My checklist:
1. RTFM slapo-ppolicy: done, 3 times;
2. check openldap version: 2.4, newly installed on Gentoo Linux;
3. check ppolicy overlay successfully loaded and being used: must be,
because operational attribute like pwdFailureTime was maintained;
4. pwdAttribute setting: correct, value is "userPassword";
5. pwdCheckQuality: correct, value is 2 (server always check password
syntax);
6. pwdMinLength: correct, value is 6, server do not accept password
short than 6 character;
7. ppolicy_default: correctly set, because change pwdMaxFailure on
default entry does have effect;
8. the entry being operated doesn't have pwdPolicySubentry, so
default should be applied: correct;
9. slapd server was restarted after all above check;
Test result: Still doesn't work:
$ldappasswd -vD uid=admin,st=jiangxi,o=LGOP -x -w secret -s 13456 ou=吉安市,st=jiangxi,o=LGOP
ldap_initialize( <DEFAULT> )
Result: Success (0)
(expected not successful here because new password was too short)
I am stuck here. Do I miss something on my checklist?