slapd.conf(4ldap)

slapd.conf -- configuration file for slapd, the stand-alone LDAP daemon

Synopsis

/etc/slapd.conf

Description

The file /etc/slapd.conf contains configuration information for the slapd(1Mldap) daemon. This configuration file is also used by the slurpd(1Mldap) replication daemon and by the LDBM indexing utilities ldif2ldbm(1Mldap), ldif2index(1Mldap), ldif2id2entry(1Mldap), and ldif2id2children(1Mldap).

The slapd.conf file consists of a series of global configuration options that apply to slapd as a whole (including all backends), followed by zero or more database backend definitions that contain information specific to a backend instance.

The general format of slapd.conf is as follows:

   # comment - these options apply to every database 
   global configuration options 
   # first database definition & configuration options 
   database      backend 1 type 
   configuration options specific to backend 1 
   # subsequent database definitions & configuration options 
   ...

As many backend-specific sections as desired may be included. Global options can be overridden in a backend (for options that appear more than once, the last appearance in the slapd.conf file is used). Blank lines and comment lines beginning with a ``#'' character are ignored. If a line begins with white space, it is considered a continuation of the previous line.

Arguments on configuration lines are separated by white space. If an argument contains white space, the argument should be enclosed in double quotes ("). If an argument contains a double quote or a backslash (\), the character should be preceded by a backslash character.

The specific configuration options available are discussed below in the ``Global configuration options'', ``General backend options'', ``LDBM backend-specific options'', ``Shell backend-specific options'', and ``Password backend-specific options'' sections. Refer to The SLAPD and SLURPD Administrator's Guide for more details on the slapd configuration file.

Global configuration options

Options described in this section apply to all backends, unless specifically overridden in a backend definition.

access to what [ by who accesslevel ]+
Grant access (specified by accesslevel) to a set of entries and/or attributes (specified by what) by one or more requestors (specified by who). Refer to The SLAPD and SLURPD Administrator's Guide for information on using the slapd access-control mechanisms.
attribute name [name2] { bin | ces | cis | tel | dn }
Associate a syntax with an attribute name. By default, an attribute is assumed to have syntax cis. An optional alternate name can be given for an attribute. The possible syntaxes and their meanings are:

bin
binary
ces
case exact string
cis
case ignore string
tel
telephone number string
dn
distinguished name
defaultaccess { none | compare | search | read | write | delete }
Specify the default access to grant requestors not matched by any other access line. The default behavior is to grant read access.
include filename
Read additional configuration information from the given file before continuing with the next line of the current file.
loglevel integer
Specify the level at which debugging statements and operation statistics should be syslogged (currently logged to the syslogd(1M) LOG_LOCAL4 facility). Log levels are additive, and available levels are as follows:

1
trace function calls
2
debug packet handling
4
heavy trace debugging
8
connection management
16
print out packets sent and received
32
search filter processing
64
configuration file processing
128
access control list processing
256
stats log connections/operations/results
512
stats log entries sent
1024
print communication with shell backends
2048
entry parsing
objectclass name requires attrs allows attrs
Define the schema rules for the object class named name. These are used in conjunction with the schemacheck option.
referral url
Specify the referral to pass back when slapd cannot find a local database to handle a request.
schemacheck { on | off }
Turn schema checking on or off. The default is off.
sizelimit integer
Specify the maximum number of entries to return from a search operation. The default size limit is 500.
timelimit integer
Specify the maximum number of seconds (in real time) that slapd will spend answering a search request. The default time limit is 3600.

General backend options

Options in this section only apply to the configuration file section for the backend in which they are defined. They are supported by every type of backend.

database databasetype
Mark the beginning of a new database instance definition. databasetype should be one of ldbm, shell, or passwd depending on which backend will serve the database.
lastmod on | off
Controls whether slapd will automatically maintain the modifiersName, modifyTimestamp, creatorsName, and createTimestamp attributes for entries. By default, lastmod is off.
readonly on | off
This option puts the database into ``read-only'' mode. Any attempts to modify the database will return an ``unwilling to perform'' error. By default, readonly is off.
replica host=hostname[:port] "binddn=DN" bindmethod=simple [credentials=password] [srvtab=filename]
Specify a replication site for this database. Refer to The SLAPD and SLURPD Administrator's Guide for detailed information on setting up a replicated slapd directory service.
replogfile filename
Specify the name of the replication log file to log changes to. The replication log is typically written by slapd and read by slurpd. See slapd.replog(4ldap) for more information.
rootdn dn
Specify the DN of an entry that is not subject to access control or administrative limit restrictions for operations on this database.
rootpw password
Specify a password for the rootdn.
suffix dn suffix
Specify the DN suffix of queries that will be passed to this backend database. Multiple suffix lines can be given and at least one is required for each database definition.
updatedn dn
This option is only applicable in a slave slapd. It specifies the DN allowed to make changes to the replica (typically, this is the DN slurpd binds as when making changes to the replica).

LDBM backend-specific options

Options in this category only apply to the LDBM backend database. That is, they must follow a ``database ldbm'' line and come before any subsequent database lines. The LDBM backend is a high-performance database that makes extensive use of indexing and caching to speed data access.

cachesize integer
Specify the size in entries of the in-memory cache maintained by the LDBM backend database instance. The default is 1000 entries.
dbcachesize integer
Specify the size in bytes of the in-memory cache associated with each open index file. If not supported by the underlying database method, this option is ignored without comment. The default is 100000 bytes.
directory directory
Specify the directory where the LDBM files containing the database and associated indexes live. The default is /usr/tmp.
index { attr ... | default } [ pres,eq,approx,sub,none ]
Specify the indexes to maintain for the given attribute. If only an attr is given, all possible indexes are maintained.
mode integer
Specify the file protection mode that newly created database index files should have. The default is 0600.

Shell backend-specific options

Options in this category only apply to the SHELL backend database. That is, they must follow a ``database shell'' line and come before any subsequent database lines. The shell backend executes external programs to implement operations, and is designed to make it easy to tie an existing database to the slapd front-end.

bind pathname
unbind pathname
search pathname
compare pathname
modify pathname
modrdn pathname
add pathname
delete pathname
abandon pathname

These options specify the pathname of the command to execute in response to the given LDAP operation. The command given should understand and follow the input/output conventions described in Appendix B of The SLAPD and SLURPD Administrator's Guide.

Note that you need only supply configuration lines for those commands you want the backend to handle. Operations for which a command is not supplied will be refused with an ``unwilling to perform'' error.

Password backend-specific options

Options in this category only apply to the PASSWD backend database. That is, they must follow a ``database passwd'' line and come before any subsequent database lines. The PASSWD database serves up the user account information listed in the system passwd(4) file.

file filename
Specifies an alternate passwd file to use. The default is /etc/passwd.

References

Intro(3ldap), passwd(4), slapd(1Mldap), slapd.replog(4ldap), slurpd(1Mldap)

The SLAPD and SLURPD Administrator's Guide