nscd(8) [suse man page]

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

NAME

       /usr/sbin/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 3.25 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
								    2008-12-05								   NSCD(8)

nscd(1M)						  System Administration Commands						  nscd(1M)

NAME

       nscd - name service cache daemon

SYNOPSIS

       /usr/sbin/nscd [-f configuration-file] [-g] [-e cachename, yes | no]  [-i cachename]

DESCRIPTION

       nscd is a process that provides a cache for the most common name service requests. The default configuration-file /etc/nscd.conf determines
       the behavior of the cache daemon. See nscd.conf(4).

       nscd provides caching for the passwd(4), group(4), hosts(4), ipnodes(4), exec_attr(4), prof_attr(4),  and  user_attr(4)	databases  through
       standard libc interfaces, such as gethostbyname(3NSL), getipnodebyname(3SOCKET), gethostbyaddr(3NSL), and others. Each cache has a separate
       time-to-live for its data; modifying the local database (/etc/hosts, /etc/resolv.conf, and so forth) causes that cache  to  become  invali-
       dated upon the next call to nscd. The shadow file is specifically not cached. getspnam(3C) calls remain uncached as a result.

       nscd also acts as its own administration tool. If an instance of nscd is already running, commands are passed to the running version trans-
       parently.

       In order to preserve NIS+ security, the nscd service checks the permissions on the passwd table if NIS+ is being used. If this table cannot
       be  read  by  unauthenticated users, then nscd will make sure that any encrypted password information returned from the NIS+ server is sup-
       plied only to the owner of that password.

OPTIONS

       Several of the options described below require a cachename specification. Supported values are passwd, group,  hosts,  ipnodes,	exec_attr,
       prof_attr, and user_attr.

       -f configuration-file   Causes nscd to read its configuration data from the specified file.

       -g		       Prints  current	configuration  and  statistics	to standard output. This is the only option executable by non-root
			       users.

       -e cachename, yes|no    Enables or disables the specified cache.

       -i cachename	       Invalidate the specified cache.

EXAMPLES

       Example 1: Stopping and restarting the nscd daemon.

       example# svcadm disable system/name-service-cache

       example# svcadm enable system/name-service-cache

FILES

       /etc/nscd.conf	       Determines athe behavior of the cache daemon

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       svcs(1),  svcadm(1M),  getspnam(3C),  gethostbyname(3NSL),  getipnodebyname(3SOCKET),   exec_attr(4),   group(4),   hosts(4),   ipnodes(4),
       nscd.conf(4), nsswitch.conf(4), passwd(4), prof_attr(4), user_attr(4), attributes(5),

NOTES

       The output from the -g option to nscd is subject to change. Do not rely upon it as a programming interface.

       The nscd service is managed by the service management facility, smf(5), under the service identifier:

       svc:/system/name-service-cache

       Administrative  actions	on  this  service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
       vice's status can be queried using the svcs(1) command.

SunOS 5.10							    30 Oct 2003 							  nscd(1M)