Provided by: libnss-ldapd_0.5_i386
nss-ldapd.conf - configuration file for LDAP nameservice provider
The nss-ldapd module allows LDAP directory servers to be used as a
primary source of name service information. (Name service information
typically includes users, hosts, groups, and other such data
historically stored in flat files or NIS.)
The file nss-ldapd.conf contains the configuration information for
running nslcd (see nslcd(8)). The file contains options, one on each
line, defining the way NSS lookups are mapped onto LDAP lookups.
GENERAL CONNECTION OPTIONS
Specifies the LDAP URI of the server to connect to. The URI
scheme may be ldap, ldapi or ldaps, specifying LDAP over TCP,
ICP or SSL respectively (if supported by the LDAP library).
Alternitively, the value DNS may be used to try to lookup the
server using DNS SRV records.
When using the ldapi scheme, %2f should be used to escape
slashes (e.g. ldapi://%2fvar%2frun%2fslapd%2fldapi/), although
most of the time this should not be needed.
This option may be specified multiple times. Normally, only the
first server will be used with the following servers as fallback
(see bind_timelimit below).
If LDAP lookups are used for host name resolution, any host
names should be specified as an IP address or name that can be
resolved without using LDAP.
Specifies the version of the LDAP protocol to use. The default
is to use the maximum version supported by the LDAP library.
Specifies the distinguished name with which to bind to the
directory server for lookups. server for lookups. The default
is to bind anonymously.
Specifies the cleartext credentials with which to bind. This
option is only applicable when used with binddn above.
When binding to the directory using SASL or other authentication
mechanisms apart from simple binds, this option is not used.
KERBEROS AUTHENTICATION OPTIONS
Set the name for the GSS-API Kerberos credentials cache.
base [MAP] DN
Specifies the base distinguished name (DN) to use as search
base. A global search base may be specified or a MAP-specific
one. If no MAP-specific search base is defined the global one
If, instead of a DN, the value DOMAIN is specified, the hosts
DNS domain is used to construct a basedn.
scope [MAP] sub[tree]|one[level]|base
Specifies the search scope (subtree, one level or base object).
The default scope is subtree; base scope is almost never useful
for nameservice lookups.
Specifies the policy for dereferencing aliases. The default
policy is to never dereference aliases.
Specifies whether automatic referral chasing should be enabled.
The default behaviour is to chase referrals.
filter MAP FILTER
The FILTER is an LDAP search filter to use for a specific map.
The default filter is a basic search on the objectClass for the
map (e.g. (objectClass=posixAccount)).
map MAP ATTRIBUTE NEWATTRIBUTE
This option allows for custom attributes to be looked up instead
of the default RFC 2307 attributes. The MAP may be one of the
supported maps below. The ATTRIBUTE is the one as used in RFC
2307 (e.g. userPassword, ipProtocolNumber or macAddress). The
NEWATTRIBUTE may be any attribute as it is available in the
Specifies the time limit (in seconds) to use when connecting to
the directory server. This is distinct from the time limit
specified in timelimit and affects the setup of the connection
only. Note that not all LDAP client libraries have support for
setting the connection timeout. The default bind timelimit is
Specifies the time limit (in seconds) to wait for a response
from the LDAP server. A value of zero (0), which is the
default, is to wait indefinitely for searches to be completed.
Specifies the period if inactivity (in seconds) after which the
connection to the LDAP server will be closed. The default is
not to time out connections.
Specifies the number of times each LDAP server is tried when
connections to all LDAP servers fail. By default each URI is
tried 4 times.
Specifies the number of seconds to sleep between reconnection
tries if the connection to all LDAP servers fail. This value is
doubled with each try up to the value of the
reconnect_maxsleeptime option. By default 1 second is waited
between the first failure and the first retry.
Specifies the maximum number of seconds to sleep between
reconnection tries if the connection to all LDAP servers fail.
This value limits the doubling mechanism described with the
reconnect_maxsleeptime option. The default value is 30 seconds.
Note that the reconnect logic as described above is the mechanism that
is used between nslcd and the LDAP server. The mechanism between the
NSS client library and nslcd is simpler with a fixed compiled-in
timeout of a 1.5 seconds for writing to nslcd and a timeout of 2
seconds for reading answers. nslcd itself has a read timeout of 0.5
seconds and a write timeout of 5 seconds.
Specifies whether to use SSL/TLS or not (the default is not to).
If start_tls is specified then StartTLS is used rather than raw
LDAP over SSL. Not all LDAP client libraries support both SSL
and StartTLS, and all related configuration options.
For the Netscape and Mozilla LDAP client libraries only, this
specifies the path to the X.509 certificate database.
Specifies whether to require and verify the server certificate
or not, when using SSL/TLS with the OpenLDAP client library.
The default is to use the default behaviour of the client
library; for OpenLDAP 2.0 and earlier it is "no", for OpenLDAP
2.1 and later it is "yes". At least one of tls_cacertdir and
tls_cacertfile is required if peer verification is enabled.
Specifies the directory containing X.509 certificates for peer
Specifies the path to the X.509 certificate for peer
Specifies the path to an entropy source.
Specifies the ciphers to use for TLS. See your TLS
implementation’s documentation for further information.
Specifies the path to the file containing the local certificate
for client TLS authentication.
Specifies the path to the file containing the private key for
client TLS authentication.
Set this to a number greater than 0 to request paged results
from the LDAP server in accordance with RFC2696. The default
(0) is to not request paged results.
The following maps are supported. They are referenced as MAP in the
Mail aliases. Note that most mail servers do not use the NSS
interface for requesting mail aliases and parse /etc/aliases on
Ethernet numbers (mac addresses).
group Posix groups.
Host and user groups used for access control.
passwd Posix users.
Protocol definitions (like in /etc/protocols).
rpc Remote procedure call names and numbers.
Network service names and numbers.
shadow Shadow user password information.
the main configuration file
Name Service Switch configuration file
This manual was written by Arthur de Jong <firstname.lastname@example.org> and is
based on the nss_ldap(5) manual developed by PADL Software Pty Ltd.
This manual page may be outdated and inaccurate and will be improved in
upcoming releases. The features of nss-ldapd are still under
development so these options may change in a future release.