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RAM
- Random access memory (RAM) is another term for primary memory. It is the main
computer memory.
RARP
- Reverse address resolution protocol is used by diskless workstations for
translating their own Ethernet addresses into their IP addresses.
Raster Image
- Raster images store the display primitives (such as lines, characters, and
solidly shaded or patterned areas ) in terms of their component pixels. This is
sometimes referred to as a bitmap display.
Raw Device
- A raw device receives I/O in
an unformatted character stream. Examples of raw devices
include serial devices and raw partitions.
reject
- The reject command prevents queueing of print requests for the named
destinations. A destination can be either a printer or a class of printers. Run lpstat
-a to find the status of destinations.
Remote Host
- A remote host is a system other than the local one on which the user is
working.
Restoring
- The process of copying files and directories from tape media to disk is
called restoring.
Root
- Root is the user name of the superuser account. The superuser is a privileged
user with total system access. The terms superuser and root have the same
meaning and are used interchangeably.
root Directory
- The root directory is the top of the Solaris directory system. All other
directories are subdirectories of the root (/) directory.
Run Control Scripts
- Run control scripts are scripts that are executed during system
initialization and when changing run levels. Commands executed by the run
control scripts determine which file systems are mounted, which daemon processes
are running, and other environment configuration.
Run Level
- A run level is one of the eight initialization states a system can be running
in. A system can run in only one initialization state at a time. The default run
level for each system is specified in the /etc/inittab file.
Run Level 0
- Run level 0 shuts down the system so that it is safe to turn off the power.
Run Level 2
- Run level 2 is a multiuser mode without remote resources available. All
daemons are running except for remote file sharing daemons.
Run Level 3
- Run level 3 is a multiuser mode with remote resources available. All daemons
are running including remote file sharing daemons.
Run Level 6
- Run level 6 is used to halt the system to run level 0 and then reboot it to
run level 3.
Run Level S
- Run level S is a single-user mode where the operating system is running, but
all users are logged out and most system processes, such as print and mail, are
not running. Only one user (the superuser) is logged in to the system. Run level
S is convenient for doing backups because, since no users are logged in, all
data is stable.
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