OpenLDAP

Install on ubuntu: 

sudo apt-get install slapd ldap-utils

sudo apt-get install phpldapadmin

sudo service apache2 restart
http://host/phpldapadmin

Reference

openldap-server.html
One correction: please quote the binding dn below in bash.

OpenLDAPServer

How to change RootDN 

/etc/ldap/slapd.d/cn=config/olcDatabase={1}hdb.ldif

olcDatabase={1}hdb.ldif:olcRootDN: cn=admin,dc=example,dc=com

How to change RootPWD

• generate hash with slappasswd  
• change RootPwd using the above generated hash. 
• sudo service slapd restart

Clean Import 

• service stop slapd
• clean slapd db: rm -f /var/lib/ldap/*
• slapadd -l .ldif
• /var/lib/ldap$ sudo chown openldap:openldap * (make sure the ownership belongs to openldap)
• service start slapd

Add entries

sudo ldapadd -x -D "cn=admin,dc=example,dc=com" -W -f frontend.example.com.ldif 

(it will prompt for password)

Search

• ldapsearch -x -b '' -s base '(objectclass=*)' namingContexts
• ldapsearch -x -b 'dc=example,dc=com' '(objectclass=*)'

Install python-ldap

• sudo apt-get install build-essential python-dev libldap2-dev libssl-dev libsasl2-dev
• pip install python-ldap