[Samba] Moving to Samba4, DNS problems.

Aleix Dorca Josa adorca at uda.ad
Tue Sep 25 04:52:29 MDT 2012


I've spent the last days building the Samba4 RC1 and trying to move a DC from 2003 to Samba4.

I've followed the HowTo's, first to build Samba4, and then to add a domain as a backup domain controller on the Wiki. Everything seems to be working fine. My backup domain controller gets all the information from the PDC, this is LDAP, Kerberos and DNS. As suggested by a message on this list, I moved the fsmo roles to the samba4 server. All OK.

Checking for errors and stuff I found that there was no A DNS record for the backup DC on the backup DC. This means that if the /etc/resolv.conf only has an entry like:

nameserver IP_OF_THE_BDC

then everything else fails. 

'dig @BDC_IP samba4.domain.lan' returns en empty result.

Trying to replicate DNS information from the PDC always seems to end up ok but the A record is never found on the BDC.

Also, trying to demote the PDC, I get a message that that server has the 'last replicated copy' of the DNS Zones on AD, hence it seems something is not correctly moved between DC's.

Then, has anyone been able to find how to solve this?

My smb.conf has not been modified by me at all.



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