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-.\" Copyright (c) 2005 Michael Bushkov <bushman@rsu.ru>
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd October 20, 2005
-.Dt CACHED 8
-.Os
-.Sh NAME
-.Nm cached
-.Nd "caching server daemon"
-.Sh SYNOPSIS
-.Nm
-.Op Fl dnst
-.Op Fl i Ar cachename
-.Op Fl I Ar cachename
-.Sh DESCRIPTION
-The
-.Nm
-utility
-is the system caching daemon.
-It can cache almost all types of data and is basically intended to be used
-with the
-.Nm nsswitch
-subsystem.
-The cache is actually per-user.
-This means that each user can work only with the
-cached data that were cached by themselves, and cannot poison the
-cache of other users.
-The
-.Nm
-utility supports two types of caching:
-.Bl -tag -width ".Sy Type"
-.It Sy Type
-.Sy Description
-.It Common caching
-Each cached element is the key+value pair.
-This type of caching supports policies which are applied when maximum
-number of cached elements is exceeded.
-Three policies are available:
-.Cm FIFO
-(first in - first out),
-.Cm LRU
-(least recently used) and
-.Cm LFU
-(least frequently used).
-This type of caching is used with the
-.Fn getXXXbyname
-family of functions.
-.It Multipart caching
-Each cached element is the part of the elements sequence.
-This type of caching is intended to be used with the
-.Fn getXXXent
-family of functions.
-.El
-.Pp
-The
-.Nm
-utility is able not only to cache elements, but to perform the actual nsswitch
-lookups by itself.
-To enable this feature, use the
-.Va perform-actual-lookups
-parameter in
-.Xr cached.conf 5 .
-.Pp
-The
-.Nm
-utility recognizes the following runtime options:
-.Bl -tag -width indent
-.\" .It Fl d
-.\" XXX Document me!
-.It Fl n
-Do not daemonize;
-.Nm
-will not fork or disconnect itself from the terminal.
-.It Fl s
-Single-threaded mode.
-Forces using only one thread for all processing purposes (it overrides
-the
-.Va threads
-parameter in the
-.Xr cached.conf 5
-file).
-.It Fl t
-Trace mode.
-All trace messages will be written to stdout.
-This mode is usually used with
-.Fl n
-and
-.Fl s
-flags are used for debugging purposes.
-.It Fl i Ar cachename
-Invalidates personal cache.
-When specified,
-.Nm
-acts as the administration tool.
-It asks the already running
-.Nm
-to invalidate the specified part of the cache of the
-calling user.
-For example, sometimes you may want to invalidate your
-.Dq Li hosts
-cache.
-You can specify
-.Dq Li all
-as the
-.Ar cachename
-to invalidate your personal cache as a whole.
-You cannot use this option for the
-.Ar cachename
-for which the
-.Va perform-actual-lookups
-option is enabled.
-.It Fl I Ar cachename
-Invalidates the cache for every user.
-When specified,
-.Nm
-acts as the administration tool.
-It asks the already
-running
-.Nm
-to invalidate the specified part of the cache for
-every user.
-You can specify
-.Dq Li all
-as the
-.Ar cachename
-to invalidate the whole cache.
-Only the root can use this option.
-.El
-.Sh FILES
-.Bl -tag -width ".Pa /etc/cached.conf" -compact
-.It Pa /etc/cached.conf
-The default configuration file.
-.El
-.Sh SEE ALSO
-.Xr nsdispatch 3 ,
-.Xr cached.conf 5 ,
-.Xr nsswitch.conf 5
-.Sh AUTHORS
-.An Michael Bushkov Aq bushman@rsu.ru
-.Sh BUGS
-Please send bug reports and suggestions to
-.Aq bushman@rsu.ru .
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