Ldapsearch

Reference : https://www.centos.org/docs/5/html/CDS/ag/8.0/Finding_Directory_Entries-Using_ldapsearch.html
[optional_options] [optional_search_filter] [optional_list_of_attributes]
Options
-b "cn=Barbara Jensen, ou=Product Development,dc=example,dc=com" ( -b "" to search root DSE )
-D "uid=bjensen, dc=example,dc=com" ( Authentication distinguished name )
-h mozilla ( host )
-l 300 ( timelimit, nsslapd-timelimit )