nsscache.conf man page on DragonFly
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NSSCACHE.CONF(5) File formats NSSCACHE.CONF(5)
NAME
nsscache.conf - NSS local cache synchroniser configuration file
SYNOPSIS
/etc/nsscache.conf
DESCRIPTION
nsscache synchronises a local NSS cache, and other databases, against a
remote data source. This approach allows the administrator to separate
the network from the NSS lookup codepath, improving speed and reliabil‐
ity of name services.
The nsscache configuration file comprises of one DEFAULT section, fol‐
lowed by zero or more map-specific configuration sections. The file
format is similar to that of ".ini" files.
The DEFAULT section must provide at least one source keyword, specify‐
ing the data source to use, one cache keyword, specifying the means in
which the cache data will be stored locally, and one maps keyword,
specifying which NSS maps should be cached, and one timestamp_dir key‐
word, specifying the location of the timestamps used for incremental
updates.
Additional global defaults, such as LDAP search parameters, or the
filesystem location of the cache, may also be included in the DEFAULT
section.
Additional sections may be included that allow per-map overrides to
configuration options. For example, one might specify their global
LDAP search base as ou=People but want to override that for the group
mapping as ou=Groups
Apart from the source, cache, and maps configuration options, all
options are prefixed by the name of the module that they configure.
A complete list of configuration options follows.
DEFAULT-only OPTIONS
source Specifies the source to use to retrieve NSS data from.
Valid Options: ldap
cache Specifies the cache method to use to store the data, which will
be queried by the NSS itself.
Valid options: files Store in a plain text file, similar in for‐
mat to /etc/passwd
cache Store in a plain text cache file, with a .cache suffix,
and an index, for use with the nss-cache NSS module.
nssdb Store in a Berkeley DB file, for use with the nss_db NSS
module. Please note that this option is deprecated in favour of
cache
maps Specifies the names of the maps that will be queried and cached
by nsscache
Valid options: passwd group shadow netgroup automount sshkey
timestamp_dir
Specifies the directory where update and modify timestamps are
stored.
ldap SOURCE OPTIONS
These options configure the behaviour of the ldap source.
ldap_uri
The LDAP URI to connect to.
ldap_base
The base to perform LDAP searches under.
ldap_filter
The search filter to use when querying.
ldap_scope
The search scope to use. Defaults to one
ldap_bind_dn
The bind DN to use when connecting to LDAP. Emtpy string is an
anonymous bind. Defaults to the empty string.
ldap_bind_password
The bind password to use when connecting to LDAP. Empty string
is used for anonymous binds. Defaults to the empty string.
ldap_timelimit
Timelimit in seconds for search results to return. -1 means no
limit. Defaults to -1.
ldap_retry_max
Number of retries on soft failures before giving up. Defaults
to 3.
ldap_retry_delay
Delay in seconds between retries. Defaults to 5.
ldap_tls_require_cert
Sets expectations for SSL certificates, using TLS. One of
'never', 'hard', 'demand', 'allow', or 'try'. See ldap.conf(5)
for more information.
ldap_tls_cacertdir
Directory for trusted CA certificates. Defaults to
/usr/share/ssl
ldap_tls_cacertfile
Filename containing trusted CA certificates. Defaults to
/usr/share/ssl/cert.pem
ldap_uidattr
The uid-like attribute in your directory. Defaults to uid.
ldap_uidregex
A Python regex to extract uid components from the uid-like
attribute. All matching groups are concatenated without spaces.
For example: '(.*)@example.com' would return a uid to the left
of the @example.com domain. Default is no regex.
ldap_groupregex
A Python regex to extract group member components from the mem‐
ber or memberOf attributes. All matching groups are concate‐
nated without spaces. For example: '(.*)@example.com' would
return a member without the the @example.com domain. Default is
no regex.
ldap_rfc2307bis
Default uses rfc2307 schema. If rfc2307bis (groups stored as a
list of DNs in 'member' attr), set this to 1.
ldap_debug
Sets the debug level for the underlying C library. Defaults to
no logging.
nssdb CACHE OPTIONS
These options configure the behaviour of the nssdb cache.
nssdb_dir
Directory to store the Berkeley DB databases. Defaults to the
current directory. Note that nss_db hardcodes the path to
/var/db/nsscache on Debian systems, and /var/db on Red Hat sys‐
tems.
nssdb_makedb
Path to the makedb(1) command, which is used by the nssdb cache
code to ensure that the Berkeley DB version created by the mod‐
ule matches that expected by the nss_db NSS module.
files CACHE OPTIONS
These optiosn configure the behaviour of the files cache.
files_dir
Directory location to store the plain text files in. Defaults
to the current directory.
files_cache_filename_suffix
A suffix appended to the cache filename to differentiate it
from, say, system NSS databases. Defaults to '.cache'.
files_local_automount_master
A yes/no field only used for automount maps. A 'yes' value will
cause nsscache to update the auto.master file with the master
map from the source. A 'no' value will cause nsscache to leave
auto.master alone, allowing the system to manage this file in
other ways. When set to 'no', nsscache will only update other
automount maps defined both locally and in the source. Defaults
to 'yes'.
EXAMPLE
A typical example might look like this:
[DEFAULT]
source = ldap
cache = nssdb
maps = passwd, group, shadow
ldap_uri = ldap://ldap.example.com
ldap_base = ou=People,dc=example,dc=com
ldap_filter = (objectclass=posixAccount)
nssdb_dir = /var/db/nsscache
[group]
ldap_base = ou=Group,dc=example,dc=com
ldap_filter = (objectclass=posixGroup)
[shadow]
ldap_filter = (objectclass=posixAccount)
And a complementary /etc/nsswitch.conf might look like this:
passwd: files db
group: files db
shadow: files db
FILES
/etc/nsscache.conf
The system-wide nsscache configuration file
SEE ALSO
nsscache(1)
nsswitch.conf(5)
The system name service switch configuration file
ldap.conf(5)
Details on LDAP configuration options exposed by the LDAP client
libraries.
AUTHOR
Written by Jamie Wilkinson (jaq@google.com) and Vasilios Hoffman
(vasilios@google.com).
COPYRIGHT
Copyright © 2007 Google, Inc.
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
nsscache 0.27 2008-11-19 NSSCACHE.CONF(5)
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