[Samba] Problem with Winbind and Windows Clients

[Oliver Werner]

Here is smb.conf

[global]
       netbios name = VL0173
       security = ADS
       workgroup = HQKONTRAST
       realm = hq.kontrast

       log file = /var/log/samba/%m.log
       log level = 3

       dedicated keytab file = /etc/krb5.keytab
       kerberos method = secrets and keytab
       winbind refresh tickets = yes

       winbind trusted domains only = no
       winbind use default domain = yes
       winbind enum users  = yes
       winbind enum groups = yes
       winbind cache time = 300
       winbind refresh tickets = yes


       # Default idmap config used for BUILTIN and local accounts/groups
       idmap config *:backend = tdb
       idmap config *:range = 500-1023

       # idmap config for domain HQKONTRAST
       idmap config HQKONTRAST:backend = ad
       idmap config HQKONTRAST:schema_mode = rfc2307
       idmap config HQKONTRAST:range = 1024-99999

       # Use settings from AD for login shell and home directory
       winbind nss info = rfc2307


OLIVER WERNER
System-Administrator





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/>

Amtsgericht Düsseldorf: HRB 26934
Geschäftsführer: Joachim Fischer, Anja Grote-Lutter, Leontine van der Vlist

 <https://www.facebook.com/kontrast.communication>     <https://twitter.com/KONTRAST_de>     <http://www.xing.com/companies/kontrastcommunicationservicesgmbh>     <http://www.linkedin.com/company/kontrast-communication-services-gmbh>     <https://vimeo.com/kontrastcs>     <http://instagram.com/kontrast_de>

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Please consider the environment and only print this if required.


> Am 11.03.2016 um 09:01 schrieb L.P.H. van Belle <belle at bazuin.nl>:
> 
> Please  Post your member smb.conf.
> 
> But probely your missing.
>   winbind refresh tickets = yes
> and/or
>   dedicated keytab file = /etc/krb5.keytab
>   kerberos method = secrets and keytab
> 
> 
> greetz,
> 
> Louis
> 
> 
> 
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Oliver Werner
>> Verzonden: vrijdag 11 maart 2016 8:55
>> Aan: samba at lists.samba.org
>> Onderwerp: [Samba] Problem with Winbind and Windows Clients
>> 
>> Hi,
>> 
>> 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
>> 
>> [libdefaults]
>> 	default_realm = HQ.KONTRAST
>> 	dns_lookup_realm = false
>> 	dns_lookup_kdc = true
>> 	ticket_lifetime = 1d
>> 	renew_lifetime = 5d
>> 
>> [realms]
>>   HQ.KONTRAST = {
>>      kdc = vl0227.hq.kontrast
>>      kdc = vl0230.hq.kontrast
>>      kdc = pl0231.hq.kontrast
>>      master_kdc = vl0227.hq.kontrast
>>      admin_server = vl0227.hq.kontrast
>>   }
>> 
>> [domain_realm]
>> 	.hq.kontrast = HQ.KONTRAST
>> 	hq.kontrast = HQ.KONTRAST
>> 
>> [logging]
>> 	kdc = SYSLOG:INFO:DAEMON
>> 	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
>> OLIVER WERNER
>> System-Administrator
>> 
>> 
>> 
>> 
>> 
>> 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/>
>> 
>> Amtsgericht Düsseldorf: HRB 26934
>> Geschäftsführer: Joachim Fischer, Anja Grote-Lutter, Leontine van der
>> Vlist
>> 
>> <https://www.facebook.com/kontrast.communication>
>> <https://twitter.com/KONTRAST_de>
>> <http://www.xing.com/companies/kontrastcommunicationservicesgmbh>
>> <http://www.linkedin.com/company/kontrast-communication-services-gmbh>
>> <https://vimeo.com/kontrastcs>     <http://instagram.com/kontrast_de>
>> 
>> Note: The information contained in this message may be privileged and
>> confidential and protected from disclosure. If the reader of this message
>> is not the intended recipient, or an employee or agent responsible for
>> delivering this message to the intended recipient, you are hereby notified
>> that any dissemination, distribution or copying of this communication is
>> strictly prohibited. If you have received this communication in error,
>> please notify us immediately by replying to the message and deleting it
>> from your computer.
>> 
>> Please consider the environment and only print this if required.
>> 
>> 
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> 
> 
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