[Samba] named will not start after upgrade of CentOS

[Marco Coli]

Il 15/05/2018 17:01, Rowland Penny via samba ha scritto:
> On Tue, 15 May 2018 16:47:39 +0200
> Marco Coli <marco.coli.gm at gmail.com> wrote:
> 
>>
>>
>> Il 15/05/2018 16:34, Rowland Penny via samba ha scritto:
>>> On Tue, 15 May 2018 15:54:16 +0200
>>> Marco Coli <marco.coli.gm at gmail.com> wrote:
>>>
>>>>
>>>> Hello, the message is exactly the same:
>>>> mag 15 11:30:20 mail.magigas.local named[30186]: Loading 'AD DNS
>>>> Zone' using driver dlopen
>>>> mag 15 11:30:20 mail.magigas.local named[30186]: dlz_dlopen of 'AD
>>>> DNS Zone' failed
>>>> mag 15 11:30:20 mail.magigas.local named[30186]: SDLZ driver failed
>>>> to load. mag 15 11:30:20 mail.magigas.local named[30186]: DLZ
>>>> driver failed to load. mag 15 11:30:20 mail.magigas.local
>>>> named[30186]: loading configuration: out of memory
>>>> mag 15 11:30:20 mail.magigas.local named[30186]: exiting (due to
>>>> fatal error)
>>>> process exited, code=exited status=1
>>>> mag 15 11:30:20 mail.magigas.local systemd[1]: named.service:
>>>> control mag 15 11:30:20 mail.magigas.local systemd[1]: Failed to
>>>> start Berkeley Internet Name Domain (DNS).
>>>> mag 15 11:30:20 mail.magigas.local systemd[1]: Unit named.service
>>>> entered failed state.
>>>> mag 15 11:30:20 mail.magigas.local systemd[1]: named.service
>>>> failed.
>>>>
>>>> Here is named.conf (at the end I have other zones external to AD):
>>>>
>>>
>>> A couple of comments, I personally wouldn't have any zones other
>>> than the AD zones in named conf. You should forward anything
>>> outside the AD domain to another dns server and talking about
>>> forwarders, you definitely do not 'forward first'.
>>>
>>> Try reading this:
>>>
>>> https://wiki.samba.org/index.php/BIND9_DLZ_DNS_Back_End
>>>
>>> It might help
>>>
>>> Rowland
>>
>> Ok, thank for your comments, but the problem is not related to this
>> aspects. If I remove (prior to the upgrade) all 'aliens' zones, after
>> the upgrade the problem is the same (I tested before, I tried to
>> 'strip out' named.conf) I will try to remove 'forward first' as well,
>> and I will let you know.
>>
>> The problem seems related to some package updated. If I upgrade
>> sernet-samba alone to sernet-samba-ad-4.8.1-9.el7.x86_64 (and restart
>> the service, of course), all is ok, but when I update all others
>> packages, hell on earth (earth=samba)...
>>
>> Any clue about wich rpm can be involved? Kernel is out of the picture,
>> because the problem is present immediately after upgrade, before
>> reboot in new kernel (but reboot does not help)...
> 
> Haven't a clue, I do not use such an ossified distro, I prefer mine a
> bit more recent ;-)

Which is? :-)

> However, if it works before you upgrade the distro packages, but not
> after, then it does seem likely it is something to do with at least
> one of the distro packages, possibly Bind9, but it could be anything  

As soon as I will have some time (!) I will try to narrow down the
package involved doing selective upgrade on a test machine... Bind is
top of the guilty list!