-.\" -*- nroff -*-
.\" Copyright (c) 1999, 2000 SuSE GmbH Nuernberg, Germany
.\" Author: Thorsten Kukuk <kukuk@suse.de>
.\"
+.\" %%%LICENSE_START(GPLv2+_SW_3_PARA)
.\" This program is free software; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of the
.\" General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
-.\" License along with this program; see the file COPYING. If not,
-.\" write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-.\" Boston, MA 02111-1307, USA.
+.\" License along with this manual; if not, see
+.\" <http://www.gnu.org/licenses/>.
+.\" %%%LICENSE_END
.\"
-.TH NSCD.CONF 5 1999-10 "GNU C Library"
+.TH NSCD.CONF 5 2014-02-07 "GNU" "Linux Programmer's Manual"
.SH NAME
-/etc/nscd.conf \- name service cache daemon configuration file
+nscd.conf \- name service cache daemon configuration file
.SH DESCRIPTION
The file
-.B /etc/nscd.conf
+.I /etc/nscd.conf
is read from
.BR nscd (8)
-at startup. Each line specifies either an attribute and a value, or an
-attribute, service, and a value. Fields are separated either by SPACE
-or TAB characters. A `#' (number sign) indicates the beginning of a
+at startup.
+Each line specifies either an attribute and a value, or an
+attribute, service, and a value.
+Fields are separated either by SPACE
+or TAB characters.
+A \(aq#\(aq (number sign) indicates the beginning of a
comment; following characters, up to the end of the line,
are not interpreted by nscd.
-
-Valid services are passwd, group, or hosts.
+Valid services are \fIpasswd\fP, \fIgroup\fP, \fIhosts\fP, \fIservices\fP,
+or \fInetgroup\fP.
.B logfile
.I debug-file-name
.I value
.RS
Sets the desired debug level.
+The default is 0.
.RE
.B threads
.I number
.RS
This is the number of threads that are started to wait for
-requests. At least five threads will always be created.
+requests.
+At least five threads will always be created.
+.RE
+
+.B max-threads
+.I number
+.RS
+Specifies the maximum number of threads.
+The default is 32.
.RE
.B server-user
option is ignored.
.RE
+.B stat-user
+.I user
+.RS
+Specifies the user who is allowed to request statistics.
+.RE
+
+.B reload-count
+unlimited |
+.I number
+.RS
+Limit on the number of times a cached entry gets reloaded without being used
+before it gets removed.
+The default is 5.
+.RE
+
+.B paranoia
+.I <yes|no>
+.RS
+Enabling paranoia mode causes nscd to restart itself periodically.
+The default is no.
+.RE
+
+.B restart-interval
+.I time
+.RS
+Sets the restart interval to
+.I time
+seconds
+if periodic restart is enabled by enabling
+.B paranoia
+mode.
+The default is 3600.
+.RE
+
.B enable-cache
.I service
.I <yes|no>
Enables or disables the specified
.I service
cache.
+The default is no.
.RE
.B positive-time-to-live
in the specified cache for
.IR service .
.I Value
-is in seconds. Larger values increase cache hit rates and reduce mean
+is in seconds.
+Larger values increase cache hit rates and reduce mean
response times, but increase problems with cache coherence.
.RE
in the specified cache for
.IR service .
.I Value
-is in seconds. Can result in significant performance improvements if there
+is in seconds.
+Can result in significant performance improvements if there
are several files owned by UIDs (user IDs) not in system databases (for
-example untarring the linux kernel sources as root); should be kept small
+example untarring the Linux kernel sources as root); should be kept small
to reduce cache coherency problems.
.RE
This is the internal hash table size,
.I value
should remain a prime number for optimum efficiency.
+The default is 211.
.RE
.B check-files
.RS
Enables or disables checking the file belonging to the specified
.I service
-for changes. The files are
+for changes.
+The files are
.IR /etc/passwd ,
.IR /etc/group ,
+.IR /etc/hosts ,
+.I /etc/services
and
-.IR /etc/hosts .
+.IR /etc/netgroup .
+The default is yes.
+.RE
+
+.B persistent
+.I service
+.I <yes|no>
+.RS
+Keep the content of the cache for
+.I service
+over server restarts; useful when
+.B paranoia
+mode is set.
+The default is no.
+.RE
+
+.B shared
+.I service
+.I <yes|no>
+.RS
+The memory mapping of the nscd databases for
+.I service
+is shared with the clients so
+that they can directly search in them instead of having to ask the
+daemon over the socket each time a lookup is performed.
+The default is no.
+.RE
+
+.B max-db-size
+.I service
+.I bytes
+.RS
+The maximum allowable size, in bytes, of the database files for the
+.IR service .
+The default is 33554432.
.RE
-.SH "SEE ALSO"
+.B auto-propagate
+.I service
+.I <yes|no>
+.RS
+When set to
+.IR no
+for
+.I passwd
+or
+.I group
+service, then the
+.I .byname
+requests are not added to
+.IR passwd.byuid
+or
+.I group.bygid
+cache.
+This can help with tables containing multiple records for the same ID.
+The default is yes.
+This option is valid only for services
+.IR passwd
+and
+.IR group .
+.RE
+.SH NOTES
+The default values stated in this manual page originate
+from the source code of
+.BR nscd (8)
+and are used if not overridden in the configuration file.
+The default values used in the configuration file of
+your distribution might differ.
+.SH SEE ALSO
.BR nscd (8)
-.SH AUTHOR
-.B nscd
-was written by Thorsten Kukuk and Ulrich Drepper.
+.\" .SH AUTHOR
+.\" .B nscd
+.\" was written by Thorsten Kukuk and Ulrich Drepper.
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