Трабл: Самбу в домен.

Долгих тебе лет жизни, All!
Есть домен оффтопик2003, самба 3.0.21
Не могу ввести ее в домен. Подскажите где неправ. Линуксовая тачка в DNS домена прописана. Конфиг самбы привожу

[global]
realm = natu.local
workgroup = natu.local
netbios name = alfa
server string = Samba Server
hosts allow = 192.168. 127.
log file = /var/log/samba/log.smbd
max log size = 500
security = domain
password server = 192.168.0.2
allow trusted domains = yes
encrypt passwords = yes
smb passwd file = /etc/samba/smbpasswd
unix password sync = Yes
passwd program = /usr/bin/passwd %u
passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* %n\n
*passwd:*all*authentication*tokens*updated*successfully*
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
interfaces = 192.168.0.226
winbind uid = 10000-20000
winbind gid = 10000-20000
winbind enum groups = yes
winbind enum users = yes
[FILES]
comment = share
path = /home/alex/pub
public = no
writable = yes
valid users = DOMAIN\users
create mask = 0744

Пытаюсь завести самбу в домен:
alfa:/home/alex# net join -U Slack
Slack's password:
[2006/03/01 14:51:50, 0] libads/kerberos.c:ads_kinit_password(164)
kerberos_kinit_password ALFA$@NATU.LOCAL failed: Cannot find KDC for requested realm
[2006/03/01 14:51:50, 0] utils/net_ads.c:ads_startup(191)
ads_connect: Cannot find KDC for requested realm

Unable to find a suitable server

Unable to find a suitable server