NSCD.CONF(5)						     Linux Programmer's Manual						      NSCD.CONF(5)

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)

COLOPHON

       This  page is part of release 3.25 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    1999-10-01							      NSCD.CONF(5)