file system A consistent method by which information is organized and stored on physical media. Different operating systems typically have different file systems. File systems are often a tree-structured network of files and directories, with a root directory at the top and parent and child directories below the root.

File Transfer Protocol

(FTP) A basic Internet protocol based on Transmission Control Protocol/Internet Protocol (TCP/IP) that enables the retrieving and storing of files between systems on the Internet without regard to the operating systems or architectures of the systems involved in the file transfer.

firewall A network configuration, usually both hardware and software, that protects networked computers within an organization from outside access. A firewall can monitor or prohibit connections to and from specified services or hosts.

firmware Software that is typically used to help with the initial booting stage of a system and with system management. Firmware is embedded in read-only memory (ROM) or programmable ROM (PROM).

flash PROM Programmable read-only memory (PROM) that can be reprogrammed while installed within the system, from software on a disc, by a voltage pulse, or flash of light.

fully qualified domain

name (FQDN) The complete and unique Internet name of a system, such as “www.sun.com.” The FQDN includes a host server name (www) and its top-level (.com) and second-level (.sun) domain names. A FQDN can be mapped to a system’s Internet Protocol (IP) address.

G

gateway A computer or program that interconnects two networks and then passes data packets between the networks. A gateway has more than one network interface.

Gigabit Ethernet Ethernet technology that transfers data up to 1000 Mbit/sec.

Grand Unified

Bootloader (GRUB) A boot loader that can install two or more operating systems (OS) onto a single system and that can manage which OS to boot at power-on.

graphical user interface

(GUI) An interface that uses graphics, along with keyboard and mouse, to provide easy-to-use access to an application.

116 Sun Fire X4150 Server Embedded Lights Out Manager Administration Guide • September 2007

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Sun Microsystems X4150 manual File Transfer Protocol, Fully qualified domain, Grand Unified, Graphical user interface