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System Administration Commands nscd(1M)
NAME
nscd - name service cache daemon
SYNOPSIS
/usr/sbin/nscd [-f configuration-file] [-g] [-
e cachename, yes | no] [-i cachename]
DESCRIPTION
nscd is a process that provides a cache for the most common
name service requests. The default configuration-file
/etc/nscd.conf determines the behavior of the cache daemon.
See nscd.conf(4).
nscd provides caching for the passwd(4), group(4), hosts(4),
ipnodes(4), exec_attr(4), prof_attr(4), and user_attr(4)
databases through standard libc interfaces, such as
gethostbyname(3NSL), getipnodebyname(3SOCKET),
gethostbyaddr(3NSL), and others. Each cache has a separate
time-to-live for its data; modifying the local database
(/etc/hosts, /etc/resolv.conf, and so forth) causes that
cache to become invalidated upon the next call to nscd. The
shadow file is specifically not cached. getspnam(3C) calls
remain uncached as a result.
nscd also acts as its own administration tool. If an
instance of nscd is already running, commands are passed to
the running version transparently.
In order to preserve NIS+ security, the nscd service checks
the permissions on the passwd table if NIS+ is being used.
If this table cannot be read by unauthenticated users, then
nscd will make sure that any encrypted password information
returned from the NIS+ server is supplied only to the owner
of that password.
OPTIONS
Several of the options described below require a cachename
specification. Supported values are passwd, group, hosts,
ipnodes, exec_attr, prof_attr, and user_attr.
-f configuration-file Causes nscd to read its configura-
tion data from the specified file.
-g Prints current configuration and
statistics to standard output. This
is the only option executable by
non-root users.
SunOS 5.10 Last change: 30 Oct 2003 1
System Administration Commands nscd(1M)
-e cachename, yes|no Enables or disables the specified
cache.
-i cachename Invalidate the specified cache.
EXAMPLES
Example 1: Stopping and restarting the nscd daemon.
example# svcadm disable system/name-service-cache
example# svcadm enable system/name-service-cache
FILES
/etc/nscd.conf Determines athe behavior of the
cache daemon
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWcsu |
|_____________________________|_____________________________|
SEE ALSO
svcs(1), svcadm(1M), getspnam(3C), gethostbyname(3NSL),
getipnodebyname(3SOCKET), exec_attr(4), group(4), hosts(4),
ipnodes(4), nscd.conf(4), nsswitch.conf(4), passwd(4),
prof_attr(4), user_attr(4), attributes(5),
NOTES
The output from the -g option to nscd is subject to change.
Do not rely upon it as a programming interface.
The nscd service is managed by the service management facil-
ity, smf(5), under the service identifier:
svc:/system/name-service-cache
Administrative actions on this service, such as enabling,
disabling, or requesting restart, can be performed using
svcadm(1M). The service's status can be queried using the
svcs(1) command.
SunOS 5.10 Last change: 30 Oct 2003 2
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This page was generated on Wed Sep 12 11:26:22 GMT 2007
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