol that allows you to send encrypted,

authenticated information across the Internet. More recent versions of SSL are known

as TLS (Transport Level Security).

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Apple Mac OS X Server Version 10.4 or Later Manual de usuario Pagina 108