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[Samba] FEDORA 28 + SAMBA 4.8.5 --must-change-at-next-login don't work




Hello,
if anybody would kindly have anything to advice, please, please - do :-)


SETUP:
Fedora 28 + Samba 4.8.5 AD (testing environment consisting of 1 Samba server and 1 joined windows machine and 1 account) :-)

PROBLEM:
the "--must-change-at-next-login" is the problematic part

after creating user, with this attribute the user is authenticated OK during FIRST Logon BUT!! when challenged to CHANGE password (as expected) he/she can not change the pw as the DOMAIN stubbornly, repeatedly says: password is EXPIRED


Replication of problem:
- install Fedora 28
- install Samba:
yum install samba samba-dc samba-krb5-printing samba-pidl samba-test samba-winbind-clients samba-winbind-krb5-locator realmd sssd oddjob oddjob-mkhomedir adcli

- DNS setting, IP address setting, turn off firewalld, turn off NetworkManager, tunr off SELinux

- provision of SAmba:
samba-tool domain provision --use-rfc2307 --interactive

- start samba and add group and user:
systemctl start samba.service

samba-tool group add --nis-domain=aufeerdesign --gid-number 1903 it

samba-tool user create long --nis-domain=aufeerdesign --login-shell=/bin/bash --unix-home=/home/long --gid-number=1903 --uid-number=8888 --must-change-at-next-login



I see in logs:


%m.log
[2018/09/12 16:30:26.284142, 1] ../lib/util/util_runcmd.c:327(samba_runcmd_io_handler) /usr/sbin/krb5kdc: sam_account_ok: Account for user 'long@AUFEERDESIGN' password must change!.


mit_kdc.log
Sep 12 16:31:14 ad01 krb5kdc[3180](info): AS_REQ (6 etypes {18 17 23 24 -135 3}) 192.168.181.181: UNKNOWN_REASON: long@AUFEERDESIGN for kadmin/changepw@AUFEERDESIGN, Password has expired
Sep 12 16:31:14 ad01 krb5kdc[3180](info): closing down fd 19




Thank You


--
*Karel Lang*
*Unix/Linux Administration*
lang@xxxxxx | +420 731 13 40 40
AUFEER DESIGN, s.r.o. | www.aufeerdesign.cz

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