[Samba] Problem with Winbind and Windows Clients

Oliver Werner
Fri, 11 Mar 2016 07:54:51 -0000

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





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