Name
/etc/nscd.conf — name service cache daemon
configuration file
DESCRIPTION
The file /etc/nscd.conf is
read from 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 comment; following characters, up to the end
of the line, are not interpreted by nscd.
Valid services are passwd, group, or hosts.
logfile
debug-file-name
Specifies name of the file to which debug info should
be written.
debug-level
value
Sets the desired debug level.
threads
number
This is the number of threads that are started to wait
for requests. At least five threads will always be
created.
server-user
user
If this option is set, nscd will run as this user and
not as root. If a separate cache for every user is used
(−S parameter), this option is ignored.
enable-cache
service <yes|no>
Enables or disables the specified service cache.
positive-time-to-live
service value
Sets the TTL (time-to-live) for positive entries
(successful queries) in the specified cache for
service.
Value is in
seconds. Larger values increase cache hit rates and
reduce mean response times, but increase problems with
cache coherence.
negative-time-to-live
service value
Sets the TTL (time-to-live) for negative entries
(unsuccessful queries) in the specified cache for
service.
Value 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
to reduce cache coherency problems.
suggested-size
service value
This is the internal hash table size, value should remain a
prime number for optimum efficiency.
check-files
service <yes|no>
Enables or disables checking the file belonging to the
specified service for changes. The
files are /etc/passwd,
/etc/group, and
/etc/hosts.
max-threads
threads
Specifies the maximum number of threads to be
started.
stat-user
username
Specifies the user who is allowed to request
statistics.
reload-count
unlimited | number
Limit on the number of times a cached entry gets
reloaded without being used before it gets removed. The
default is 5.
paranoia
<yes|no>
Enabling paranoia mode causes nscd to restart itself
periodically.
restart-interval
time
Sets the restart interval to time seconds if periodic restart is
enabled by enabling paranoia mode.
persistent
service <yes|no>
Keep the content of the cache for service over server
restarts; useful when paranoia mode is set.
shared
service <yes|no>
The memory mapping of the nscd databases for
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.
SEE ALSO
nscd(8)
Copyright (c) 1999, 2000 SuSE GmbH Nuernberg, Germany
Author: Thorsten Kukuk <kukuk@suse.de>
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
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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.
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