Revision as of 19:18, 12 July 2015

Lightweight Directory Access Protocol

In computer networking, the Lightweight Directory Access Protocol, or LDAP ("ell-dap"), is a networking protocol for querying and modifying directory services running over TCP/IP. An LDAP directory usually follows the X.500 model: it is a tree of entries, each of which consists of a set of named attributes with values. While some services use a more complicated "forest" model, the vast majority use a simple starting point for their database organization.

An LDAP directory often reflects various political, geographic, and/or organizational boundaries, depending on the model chosen. LDAP deployments today tend to use Domain Name System (DNS) names for structuring the most simple levels of the hierarchy. Further into the directory might appear entries representing people, organizational units, printers, documents, groups of people or anything else which represents a given tree entry, or multiple entries.

Its current version is LDAPv3. LDAPv3 is specified in a series of IETF Standard Track RFCs as detailed in RFC 4510.

Interfaces

Tutorials and docs

Access control

ldapmodify

Links

FAQ

add indexes

http://forum.zentyal.org/index.php?topic=3006.0

additional info: structuralObjectClass: no user modification allowed

use slapadd instead of ldapadd, while slapd is NOT running:

slapadd -v < ldap.ldif

AttributeType inappropriate matching rule: "integerMatch"

duh

Replace LDAP database

service slapd stop
rm /var/lib/ldap/*
slapadd -l dump.ldif
chown -R openldap.openldap /var/lib/ldap
service slapd start

Change OLC config

ldapmodify -Y EXTERNAL -H ldapi:///
dn: cn=config
replace: olcLogLevel
olcLogLevel: None

CTRL + D

create a new database from ldif file

slapadd -f dump.ldif

Remember to set rights to the db storage!

add a record

ldapadd

modify a record

http://docs.sun.com/source/816-6400-10/lmodify.html

ldapmodify -x -D "cn=admin, dc=bar, dc=com" -W << EOF
dn: cn=foo, dc=bar, dc=com
changetype: modify
replace: sn
sn: new name
EOF

Or

ldapmodify -D "cn=admin,dc=bar,dc=com" -Y EXTERNAL -H ldapi:/// << EOF
..
EOF

Or even, also for reconfiguration of OLC

ldapmodify -Y EXTERNAL -H ldapi:/// < foo.ldif

change olcAccess, olcSuffix etc

I managed this changing things in following order:

olcAccess{2}
olcAccess{0}
olcRootDN
olcSuffix

EOF

add an attribute

changetype: modify
add: objectClass
objectClass: qmailUser

search for a record

http://docs.sun.com/source/816-6400-10/lsearch.html

ldapsearch -x -b  -s base '(objectclass=*)' namingContexts
ldapsearch -x -b "dc=foo, dc=com" "uid=harry"

scope?

ber_get_next on fd 12 failed errno=0 (Success)

You're probably trying to use ldapadd without -x

ber_get_next on fd 15 failed errno=11 (Resource temporarily Unavailable)

??

rootdn is always granted unlimited privileges

Error number: 0x50 (LDAP_OTHER)

Internal (implementation specific) error

You probably ran slapindex as wrong user. Set rights on the directory you find under 'directory' in slapd.conf for the user slapd runs as ( openldap on debian )

search filters

http://www.faqs.org/rfcs/rfc2254.html

view configuration in OLC

slapcat -H "ldap:///cn=config??sub?(olcDatabase=*)"

ldapsearch -Y EXTERNAL -H ldapi:/// -b cn=config

main: TLS init def ctx failed: -1

Probably no access to one of the certificate files

ldif_read_file: checksum error on "/etc/ldap/slapd.d/cn=config/olcDatabase={1}bdb.ldif"

You edited config file instead of using ldapmodify. This error will go away once you used ldapmodify on it.

Keywords

rootdn

The user/account with full access

Tools

phpldapadmin
ldapbrowser
lam
shelldap
ldapvi

Anonymous

Search

LDAP: Difference between revisions