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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.
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