NSS-LDAP
検索フィルター

passwd
    (&(objectclass=posixAccount)(uid=%s))
    (&(objectclass=posixAccount)(uidNumber=%d))
group
    (&(objectclass=posixGroup)(cn=%s))
    (&(objectclass=posixGroup)(gidNumber=%d))
shadow
    (&(objectclass=shadowAccount)(uid=%s))

次のindexが有効 (slapd.conf)
   index objectclass eq
   index uid,uidNumber,cn,gidNumber eq