root@amahoro:/etc/ldap# ldapadd -x -W -D 'cn=Manager,dc=amahoro,dc=bi' -f cn.ldif
Enter LDAP Password:
adding new entry "cn=Students,ou=Groups,dc=amahoro,dc=bi"
ldap_add: Other (e.g., implementation specific) error (80)
	additional info: index generation failed