projects / thirdparty / man-pages.git / blame
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1 | .\" -*- nroff -*- |
| 2 | .\" Copyright 1999 SuSE GmbH Nuernberg, Germany | |
| 3 | .\" Author: Thorsten Kukuk <kukuk@suse.de> | |
| 4 | .\" | |
| 5 | .\" This program is free software; you can redistribute it and/or | |
| 6 | .\" modify it under the terms of the GNU General Public License as | |
| 7 | .\" published by the Free Software Foundation; either version 2 of the | |
| 8 | .\" License, or (at your option) any later version. | |
| 9 | .\" | |
| 10 | .\" This program is distributed in the hope that it will be useful, | |
| 11 | .\" but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | .\" General Public License for more details. | |
| 14 | .\" | |
| 15 | .\" You should have received a copy of the GNU General Public | |
| 16 | .\" License along with this program; see the file COPYING. If not, | |
| 17 | .\" write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 18 | .\" Boston, MA 02111-1307, USA. | |
| 19 | .\" | |
| 20 | .TH NSCD 8 1999-10 "GNU C Library" "Linux Programmer's Manual" | |
| 21 | .SH NAME | |
| 4d9b6984 | 22 | /usr/sbin/nscd \- name service cache daemon |
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23 | .SH DESCRIPTION |
| 24 | Nscd is a daemon that provides a cache for the most common name service | |
| 25 | requests. The default configuration file, | |
| 26 | .IR /etc/nscd.conf , | |
| 27 | determines the behavior of the cache daemon. See | |
| 28 | .BR nscd.conf (5). | |
| 29 | ||
| 30 | Nscd provides cacheing for accesses of the | |
| 31 | .BR passwd (5), | |
| 32 | .BR group (5), | |
| 33 | and | |
| 34 | .BR hosts(5) | |
| 35 | databases through standard libc interfaces, such as | |
| 36 | .BR getpwnam (3), | |
| 37 | .BR getpwuid (3), | |
| 38 | .BR getgrnam (3), | |
| 39 | .BR getgrgid (3), | |
| 40 | .BR gethostbyname (3), | |
| 41 | and others. | |
| 42 | ||
| 43 | There are two caches for each database: | |
| 44 | a positive one for items found, and a negative one | |
| 45 | for items not found. Each cache has a separate TTL (time-to-live) | |
| 46 | period for its data. | |
| 47 | Note that the shadow file is specifically not cached. | |
| 48 | .BR getspnam (3) | |
| 49 | calls remain uncached as a result. | |
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50 | .SH OPTIONS |
| 51 | .TP | |
| 52 | .B "\-\-help" | |
| 53 | will give you a list with all options and what they do. | |
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54 | .SH NOTES |
| 55 | Nscd doesn't know anything about the underlaying protocols for a | |
| 56 | service. This also means, that if you change | |
| 57 | .I /etc/resolv.conf | |
| 58 | for DNS queries, nscd will continue to use the old one if you have | |
| 59 | configured | |
| 60 | .I /etc/nsswitch.conf | |
| 61 | to use DNS for host lookups. In such a case, you need to restart | |
| 62 | nscd. | |
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63 | .SH "SEE ALSO" |
| 64 | .BR nscd.conf (5), | |
| 65 | .BR nsswitch.conf (5) | |
| 66 | .SH AUTHOR | |
| 67 | .B nscd | |
| 68 | was written by Thorsten Kukuk and Ulrich Drepper. |