root@amahoro:~# ldapmodify -x -W -D 'cn=Manager,dc=amahoro,dc=bi'
Enter LDAP Password:
dn: cn=Students,ou=Groups,dc=amahoro,dc=bi
changetype: modify
add: objectClass
objectClass: posixGroup
objectClass: sambaGroupMapping
sambaSID: S-1-5-21-251852451-2940789264-3475694606
sambaGroupType: 5

ldapmodify: wrong attributeType at line 6, entry "cn=Students,ou=Groups,dc=amahoro,dc=bi"