1 .TH LDAP.CONF 5 "RELEASEDATE" "OpenLDAP LDVERSION"
3 .\" Copyright 1998-2005 The OpenLDAP Foundation All Rights Reserved.
4 .\" Copying restrictions apply. See COPYRIGHT/LICENSE.
7 ldap.conf, .ldaprc \- ldap configuration file
9 ETCDIR/ldap.conf, .ldaprc
11 If the environment variable \fBLDAPNOINIT\fP is defined, all
12 defaulting is disabled.
16 configuration file is used to set system-wide defaults to be applied when
21 Users may create an optional configuration file,
25 in their home directory which will be used to override the system-wide
29 in the current working directory is also used.
32 Additional configuration files can be specified using
33 the \fBLDAPCONF\fP and \fBLDAPRC\fP environment variables.
34 \fBLDAPCONF\fP may be set to the path of a configuration file. This
35 path can be absolute or relative to the current working directory.
36 The \fBLDAPRC\fP, if defined, should be the basename of a file
37 in the current working directory or in the user's home directory.
39 Environmental variables may also be used to augment the file based defaults.
40 The name of the variable is the option name with an added prefix of \fBLDAP\fP.
41 For example, to define \fBBASE\fP via the environment, set the variable
42 \fBLDAPBASE\fP to the desired value.
44 Some options are user\-only. Such options are ignored if present
50 The configuration options are case-insensitive;
51 their value, on a case by case basis, may be case-sensitive.
52 The different configuration options are:
54 .B URI <ldap[s]://[name[:port]] ...>
55 Specifies the URI(s) of an LDAP server(s) to which the
57 library should connect. The URI scheme may be either
61 which refer to LDAP over TCP and LDAP over SSL (TLS) respectively.
62 Each server's name can be specified as a
63 domain-style name or an IP address literal. Optionally, the
64 server's name can followed by a ':' and the port number the LDAP
65 server is listening on. If no port number is provided, the default
66 port for the scheme is used (389 for ldap://, 636 for ldaps://).
67 A space separated list of URIs may be provided.
70 Specifies the default base DN to use when performing ldap operations.
71 The base must be specified as a Distinguished Name in LDAP format.
74 Specifies the default bind DN to use when performing ldap operations.
75 The bind DN must be specified as a Distinguished Name in LDAP format.
76 This is a user\-only option.
78 .B HOST <name[:port] ...>
79 Specifies the name(s) of an LDAP server(s) to which the
81 library should connect. Each server's name can be specified as a
82 domain-style name or an IP address and optionally followed by a ':' and
83 the port number the ldap server is listening on. A space separated
84 list of hosts may be provided.
86 is deprecated in favor of
90 Specifies the default port used when connecting to LDAP servers(s).
91 The port may be specified as a number.
93 is deprecated in favor of
96 .B SIZELIMIT <integer>
97 Specifies a size limit to use when performing searches. The
98 number should be a non-negative integer. \fISIZELIMIT\fP of zero (0)
99 specifies unlimited search size.
101 .B TIMELIMIT <integer>
102 Specifies a time limit to use when performing searches. The
103 number should be a non-negative integer. \fITIMELIMIT\fP of zero (0)
104 specifies unlimited search time to be used.
107 Specifies how alias dereferencing is done when performing a search. The
109 can be specified as one of the following keywords:
113 Aliases are never dereferenced. This is the default.
116 Aliases are dereferenced in subordinates of the base object, but
117 not in locating the base object of the search.
120 Aliases are only dereferenced when locating the base object of the search.
123 Aliases are dereferenced both in searching and in locating the base object
127 If OpenLDAP is built with Simple Authentication and Security Layer support,
128 there are more options you can specify.
130 .B SASL_MECH <mechanism>
131 Specifies the SASL mechanism to use.
132 This is a user\-only option.
134 .B SASL_REALM <realm>
135 Specifies the SASL realm.
136 This is a user\-only option.
138 .B SASL_AUTHCID <authcid>
139 Specifies the authentication identity.
140 This is a user\-only option.
142 .B SASL_AUTHZID <authcid>
143 Specifies the proxy authorization identity.
144 This is a user\-only option.
146 .B SASL_SECPROPS <properties>
147 Specifies Cyrus SASL security properties. The
149 can be specified as a comma-separated list of the following:
153 (without any other properties) causes the properties
154 defaults ("noanonymous,noplain") to be cleared.
157 disables mechanisms susceptible to simple passive attacks.
160 disables mechanisms susceptible to active attacks.
163 disables mechanisms susceptible to passive dictionary attacks.
166 disables mechanisms which support anonymous login.
169 requires forward secrecy between sessions.
172 requires mechanisms which pass client credentials (and allows
173 mechanisms which can pass credentials to do so).
176 specifies the minimum acceptable
177 .I security strength factor
178 as an integer approximating the effective key length used for
179 encryption. 0 (zero) implies no protection, 1 implies integrity
180 protection only, 56 allows DES or other weak ciphers, 112
181 allows triple DES and other strong ciphers, 128 allows RC4,
182 Blowfish and other modern strong ciphers. The default is 0.
185 specifies the maximum acceptable
186 .I security strength factor
189 description). The default is
192 .B maxbufsize=<factor>
193 specifies the maximum security layer receive buffer
194 size allowed. 0 disables security layers. The default is 65536.
197 If OpenLDAP is built with Transport Layer Security support, there
198 are more options you can specify. These options are used when an
200 is selected (by default or otherwise) or when the application
201 negotiates TLS by issuing the LDAP Start TLS operation.
203 .B TLS_CACERT <filename>
204 Specifies the file that contains certificates for all of the Certificate
205 Authorities the client will recognize.
207 .B TLS_CACERTDIR <path>
208 Specifies the path of a directory that contains Certificate Authority
209 certificates in separate individual files. The
211 is always used before
214 .B TLS_CERT <filename>
215 Specifies the file that contains the client certificate.
216 This is a user\-only option.
218 .B TLS_KEY <filename>
219 Specifies the file that contains the private key that matches the certificate
222 file. Currently, the private key must not be protected with a password, so
223 it is of critical importance that the key file is protected carefully. This
224 is a user\-only option.
226 .B TLS_CIPHER_SUITE <cipher-suite-spec>
227 Specifies acceptable cipher suite and preference order.
228 <cipher-suite-spec> should be a cipher specification for OpenSSL,
229 e.g., HIGH:MEDIUM:+SSLv2.
231 .B TLS_RANDFILE <filename>
232 Specifies the file to obtain random bits from when /dev/[u]random is
233 not available. Generally set to the name of the EGD/PRNGD socket.
234 The environment variable RANDFILE can also be used to specify the filename.
236 .B TLS_REQCERT <level>
237 Specifies what checks to perform on server certificates in a TLS session,
240 can be specified as one of the following keywords:
244 The client will not request or check any server certificate.
247 The server certificate is requested. If no certificate is provided,
248 the session proceeds normally. If a bad certificate is provided, it will
249 be ignored and the session proceeds normally.
252 The server certificate is requested. If no certificate is provided,
253 the session proceeds normally. If a bad certificate is provided,
254 the session is immediately terminated.
257 These keywords are equivalent. The server certificate is requested. If no
258 certificate is provided, or a bad certificate is provided, the session
259 is immediately terminated. This is the default setting.
262 .B TLS_CRLCHECK <level>
263 Specifies if the Certificate Revocation List (CRL) of the CA should be
264 used to verify if the server certificates have not been revoked. This
269 can be specified as one of the following keywords:
273 No CRL checks are performed
276 Check the CRL of the peer certificate
279 Check the CRL for a whole certificate chain
281 .SH "ENVIRONMENT VARIABLES"
284 disable all defaulting
287 path of a configuration file
290 basename of ldaprc file in $HOME or $CWD
293 Set <option-name> as from ldap.conf
297 system-wide ldap configuration file
299 .I $HOME/ldaprc, $HOME/.ldaprc
300 user ldap configuration file
303 local ldap configuration file
307 Kurt Zeilenga, The OpenLDAP Project
310 is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).
312 is derived from University of Michigan LDAP 3.3 Release.