[Samba] Problem with Winbind and Windows Clients

Oliver Werner oliver.werner at kontrast.de
Fri Mar 11 07:54:51 UTC 2016


i have a permanent problem with my samba members. there lost after some times his connections to DCs and i need to restart winbind.

Also same problem with winds client that running 24x7. After few days i can not logged in.

i think thats a problem with kerberos tickets.

i have checks samba logs and found that samba member and windows client ask for new tickets and get new expiration.

in my DCs i have set

	kdc:service ticket lifetime = 1
	kdc:user ticket lifetime = 24
	kdc:renewal lifetime = 120

and Master krb5.conf looks

	default_realm = HQ.KONTRAST
	dns_lookup_realm = false
	dns_lookup_kdc = true
	ticket_lifetime = 1d
	renew_lifetime = 5d

      kdc = vl0227.hq.kontrast
      kdc = vl0230.hq.kontrast
      kdc = pl0231.hq.kontrast
      master_kdc = vl0227.hq.kontrast
      admin_server = vl0227.hq.kontrast

	.hq.kontrast = HQ.KONTRAST
	hq.kontrast = HQ.KONTRAST

	admin_server            = FILE:/var/log/kadmind.log

So what i saw was GPOs are default empty. i need for winbind configure Kerberos Policy?

kind regards

Kontrast Communication Services GmbH
Grafenberger Allee 100, 40237 Düsseldorf, Germany

Fon  +49-211-91505-500
Fax  +49-211-91505-530
www.kontrast.de <http://www.kontrast.de/>

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