LDAP Server

Installation

$ sudo apt-get --yes install slapd ldap-utils


Configuration

$ sudo gedit /etc/default/slapd
SLAPD_CONF=/etc/ldap/slapd.conf

$ sudo rm -r /etc/ldap/slapd.d

$ sudo gedit /etc/ldap/slapd.conf
# This is the main slapd configuration file. See slapd.conf for more
# info on the configuration options.

#######################################################################
# Global Directives:

# Features to permit
# allow bind_v2

# Schema and objectClass definitions
include         /etc/ldap/schema/core.schema
include         /etc/ldap/schema/cosine.schema
include         /etc/ldap/schema/nis.schema
include         /etc/ldap/schema/inetorgperson.schema

# Where the pid file is put. The init.d script
# will not stop the server if you change this.
pidfile         /var/run/slapd/slapd.pid

# List of arguments that were passed to the server
argsfile        /var/run/slapd/slapd.args

# Read slapd.conf(5) for possible values
loglevel        none

# Where the dynamically loaded modules are stored
modulepath    /usr/lib/ldap
moduleload    back_hdb

# The maximum number of entries that is returned for a search operation
sizelimit 500

# The tool-threads parameter sets the actual amount of cpu's that is used
# for indexing.
tool-threads 1

#######################################################################
# Specific Backend Directives for hdb:
# Backend specific directives apply to this backend until another
# 'backend' directive occurs
backend        hdb

#######################################################################
# Specific Backend Directives for 'other':
# Backend specific directives apply to this backend until another
# 'backend' directive occurs
#backend        <other>
database config
#######################################################################
# Specific Directives for database #1, of type hdb:
# Database specific directives apply to this databasse until another
# 'database' directive occurs
database        hdb

# The base of your directory in database #1
suffix  "dc=linuxtest,dc=huree"

# rootdn directive for specifying a superuser on the database. This is needed
# for syncrepl.
rootdn  "cn=admin,dc=linuxtest,dc=huree"
rootpw  abc123

# Where the database file are physically stored for database #1
directory       "/var/lib/ldap"

# The dbconfig settings are used to generate a DB_CONFIG file the first
# time slapd starts.  They do NOT override existing an existing DB_CONFIG
# file.  You should therefore change these settings in DB_CONFIG directly
# or remove DB_CONFIG and restart slapd for changes to take effect.

# For the Debian package we use 2MB as default but be sure to update this
# value if you have plenty of RAM
dbconfig set_cachesize 0 2097152 0

# Sven Hartge reported that he had to set this value incredibly high
# to get slapd running at all. See http://bugs.debian.org/303057 for more
# information.

# Number of objects that can be locked at the same time.
dbconfig set_lk_max_objects 1500
# Number of locks (both requested and granted)
dbconfig set_lk_max_locks 1500
# Number of lockers
dbconfig set_lk_max_lockers 1500

# Indexing options for database #1
index           objectClass eq

# Save the time that the entry gets modified, for database #1
lastmod         on

# Checkpoint the BerkeleyDB database periodically in case of system
# failure and to speed slapd shutdown.
checkpoint      512 30

# Where to store the replica logs for database #1
# replogfile    /var/lib/ldap/replog

# The userPassword by default can be changed
# by the entry owning it if they are authenticated.
# Others should not be able to see it, except the
# admin entry below
# These access lines apply to database #1 only
# acl specific for phamm

access to attrs=userPassword,shadowLastChange
    by dn="cn=admin,dc=linuxtest,dc=huree"  write
        by anonymous auth
        by self write
        by * none

access to *
       by dn="cn=admin,dc=linuxtest,dc=huree" write
        by * read

access to dn.base="" by * read

# For Netscape Roaming support, each user gets a roaming
# profile for which they have write access to
#access to dn=".*,ou=Roaming,o=morsnet"
#        by dn="cn=admin,dc=yourdomain,dc=tld" write
#        by dnattr=owner write

#######################################################################
# Specific Directives for database #2, of type 'other' (can be hdb too):
# Database specific directives apply to this databasse until another
# 'database' directive occurs
#database        <other>

# The base of your directory for database #2
#suffix        "dc=debian,dc=org"



Populating LDAP

$ sudo gedit /etc/ldap/init.ldif
dn: dc=linuxtest,dc=huree
objectClass: dcObject
objectClass: organizationalUnit
dc: linuxtest
ou: My Example File

dn: cn=admin,dc=linuxtest,dc=huree
objectClass: simpleSecurityObject
objectClass: organizationalRole
cn: admin
description: LDAP administrator
userPassword: abc123

$ sudo /etc/init.d/slapd stop

$ sudo rm -rf /var/lib/ldap/*

$ sudo slapadd -v -l /etc/ldap/init.ldif

$ sudo chown -R openldap:openldap /var/lib/ldap

$ sudo /etc/init.d/slapd start

$ ldapsearch -xLLL -b "dc=linuxtest,dc=huree"


LDAP Authentication

$ sudo apt-get install libpam-ldap libnss-ldap nss-updatedb libnss-db ldap-auth-client ldap-auth-config

$ sudo gedit /etc/ldap/ldap.conf
host 127.0.0.1

BASE dc=linuxtest,dc=huree
URI ldap://linuxtest.huree

rootbinddn cn=admin,dc=linuxtest,dc=huree
bind_policy soft

$ sudo gedit /etc/nsswitch.conf
passwd: files ldap
group:  files ldap
shadow: files ldap

$ sudo gedit /etc/pam.d/common-account
account sufficient pam_ldap.so
account required pam_unix.so

$ sudo gedit /etc/pam.d/common-session
session sufficient pam_ldap.so
session required pam_unix.so

$ sudo gedit /etc/pam.d/common-auth
auth sufficient pam_ldap.so
auth required pam_unix.so nullok_secure use_first_pass

$ sudo gedit /etc/pam.d/common-password
password sufficient pam_ldap.so
password required pam_unix.so nullok obscure min=4 max=8 md5


Creating User

$sudo mkdir /export/banana
$sudo chown -R banana.users /export/banana
$sudo chmod -R 0700 /export/banana


Backup LDAP database

$ sudo /usr/sbin/slapcat -v -n 1 -l /etc/ldap/backup.ldif


Restore LDAP database

$ sudo /etc/init.d/slapd stop

$ sudo rm -rf /var/lib/ldap/*

$ sudo slapadd -v -l /etc/ldap/backup.ldif

$ sudo chown -R openldap:openldap /var/lib/ldap

$ sudo /etc/init.d/slapd restart


Creating LDAP database

$ sudo gedit /etc/ldap/init.ldif
dn: dc=jason,dc=huree
objectClass: dcObject
objectClass: organizationalUnit
dc: jason
ou: My Example File

dn: cn=admin,dc=jason,dc=huree
objectClass: simpleSecurityObject
objectClass: organizationalRole
cn: admin
description: LDAP administrator
userPassword: ******

dn: dc=Users,dc=jason,dc=huree
objectClass: domain
dc: Users

dn: dc=Groups,dc=jason,dc=huree
objectClass: domain
dc: Groups

dn: uid=apple,dc=jason,dc=huree
cn: apple
uid: apple
uidNumber: 1001
loginShell: /bin/bash
homeDirectory: /export/apple
gidNumber: 100
userPassword:
objectClass: posixAccount
objectClass: shadowAccount
objectClass: person
objectClass: inetOrgPerson
gecos: apple
sn: apple

dn: uid=apple,dc=Users,dc=jason,dc=huree
cn: apple
uid: apple
uidNumber: 1001
loginShell: /bin/bash
homeDirectory: /export/apple
gidNumber: 100
userPassword:
objectClass: posixAccount
objectClass: shadowAccount
objectClass: person
objectClass: inetOrgPerson
shadowLastChange: 15094
gecos: apple
sn: apple

dn: uid=banana,dc=jason,dc=huree
cn: banana
uid: banana
uidNumber: 1002
loginShell: /bin/bash
homeDirectory: /export/banana
gidNumber: 100
userPassword:
objectClass: posixAccount
objectClass: shadowAccount
objectClass: person
objectClass: inetOrgPerson
gecos: banana
sn: banana

dn: uid=banana,dc=Users,dc=jason,dc=huree
cn: banana
uid: banana
uidNumber: 1002
loginShell: /bin/bash
homeDirectory: /export/banana
gidNumber: 100
userPassword:
objectClass: posixAccount
objectClass: shadowAccount
objectClass: person
objectClass: inetOrgPerson
shadowLastChange: 15094
gecos: banana
sn: banana


$ sudo /etc/init.d/slapd stop

$ sudo rm -rf /var/lib/ldap/*

$ sudo slapadd -v -l /etc/ldap/init.ldif

$ chown -R openldap:openldap /var/lib/ldap

$ /etc/init.d/slapd restart