[Samba] dns update with bind9 is not working

Patrik alabard at gmail.com
Tue May 18 13:56:36 UTC 2021 

Ok, i fixed it, the kerberos file was permissions was wrong, was missing
reverse zone in samba ac and recursion bind was bad as well. thanks for the
help!


*Patrik*
WWW <https://patrikx3.com> | GitHub <https://github.com/patrikx3/> | NPM
<https://www.npmjs.com/~patrikx3> | Corifeus <https://corifeus.com> | +36
20 342 8046



On Tue, May 18, 2021 at 3:21 PM L.P.H. van Belle via samba <
samba at lists.samba.org> wrote:

> for X in your number of DC"s.
> do..
> dig a hostname_of_DC.$(hostname -d)
> dig -x ip_of_DC
> done
>
> are these all correct ?
>
>
>
>
> Van: Patrik [mailto:alabard at gmail.com]
> Verzonden: dinsdag 18 mei 2021 14:20
> Aan: L.P.H. van Belle
> CC: samba at lists.samba.org
> Onderwerp: Re: [Samba] dns update with bind9 is not working
>
>
>
> I fixed, the reverse zone, now i get this error:
> May 18 14:19:09 p3x-dc samba[45245]:   /usr/sbin/samba_dnsupdate:
> raise Exception("Timeout while waiting to contact a working DNS server
> while looking for %s as %s" % (d, normalised_name))
> May 18 14:19:09 p3x-dc samba[45245]: [2021/05/18 14:19:09.895807,  0]
> ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> May 18 14:19:09 p3x-dc samba[45245]:   /usr/sbin/samba_dnsupdate:
> Exception: Timeout while waiting to contact a working DNS server while
> looking for A server.p3x-dc.patrikx3.com 192.168.78.20 as
> server.p3x-dc.patrikx3.com.
> May 18 14:19:09 p3x-dc samba[45245]: [2021/05/18 14:19:09.913061,  0]
> ../../source4/dsdb/dns/dns_update.c:85(dnsupdate_nameupdate_done)
>
>
>
>
>
> Patrik
>
> WWW | GitHub | NPM | Corifeus | +36 20 342 8046
>
>
>
>
>
>
>
>
>
>
>
> On Tue, May 18, 2021 at 2:05 PM L.P.H. van Belle via samba <
> samba at lists.samba.org> wrote:
>
> Your resolv.conf should look like this.
>
> echo "search $(hostname -d) patrikx3.com corifeus.com" >
> /etc/resolv.conf.new
> echo "nameserver $(hostname -i)" >> /etc/resolv.conf.new
> Add the other nameserver dc's  ip's below that last line
>
> Then
> cp /etc/resolv.conf,{.old}
> Do this per DC.
>
> Reverse zone :
> https://wiki.samba.org/index.php/DNS_Administration
>
> Greetz,
>
> Louis
>
>
> > -----Oorspronkelijk bericht-----
> > Van: samba [mailto:samba-bounces at lists.samba.org] Namens
> > Patrik via samba
> > Verzonden: dinsdag 18 mei 2021 13:38
> > Aan: Rowland penny
> > CC: samba at lists.samba.org
> > Onderwerp: Re: [Samba] dns update with bind9 is not working
> >
> > after i changed the resolve to be like this:
> > root at server:/usr/lib/x86_64-linux-gnu/samba# cat /etc/resolv.conf c
> > #nameserver 8.8.8.8
> > search p3x-dc.patrikx3.com
> > search patrikx3.com
> > search corifeus.com
> > nameserver 0.0.0.0
> > namesearch ::0
>
>
> >
> >
> > now i get this error, it is a bit better:
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:   File
> > "/usr/lib/python3/dist-packages/dns/resolver.py", line 950, in
> > _compute_timeout
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.935647,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:     raise
> > Timeout(timeout=duration)
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.935782,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:   /usr/sbin/samba_dnsupdate:
> > dns.exception.Timeout: The DNS operation timed out after
> > 15.145985126495361
> > seconds
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.935868,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:   /usr/sbin/samba_dnsupdate:
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.935934,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate: During
> > handling of the above exception, another exception occurred:
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.935998,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:   /usr/sbin/samba_dnsupdate:
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936058,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate: Traceback
> > (most recent call last):
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936119,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:   File
> > "/usr/sbin/samba_dnsupdate", line 848, in <module>
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936190,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:     elif
> > not check_dns_name(d):
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936252,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:   File
> > "/usr/sbin/samba_dnsupdate", line 300, in check_dns_name
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936482,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > /usr/sbin/samba_dnsupdate:     raise
> > Exception("Timeout while waiting to contact a working DNS server while
> > looking for %s as %s" % (d, normalised_name))
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.936657,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../lib/util/util_runcmd.c:352(samba_runcmd_io_handler)
> > May 18 13:31:18 p3x-dc samba[22451]:   /usr/sbin/samba_dnsupdate:
> > Exception: Timeout while waiting to contact a working DNS server while
> > looking for A server.p3x-dc.patrikx3.com 192.168.78.20 as
> > server.p3x-dc.patrikx3.com.
> > May 18 13:31:18 p3x-dc samba[22451]: [2021/05/18 13:31:18.953754,  0,
> > pid=22451, effective(0, 0), real(0, 0)]
> > ../../source4/dsdb/dns/dns_update.c:85(dnsupdate_nameupdate_done)
> > May 18 13:31:18 p3x-dc samba[22451]:
> > dnsupdate_nameupdate_done: Failed
> > DNS update with exit code 1
> >
> >
> > *Patrik*
> > WWW <https://patrikx3.com> | GitHub
> > <https://github.com/patrikx3/> | NPM
> > <https://www.npmjs.com/~patrikx3> | Corifeus
> > <https://corifeus.com> | +36
> > 20 342 8046
> >
> >
> >
> > On Tue, May 18, 2021 at 12:03 PM Rowland penny via samba <
> > samba at lists.samba.org> wrote:
> >
> > > On 18/05/2021 10:40, Patrik via samba wrote:
> > > > As I start the bind9 service all work it shows:
> > > > May 18 11:32:49 p3x-dc named[515735]: Loading 'AD DNS
> > Zone' using driver
> > > > dlopen
> > > > May 18 11:32:49 p3x-dc named[515735]: samba_dlz: started for DN
> > > > DC=p3x-dc,DC=patrikx3,DC=com
> > > > May 18 11:32:49 p3x-dc named[515735]: samba_dlz: starting
> > configure
> > > > May 18 11:32:49 p3x-dc named[515735]: samba_dlz:
> > configured writeable
> > > zone '
> > > > p3x-dc.patrikx3.com'
> > > > May 18 11:32:49 p3x-dc named[515735]: samba_dlz:
> > configured writeable
> > > zone
> > > > '_msdcs.p3x-dc.patrikx3.com'
> > > > May 18 11:32:49 p3x-dc named[515735]: none:102:
> > 'max-cache-size 90%' -
> > > > setting to 28633MB (out of 31814MB)
> > > > May 18 11:32:49 p3x-dc named[515735]: obtaining root key for view
> > > > internal-enp1s0f3 from '/etc/bind/bind.keys'
> > > > May 18 11:32:49 p3x-dc named[515735]: set up managed keys
> > zone for view
> > > > internal-enp1s0f3, file
> > > >
> > '5674904fa710122a641c7076461c76afc1eb2059904e3c9151796da905312
> > 484.mkeys'
> > > > May 18 11:32:49 p3x-dc named[515735]: automatic empty zone: view
> > > > internal-enp1s0f3: 10.IN-ADDR.ARPA
> > > >
> > > > But as I restart the samba active directory. i get this error:
> > > > May 18 11:33:53 p3x-dc samba[516177]: [2021/05/18
> > 11:33:53.188152,  0]
> > > > ../../source4/dsdb/dns/dns_update.c:85(dnsupdate_nameupdate_done)
> > > > May 18 11:33:53 p3x-dc samba[516177]:
> > dnsupdate_nameupdate_done: Failed
> > > > DNS update with exit code 110
> > > >
> > > > I missed this error as in my samba config i removed the dns_update
> > > service,
> > > > and i think i was getting the old ip address as the dns
> > update service
> > > was
> > > > missing. Now, I added this service into samba config, i
> > get the above
> > > error.
> > > >
> > > > What it could be?
> > >
> > >
> > > Can you post your named.conf files, I do not think yours are set up
> > > correctly, you do not seem to have 'empty-zones-enable no'
> > for one thing.
> > >
> > > Rowland
> > >
> > >
> > >
> > > --
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> >
>
>
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