FDDI (Fiber Distributed Data Interface) An emerging standard for network technology based on fiber optics that has been established by ANSI. FDDI specifies a 100-million bit per second data rate. The access control mechanism uses token ring technology.
flame A piece of mail or a Usenet posting which is violently argumentative.
FQDN (Fully Qualified Domain Name) The FQDN is the full site name of a system, rather than just its hostname. For example, the system lisa at Widener University has a FQDN of lisa.cs.widener.edu.
FTP (File Transfer Protocol) The Internet standard high-level protocol for transferring files from one computer to another.
FYI An abbreviation for the phrase "for your information." There is also a series of RFCs put out by the Network Information Center called FYIs; they address common questions of new users and many other useful things. RFCs for instructions on retrieving FYIs.
gateway A special-purpose dedicated computer that attaches to two or more networks and routes packets from one network to the other. In particular, an Internet gateway routes IP datagrams among the networks it connects. Gateways route packets to other gateways until they can be delivered to the final destination directly across one physical network.
header The portion of a packet, preceding the actual data, containing source and destination addresses and error-checking fields. Also part of a message or news article.
hostname The name given to a machine. (See also FQDN.)
IMHO (In My Humble Opinion) This usually accompanies a statement that may bring about personal offense or strong disagreement.
Internet A concatenation of many individual TCP/IP campus, state, regional, and national networks (such as NSFnet, ARPAnet, and Milnet) into one single logical network all sharing a common addressing scheme.