NSCD(8) 						     Linux Programmer's Manual							   NSCD(8)

NAME

       nscd - name service cache daemon

DESCRIPTION

       Nscd  is  a daemon that provides a cache for the most common name service requests.  The default configuration file, /etc/nscd.conf, deter-
       mines the behavior of the cache daemon.	See nscd.conf(5).

       Nscd provides caching for accesses of the passwd(5), group(5), and hosts(5) databases through standard  libc  interfaces,  such	as  getpw-
       nam(3), getpwuid(3), getgrnam(3), getgrgid(3), gethostbyname(3), and others.

       There  are two caches for each database: a positive one for items found, and a negative one for items not found.  Each cache has a separate
       TTL (time-to-live) period for its data.	Note that the shadow file is specifically not cached.  getspnam(3)  calls  remain  uncached  as  a
       result.

OPTIONS

       --help will give you a list with all options and what they do.

NOTES

       The daemon will try to watch for changes in configuration files appropriate for each database (e.g., /etc/passwd for the passwd database or
       /etc/hosts and /etc/resolv.conf for the hosts database), and flush the cache when these are changed.  However, this will happen only  after
       a  short  delay	(unless the inotify(7) mechanism is available and glibc 2.9 or later is available), and this auto-detection does not cover
       configuration files required by nonstandard NSS modules, if any are specified in /etc/nsswitch.conf.  In that case, you	need  to  run  the
       following command after changing the configuration file of the database so that nscd invalidates its cache:

	   $ nscd -i <database>

SEE ALSO

       nscd.conf(5), nsswitch.conf(5)

COLOPHON

       This  page is part of release 3.55 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
								    2012-05-10								   NSCD(8)