nscd

 

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 Maintenance 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. It starts up during multi-user boot.
      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 invalidated 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 transparently.
 
      In order to preserve NIS+ security, the startup  script  for
      nscd (/etc/init.d/nscd) 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 supplied 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  stan-
            dard  output.  This  is  the only option executable by
            non-root users.
 
      -e cachename, yes|no
            Enables or disables the specified cache.
 
      -i cachename
 
 
 
 SunOS 5.8           Last change: 10 Jul 2001                    1
 
 
 
 
 
 
 Maintenance Commands                                     nscd(1M)
 
 
 
            Invalidate the specified cache.
 
 EXAMPLES
      Example 1: Stopping and restarting the nscd daemon.
 
      example# /etc/init.d/nscd stop
 
      example# /etc/init.d/nscd start
 


FILES
      /etc/nscd.conf determines athe behavior of the cache daemon
 


ATTRIBUTES
      See attributes(5) for descriptions of the  following  attri-
      butes:
 
      ____________________________________________________________
     |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
     |_____________________________|_____________________________|
     | Availability                | SUNWcsu                     |
     |_____________________________|_____________________________|
 
 


SEE ALSO
      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.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 SunOS 5.8           Last change: 10 Jul 2001                    2
 
 
 

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