nscd - phpMan

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,  determines  the  behavior  of  the
       cache daemon. See nscd.conf(5).

       Nscd  provides  cacheing  for  accesses  of  the  passwd(5), group(5), and hosts(5)
       databases through standard libc interfaces, such as getpwnam(3), getpwuid(3),  get-
       grnam(3), getgrgid(3), gethostbyname(3), and others.

       There are two caches for each database: a positive one for items found, and a nega-
       tive 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.  As a result of this behavior there is not  pos-
       sible  to change non-nscd user to another non-nscd user via su service when nscd is
       running.


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


NOTES
       Nscd doesn't know anything about the underlaying protocols for a service. This also
       means,  that  if you change /etc/resolv.conf for DNS queries, nscd will continue to
       use the old one if you have configured  /etc/nsswitch.conf  to  use  DNS  for  host
       lookups. In such a case, you need to restart nscd.


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

AUTHOR
       nscd was written by Thorsten Kukuk and Ulrich Drepper.



GNU C Library                       1999-10                            NSCD(8)

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