[Samba] DNS Suddenly breaking
lingpanda101 at gmail.com
lingpanda101 at gmail.com
Thu Jun 30 13:52:57 UTC 2016
On 6/30/2016 9:41 AM, Garland McAlexander wrote:
> Hosts:
>
> 127.0.0.1 localhost localhost.localdomain localhost4
> localhost4.localdomain4
> ::1 localhost localhost.localdomain localhost6
> localhost6.localdomain6
> 192.168.1.235 bus-ny-dc-01.domain.domain.com
> <http://bus-ny-dc-01.domain.domain.com> bus-ny-dc-01
>
>
> Resolv:
>
> # Generated by NetworkManager
> search domain.domain.com <http://domain.domain.com>
> nameserver 192.168.1.236
> nameserver 192.168.1.235
>
> Smb.conf:
>
> # Global parameters
> [global]
> workgroup = DOMAIN
> realm = DOMAIN.DOMAIN.COM <http://DOMAIN.DOMAIN.COM>
> netbios name = BUS-NY-DC-01
> server role = active directory domain controller
> dns forwarder = 8.8.8.8
> printing = bsd
> printcap name = /dev/null
>
> [netlogon]
> path = /var/lib/samba/sysvol/domain.domain.com/scripts
> <http://domain.domain.com/scripts>
> read only = No
>
> [sysvol]
> path = /var/lib/samba/sysvol
> read only = No
>
>
>
> On Thu, Jun 30, 2016 at 9:36 AM, lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com> <lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com>> wrote:
>
> On 6/30/2016 9:25 AM, Garland McAlexander wrote:
>
> Yes, it's set up with 8.8.8.8
>
> I'm able to ping it without issues, jut not able to resolve
> anything
> externally.
>
> On Thu, Jun 30, 2016 at 9:09 AM, mathias dufresne
> <infractory at gmail.com <mailto:infractory at gmail.com>>
> wrote:
>
> To get recursion working with internal DNS you only need
> to set up:
> dns forwarder = <IP of your main DNS>
>
> Is it configured?
>
> If yes and packets can go from your broken DC to "your
> main DNS" using TCP
> and also UDP, there is an issue.
>
> 2016-06-30 14:58 GMT+02:00 Garland McAlexander
> <garland at linear.nyc>:
>
> It's samba internal DNS. Only one DNS zone, and it's
> domain.domain.tld.
> It'll function perfectly, and then cease to function
> at a random time.
>
> On Thu, Jun 30, 2016 at 5:31 AM, Mueller
> <mueller at tropenklinik.de
> <mailto:mueller at tropenklinik.de>> wrote:
>
> What kind of DNS, bind or internal?
> With bind an samba 4.3.4 I have an issue and I
> have to restart bind an
> avahi:
> s4slave named-sdb[8750]: error (connection
> refused) resolving '
> thefreelanceforum.com/AAAA/IN
> <http://thefreelanceforum.com/AAAA/IN>':
> 192.12.94.30#53.
>
> Only a restart of bind resolves this.
>
>
> EDV Daniel Müller
>
> Leitung EDV
> Tropenklinik Paul-Lechler-Krankenhaus
> Paul-Lechler-Str. 24
> 72076 Tübingen
> Tel.: 07071/206-463, Fax: 07071/206-499
> Email: mueller at tropenklinik.de
> <mailto:mueller at tropenklinik.de>
> www.tropenklinik.de <http://www.tropenklinik.de>
> www.bauen-sie-mit.tropenklinik.de
> <http://www.bauen-sie-mit.tropenklinik.de>
>
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: Garland McAlexander
> [mailto:garland at linear.nyc
> <mailto:garland at linear.nyc>]
> Gesendet: Donnerstag, 30. Juni 2016 10:52
> An: samba at lists.samba.org
> <mailto:samba at lists.samba.org>
> Betreff: [Samba] DNS Suddenly breaking
>
> Hi All,
>
> I've got a newly created Samba4 domain. I'm
> running into a strange
>
> issue
>
> where my internal DNS on my first domain
> controller is "breaking"
>
> causing
>
> it to not resolve any external hosts. It'll still
> resolve internal hosts
> without issue. This is only on the first DC, the
> second DC is running
> perfectly fine and can access external hosts
> without issue.
>
> There is absolutely NOTHING in the logs about
> this. I cannot find where
> this is going wrong, and sometimes it seems that
> it'll randomly fix
>
> itself.
>
> Any help is sincerely appreciated.
> --
> To unsubscribe from this list go to the following
> URL and read the
> instructions:
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>
>
>
> --
> *Sincerely,*
> *Garland McAlexander*
> *O: 212-271-0198 <tel:212-271-0198>*
> *C: 321-315-9948 <tel:321-315-9948>*
> --
> To unsubscribe from this list go to the following URL
> and read the
> instructions:
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>
>
>
>
> Can you post your hosts file, resolv.conf and smb.conf from DC1?
>
> --
> -James
>
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/options/samba
>
>
>
>
> --
> /Sincerely,/
> /Garland McAlexander/
> /O: 212-271-0198/
> /C: 321-315-9948/
>
Nothing out of the ordinary. Does the issue happen on the server side or
client side? Can you run 'nslookup google.com' from the DC? It should
look similar to this.
nslookup google.com
Server: 192.168.1.236
Address: 192.168.1.236#53
Non-authoritative answer:
Name: google.com
Address: 172.217.2.206
Can you rerun the same if it also happens from the client side?
--
-James
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