apt-get install ldap-utils

LdapSearch examples

The following examples are taking from various ldapsearch queries on Small Business Server 2003.

Get a user from Active Directory

ldapsearch -x -LLL -D 'CN=Administrator,CN=Users,DC=Domain,DC=local' -W -H ldap://ad.example.com:389 -b 'OU=SBSUsers,OU=Users,OU=MyBusiness,DC=Domain,DC=local' -s sub '(sAMAccountName=jean-kevin)'

the “-x” switch enables simple authentication, instead of SASL

-LLL is just a display switch, to get LDIF information only, without comments

-D is the DN of the user used to bind to the LDAP server, -W will prompt for password on the command line

-H is the address of the LDAP server

-b is the base of the search (where it will start), can be anywhere in the tree. Lower is better to filter the search.

-s sub indicates we want to search in the leaves

the last parameter is the filter in ldap filter format

Get the security groups a user is a member of

ldapsearch -x -LLL -D 'CN=Administrator,CN=Users,DC=Domain,DC=local' -W -H ldap://ad.example.com:389 -b 'OU=Security Groups,OU=MyBusiness,DC=Domain,DC=local' -s sub '(&(objectClass=group)(member=CN=Jean-Kevin De La Motte,OU=SBSUsers,OU=Users,OU=MyBusiness,DC=Domain,DC=local))'