SAC

The service access controller (SAC) represents the administrative point of control for port monitors.

SBus

The SUN SBus is a proprietary bus system used in most Sun systems.

SCSI

Small computer systems interface (SCSI) is a high-speed interface that can connect to a computer devices such as hard drives, CD-ROM drives, floppy drives, tape drives, scanners, and printers. SCSI is one of the most common types of interface for modern day computer systems.

Secondary Group

Users can belong to up to 15 secondary groups. Users must be added to a secondary group's member list in the /etc/group file to belong to the group.

Serial Port

A serial port is used to transfer data one bit at a time. It is usually an RS-232, but 25-pin connector and 9-pin connectors are also used.

Server

Strictly speaking, a server is a process that communicates to a client process. Commonly, the term server is used to refer to a host that provides resources to one or more clients. A server is connected to the clients it serves through a network.

Service

A process which provides a service such as remote file access, remote login capability, or electronic mail transfer is called a service.

share

The share command makes resources available for mounting to remote systems.

Shell

The shell is an interface between the user and the kernel. It acts as an interpreter or translator. The shell accepts commands issued by the user, interprets what the user types, and requests execution of the programs specified. Execution is performed by the kernel.

shutdown

The shutdown command is executed by superuser to change the state of a machine. In most cases, it is used to change from the multiuser state (state 3) to another state.

By default, shutdown brings the system to single-user state (a state where only the console has access to the operating system). The command sends a warning message and a final message before it starts shutdown activities.

By default, the command asks for confirmation before it starts shutting down daemons and killing processes.

Slice

A slice is a logical subdivision of a physical disk drive, and it is treated as an individual device.

SNMP

Simple Network Management Protocol (SNMP) is the network management of choice for TCP/IP-based internets.

Socket

he combination of an IP address and a port number is called a socket. A socket uniquely identifies a single network process within the entire Internet. Sometimes the terms "socket" and "port number" are used interchangeably. A pair of sockets, one for the sending host, and one for the receiving host, define the connection for connection-oriented protocols such as TCP.

Soft Link

A link is a mechanism that allows several filenames to refer to a single file on disk. Symbolic (soft) links are pointer files that name another file elsewhere in the file system. Symbolic links may span physical devices since they point to a UNIX pathname and not to an actual disk location. The other type of link is a hard link .

Software

Strictly speaking, software consists of variable executable instructions which may be read from tape, CD-ROM, hard disk, diskette, or other media. In general use, software refers to system programs and application programs which are available on a system.

Software Cluster

A software cluster is a logical grouping of software packages that are used to make installation easier. The cluster names used during installation refer to the logical names (such as on-line man pages) and do not use the SUNW prefix.

Solstice Adminsuite

Solstice Adminsuite is a graphical tool for administring file systems and disks.

Solstice DiskSuite

Solstice DiskSuite is software that uses virtual disks to manage physical disks and their associated data.

Spool

To spool items is to place items in a queue, each waiting its turn for some action.

spray

The spray command sends a one-way stream of packets to the host by using remote procedure calls (RPC), and reports how many were received, as well as the transfer rate. The host argument can be either a name or an Internet address.

SQEC

The SBus Quad Ethernet Controller (SQEC) card is an add-on option providing four fully buffered twisted-pair Ethernet ports (RJ45) on a single-wide SBus card.

State Database Replica

State database replicas are databases that hold information about the attached disk drives and their configurations. These are normally replicated across drives to avoid a single point of failure.

 

STIME

STIME is the start time of a process as obtained from the ps command.

Stream

A stream is a channel used to transfer data to and from a device such as a disk, a keyboard, or a printer.

STREAMS Framework

The STREAMS framework is a kernel mechanism that supports development of network services and data communications drivers. STREAMS defines interface standards for character input/output within the kernel, and between the kernel and user level. The STREAMS mechanism comprises integral functions, utility routines, kernel facilities, and a set of structures.

String

A string is a connected sequence of characters treated as a single data item.

Stripe

Disk striping is a feature that alternates writing equally sized segments of data across two or more slices, forming one logical storage unit.

Subdirectory

A subdirectory is any directory below another directory. For example, the /usr directory is a subdirectory of the root (/) directory.

Submirror

A submirror is made up of one or more striped or concatenated metadevices.

Subnetwork

A subnetwork is a portion of a larger network that is used to identify a group of systems.

Superuser

The superuser (also known as root) is a privileged user with total system access. Only the superuser, for example, can change the password file and edit major system administration files in the /etc directory. The user name for this account is root. The terms superuser and root have the same meaning and are used interchangeably.


SVID

The SVID (System V Interface Definition) consists of the commands (lp, lpstat, and so on), the spooling daemon lpsched, and administrative commands (accept, reject, and so on).

Swap Space

Swap space is a reserved part of the disk for the kernel to use during processing. Swap space is an extension of memory.

Symbolic Link

A symbolic link is a file which contains a path name that points to another file.

Symbolic Notation

Symbolic notation is a method of changing file permissions using symbols instead of octal digits.
r == 100 == 4
w == 010 == 2
x == 001 == 1
Read, write, and execute permission is rwx in symbolic notation or 7 in octal notation.

System Profile

A system profile is a file that is executed when any user logs in to the system /etc/profile.

System V

System V is a version of the UNIX operating system developed by AT&T. The Solaris 2.x environment is based on the System V Release 4 version of the UNIX operating system.