1NSCD(8)                    Linux Programmer's Manual                   NSCD(8)
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NAME

6       /usr/sbin/nscd - name service cache daemon
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DESCRIPTION

9       Nscd is a daemon that provides a cache for the most common name service
10       requests. The default configuration  file,  /etc/nscd.conf,  determines
11       the behavior of the cache daemon. See nscd.conf(5).
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13       Nscd  provides  cacheing  for  accesses of the passwd(5), group(5), and
14       hosts(5) databases through standard libc  interfaces,  such  as  getpw‐
15       nam(3),  getpwuid(3),  getgrnam(3),  getgrgid(3), gethostbyname(3), and
16       others.
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18       There are two caches for each database: a positive one for items found,
19       and  a  negative one for items not found. Each cache has a separate TTL
20       (time-to-live) period for its data.   Note  that  the  shadow  file  is
21       specifically  not  cached.   getspnam(3)  calls  remain  uncached  as a
22       result.  As a result of this behavior there is not possible  to  change
23       non-nscd user to another non-nscd user via su service when nscd is run‐
24       ning.
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OPTIONS

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

32       Nscd doesn't know anything about the underlaying protocols for  a  ser‐
33       vice.  This  also  means,  that  if you change /etc/resolv.conf for DNS
34       queries, nscd will continue to use the old one if you  have  configured
35       /etc/nsswitch.conf  to  use  DNS  for host lookups. In such a case, you
36       need to restart nscd.
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SEE ALSO

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

43       nscd was written by Thorsten Kukuk and Ulrich Drepper.
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47GNU C Library                       1999-10                            NSCD(8)