[Samba] DNS Suddenly breaking
lingpanda101 at gmail.com
lingpanda101 at gmail.com
Thu Jun 30 13:58:56 UTC 2016
On 6/30/2016 9:57 AM, Garland McAlexander wrote:
> nslookup google.com <http://google.com>
> ;; Got recursion not available from 192.168.1.236, trying next server
> Server: 192.168.1.235
> Address: 192.168.1.235#53
>
> Non-authoritative answer:
> Name: google.com <http://google.com>
> Address: 172.217.4.78
>
>
> Interesting little bit about the "Recursion not available"
>
> On Thu, Jun 30, 2016 at 9:52 AM, lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com> <lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com>> wrote:
>
> On 6/30/2016 9:41 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>
> <http://bus-ny-dc-01.domain.domain.com> bus-ny-dc-01
>
>
> Resolv:
>
> # Generated by NetworkManager
> search domain.domain.com <http://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>
> <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>
> <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> <mailto:lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com>> <lingpanda101 at gmail.com
> <mailto:lingpanda101 at gmail.com> <mailto: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>
> <mailto: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>
> <mailto: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>
> <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>
> <mailto:mueller at tropenklinik.de
> <mailto:mueller at tropenklinik.de>>
> www.tropenklinik.de <http://www.tropenklinik.de>
> <http://www.tropenklinik.de>
> www.bauen-sie-mit.tropenklinik.de
> <http://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>
> <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>
> <mailto: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:
> https://lists.samba.org/mailman/options/samba
>
>
>
> --
> *Sincerely,*
> *Garland McAlexander*
> *O: 212-271-0198 <tel:212-271-0198>
> <tel:212-271-0198 <tel:212-271-0198>>*
> *C: 321-315-9948 <tel:321-315-9948>
> <tel: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 <tel:212-271-0198>/
> /C: 321-315-9948 <tel: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
> <http://google.com>' from the DC? It should look similar to this.
>
> nslookup google.com <http://google.com>
> Server: 192.168.1.236
> Address: 192.168.1.236#53
>
> Non-authoritative answer:
> Name: google.com <http://google.com>
> Address: 172.217.2.206
>
> Can you rerun the same if it also happens from the client side?
>
>
>
> --
> -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/
>
This tells me the issue is on DC2 and not DC1. Can you post the same
configs from DC2?
--
-James
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