missing /usr/local/samba/private/dns

Daniele Dario d.dario76 at gmail.com
Fri Mar 30 07:03:19 MDT 2012


On Tue, 2012-03-27 at 09:27 +1100, Amitay Isaacs wrote: 
> On Mon, Mar 26, 2012 at 10:44 PM, Daniele Dario <d.dario76 at gmail.com> wrote:
> > Hi Amitay,
> >
> > On Tue, 2012-03-13 at 20:03 +1100, Amitay Isaacs wrote:
> >> Hi Daniele,
> >>
> >> On Tue, Mar 13, 2012 at 6:40 PM, Daniele Dario <d.dario76 at gmail.com> wrote:
> >> > Hi Amitay,
> >> >
> >> > On Tue, 2012-03-13 at 12:13 +1100, Amitay Isaacs wrote:
> >> >> Hi Greg,
> >> >>
> >> >> On Sat, Mar 10, 2012 at 2:45 PM, Greg Dickie <greg at justaguy.ca> wrote:
> >> >> >
> >> >> > Sounds great. Totally ready to be the guinea pig, just let me know what
> >> >> > you need. One small question though. Is the ultimate goal to use a
> >> >> > builtin DNS server? I thought this bind9 implementation was pretty cool.
> >> >> > Is it missing anything that's required?
> >> >> >
> >> >> > Thanks for the quick response guys,
> >> >> > Greg
> >> >>
> >> >> I have updated samba_upgradedns script now to handle upgrading dns
> >> >> provision even after domain join. The new code is in my dns-wip
> >> >> branch.
> >> >>
> >> >>   git://git.samba.org/amitay/samba.git
> >> >>
> >> >> You can run samba_upgradedns multiple times without any side effects.
> >> >> Let me know if that works for you.
> >> >>
> >> >> The ultimate goal is to use built-in dns server, so that samba does
> >> >> not have to depend on external programs (BIND) for running. For time
> >> >> being, BIND9 option is supported till built-in dns server becomes
> >> >> fully operational.
> >> >>
> >> >> Amitay.
> >> >
> >> > do you mean that is possible to use upgradedns to provision the dns
> >> > partitions on a samba4 DC already joined to a domain?
> >>
> >> Yes, that's correct. You can run samba_upgradedns on any provision and
> >> it should upgrade it to use AD based backend.
> >>
> >> >
> >> > If I catched I will use it on my secondary DC (primary is also samba4)
> >> > to have also a secondary DNS. Does it also start replication of the dns
> >> > partitions between the DCs?
> >>
> >> DNS partitions do get replicated, but you might have to restart the
> >> secondary DC to get them correctly replicating. There is an issue
> >> regarding msDs-hasMasterNCs attribute, which has yet to be resolved. I
> >> haven't tried to set up a DNS server on a secondary DC using
> >> replicated DNS as yet.
> >>
> >> > If yes, which is the best way to proceed?
> >> > My idea is to upgrade secondary DC to latest git source, pull your
> >> > branch to obtain upgradedns than run it from the secondary DC.
> >>
> >> You can use my dns-wip branch. First make sure that the partitions are
> >> getting replicated. Once you confirm that, run samba_dnsupgrade on the
> >> secondary DC to setup a AD database for BIND in dns/ directory.
> >> Finally run BIND with DLZ on secondary DC. Obviously this hasn't been
> >> tested, so your feedback is most welcome. :)
> >>
> >> Amitay.
> >
... 
> You shouldn't have to install anything manually. All the binaries and
> shared libraries are re-linked for install with correct rpath. So do
> not copy any binaries/libraries from the bin/ in source directory to
> install locations. Use make install to install all the files. If
> something is not being installed correctly then it might be a problem
> that needs to be fixed.
> 
> Amitay.

OK,
I found that the problem was that problems in loading modules from the
upgradedns script was due to the fact that PYTHONPATH does not
contain /usr/local/samba/lib/python2.7/site-packages. Adding the path of
the modules all seems to start.

Anyway, with Version 4.0.0alpha19-GIT-e36622f this is what I get

[root at kdc02:/usr/local/samba/private/dns]# samba_upgradedns 
lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf
params.c:pm_process() - Processing configuration file
"/usr/local/samba/etc/smb.conf"
Reading domain information
lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf
params.c:pm_process() - Processing configuration file
"/usr/local/samba/etc/smb.conf"
Looking up IPv4 addresses
Looking up IPv6 addresses
DNS accounts already exist
No zone file /usr/local/samba/private/dns/saitelitalia.local.zone
DNS records will be automatically created
Creating DNS partitions
DN: DC=DomainDnsZones,DC=saitelitalia,DC=local is a NC
Traceback (most recent call last):
  File "/usr/local/samba/sbin/samba_upgradedns", line 355, in <module>
    dnsadmins_sid)
  File
"/usr/local/samba/lib/python2.7/site-packages/samba/provision/sambadns.py", line 876, in create_dns_partitions
    names.configdn, names.serverdn)
  File
"/usr/local/samba/lib/python2.7/site-packages/samba/provision/sambadns.py", line 206, in setup_dns_partitions
    "SECDESC"      : b64encode(descriptor)
  File
"/usr/local/samba/lib/python2.7/site-packages/samba/provision/common.py", line 52, in setup_add_ldif
    ldb.add_ldif(data, controls)
  File "/usr/local/samba/lib/python2.7/site-packages/samba/__init__.py",
line 224, in add_ldif
    self.add(msg, controls)
_ldb.LdbError: (68, 'ldb_wait: Entry already exists (68)')

Daniele 



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