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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man8/nscd.8 | |
parent | Initial commit. (diff) | |
download | manpages-399644e47874bff147afb19c89228901ac39340e.tar.xz manpages-399644e47874bff147afb19c89228901ac39340e.zip |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man8/nscd.8')
-rw-r--r-- | man8/nscd.8 | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/man8/nscd.8 b/man8/nscd.8 new file mode 100644 index 0000000..1b39b95 --- /dev/null +++ b/man8/nscd.8 @@ -0,0 +1,84 @@ +.\" Copyright 1999 SuSE GmbH Nuernberg, Germany +.\" Author: Thorsten Kukuk <kukuk@suse.de> +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.\" 2008-12-05 Petr Baudis <pasky@suse.cz> +.\" Rewrite the NOTES section to reflect modern reality +.\" +.TH nscd 8 2022-10-30 "Linux man-pages 6.05.01" +.SH NAME +nscd \- name service cache daemon +.SH DESCRIPTION +.B nscd +is a daemon that provides a cache for the most common name service +requests. +The default configuration file, +.IR /etc/nscd.conf , +determines the behavior of the cache daemon. +See +.BR nscd.conf (5). +.PP +.B nscd +provides caching for accesses of the +.BR passwd (5), +.BR group (5), +.BR hosts (5) +.BR services (5) +and +.I netgroup +databases through standard libc interfaces, such as +.BR getpwnam (3), +.BR getpwuid (3), +.BR getgrnam (3), +.BR getgrgid (3), +.BR gethostbyname (3), +and others. +.PP +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. +.BR getspnam (3) +calls remain uncached as a result. +.SH OPTIONS +.TP +.B "\-\-help" +will give you a list with all options and what they do. +.SH NOTES +The daemon will try to watch for changes in configuration files +appropriate for each database (e.g., +.I /etc/passwd +for the +.I passwd +database or +.I /etc/hosts +and +.I /etc/resolv.conf +for the +.I hosts +database), and flush the cache when these are changed. +However, this will happen only after a short delay (unless the +.BR inotify (7) +mechanism is available and glibc 2.9 or later is available), +and this auto-detection does not cover configuration files +required by nonstandard NSS modules, if any are specified in +.IR /etc/nsswitch.conf . +In that case, you need to run the following command +after changing the configuration file of the database so that +.B nscd +invalidates its cache: +.PP +.in +4n +.EX +$ \fBnscd \-i\fP \fI<database>\fP +.EE +.in +.SH SEE ALSO +.BR nscd.conf (5), +.BR nsswitch.conf (5) +.\" .SH AUTHOR +.\" .B nscd +.\" was written by Thorsten Kukuk and Ulrich Drepper. |