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))'