2004-11-03 13:51:07 +00:00
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.\" -*- nroff -*-
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.\" Copyright (c) 1999, 2000 SuSE GmbH Nuernberg, Germany
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.\" Author: Thorsten Kukuk <kukuk@suse.de>
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.\"
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.\" This program is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of the
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.\" License, or (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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.\" General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this program; see the file COPYING. If not,
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.\" write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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.\" Boston, MA 02111-1307, USA.
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.\"
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.TH NSCD.CONF 5 1999-10 "GNU C Library"
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.SH NAME
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2005-07-06 07:41:37 +00:00
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/etc/nscd.conf \- name service cache daemon configuration file
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2004-11-03 13:51:07 +00:00
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.SH DESCRIPTION
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The file
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.B /etc/nscd.conf
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is read from
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.BR nscd (8)
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at startup. Each line specifies either an attribute and a value, or an
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attribute, service, and a value. Fields are separated either by SPACE
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or TAB characters. A `#' (number sign) indicates the beginning of a
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comment; following characters, up to the end of the line,
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are not interpreted by nscd.
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Valid services are passwd, group, or hosts.
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.B logfile
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.I debug-file-name
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.RS
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Specifies name of the file to which debug info should be written.
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.RE
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.B debug-level
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.I value
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.RS
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Sets the desired debug level.
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.RE
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.B threads
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.I number
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.RS
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This is the number of threads that are started to wait for
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requests. At least five threads will always be created.
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.RE
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.B server-user
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.I user
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.RS
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If this option is set, nscd will run as this user and not as root.
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If a separate cache for every user is used (\-S parameter), this
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2004-11-03 13:51:07 +00:00
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option is ignored.
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.RE
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.B enable-cache
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.I service
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.I <yes|no>
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.RS
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Enables or disables the specified
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.I service
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cache.
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.RE
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.B positive-time-to-live
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.I service
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.I value
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.RS
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Sets the TTL (time-to-live) for positive entries (successful queries)
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in the specified cache for
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.IR service .
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.I Value
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is in seconds. Larger values increase cache hit rates and reduce mean
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response times, but increase problems with cache coherence.
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.RE
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.B negative-time-to-live
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.I service
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.I value
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.RS
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Sets the TTL (time-to-live) for negative entries (unsuccessful queries)
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in the specified cache for
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.IR service .
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.I Value
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is in seconds. Can result in significant performance improvements if there
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are several files owned by uids (user IDs) not in system databases (for
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example untarring the linux kernel sources as root); should be kept small
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to reduce cache coherency problems.
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.RE
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.B suggested-size
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.I service
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.I value
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.RS
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This is the internal hash table size,
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.I value
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should remain a prime number for optimum efficiency.
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.RE
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.B check-files
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.I service
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.I <yes|no>
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.RS
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Enables or disables checking the file belonging to the specified
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.I service
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for changes. The files are
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.IR /etc/passwd ,
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.IR /etc/group ,
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and
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.IR /etc/hosts .
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.RE
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.SH "SEE ALSO"
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.BR nscd (8)
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.SH AUTHOR
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.B nscd
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was written by Thorsten Kukuk and Ulrich Drepper.
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