[Samba] Samba4 internal DNS not responding to DNS requests

[Lee Allen]

I meant to include that in my original description.  Samba is definitely
listening for the DNS requests.  Here it is:

$ netstat -npl | grep 53 | grep LISTEN
tcp        0      0 127.0.0.1:53                0.0.0.0:*
LISTEN      15799/samba
tcp        0      0 192.168.0.13:53             0.0.0.0:*
LISTEN      15799/samba

Lee

On Wed, Jan 9, 2013 at 10:05 AM, Rowland Penny <rpenny at f2s.com> wrote:

> On 09/01/13 14:32, Lee Allen wrote:
>
>> I am not able to get the Samba4 internal DNS server to respond to DNS
>> requests on the network.
>>
>> I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system.  I
>> followed the instructions here:
>> https://wiki.samba.org/index.**php/Samba_AD_DC_HOWTO<https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO>
>>
>> I configured Samba4 to use the internal DNS server.  My Samba4 server is
>> 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net.  The realm is
>> ALLENLAN.NET.
>>
>> The DNS testing section of the document passes:
>>
>> $host -t SRV _ldap._tcp.allenlan.net.
>>      _ldap._tcp.allenlan.net has SRV record 0 100 389
>> ubuntu-ad.allenlan.net.
>> $host -t SRV _kerberos._udp.allenlan.net.
>>      _kerberos._udp.allenlan.net has SRV record 0 100 88
>> ubuntu-ad.allenlan.net.
>> $host -t A ubuntu-ad.allenlan.net.
>>      ubuntu-ad.allenlan.net has address 192.168.0.13
>>
>> I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4
>> server).
>> When I perform the Windows command "nslookup ubuntu-ad.allenlan.net" (or
>> any variation of that) it reports:
>>      DNS request timed out.
>>          timeout was 2 seconds.
>>      *** Can't find server name for address 192.168.0.13: Timed out
>>      (above 3 messages repeat again)
>>      Default servers are not available
>>      Server: UnKnown
>>      Address: 192.168.0.13
>>
>> The Windows system can ping the Samba4 server by IP address.
>>
>> Any help would be appreciated!  More configuration information below.
>>
>> /etc/resolv.conf:
>> domain allenlan.net
>> nameserver 192.168.0.13
>>
>> /usr/local/samba/etc/smb.conf:
>> [global]
>>          workgroup = ALLENLAN
>>          realm = ALLENLAN.NET
>>          netbios name = UBUNTU-AD
>>          server role = active directory domain controller
>>          dns forwarder = 192.168.0.1
>>          interfaces = 192.168.0.13 127.0.0.1
>>          bind interfaces only = yes
>>          log level = 3
>>          server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
>> winbind, ntp_signd, kcc, dnsupdate, dns
>>
>> /etc/hosts:
>> 192.168.0.13    ubuntu-ad       ubuntu-ad.allenlan.net
>> 127.0.0.1   localhost localhost.localdomain localhost4
>> localhost4.localdomain4
>> ::1         localhost localhost.localdomain localhost6
>> localhost6.localdomain6
>>
>> $hostname
>> ubuntu-ad.allenlan.net
>>
>> Thank you.
>>
>> Lee Allen
>>
>
> Hi, What does 'netstat -npl | grep 53 | grep LISTEN' return?
>
> Rowland
>
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-- 
*Lee Allen*
email: lee at leecallen.com
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