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 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
Nscd doesn't know anything about the underlying protocols for a ser‐
vice. 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 ALSOnscd.conf(5), nsswitch.conf(5)COLOPHON
This page is part of release 3.15 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 1999-10-01 NSCD(8)
