[Samba] Strange DNS issue...

[Ryan Ashley]

I solved half of my problem. Disabling updates from isc-dhcp-server and 
rebooting removed those zones which were named after hostnames of 
workstations. I had enabled those in an attempt to get the reverse zones 
working. My static zones are fine (172.16.0, 172.16.1, and 172.16.3) but 
the one DHCP serves (172.16.2) does not create any PTR records when the 
workstations (Windows) request and receive an IP address. Is there 
anything special I need to do here? Both the reverse zones and the 
forward zone have the same permissions according to the Windows DNS snap-in.

On 09/10/2014 07:14 PM, Ryan Ashley wrote:
> Anybody? This is very strange and I cannot figure out why it is 
> happening or why my reverse-DNS zones are not populating.
>
> On 09/09/2014 06:51 PM, Ryan Ashley wrote:
>> Alright, things have been fine since the sharing issue, but I finally 
>> decided to dig into why my reverse-DNS zones are empty, save one 
>> single entry at the client location. What I found was very strange 
>> indeed. I have some type of grayed out records I cannot delete that 
>> are named after the hostnames of devices on my network. This one has 
>> me. Here's a screenshot linked below, and my BIND/DHCP configurations.
>>
>> http://dhta.oesm.org/dns.jpeg
>>
>> root at dc01:~# cat /etc/bind/named.conf
>> # Required for SAMBA4
>> include "/var/lib/samba/private/named.conf";
>>
>> # Global options
>> options {
>>     auth-nxdomain yes;
>>     directory "/var/cache/bind";
>>
>>     forwarders {
>>       8.8.8.8;
>>       8.8.4.4;
>>     };
>>
>>     allow-transfer { none; };
>>     notify no;
>>     empty-zones-enable no;
>>
>>     allow-query {
>>       127.0.0.1;
>>       172.16.0.0/22;
>>     };
>>
>>     allow-recursion {
>>       127.0.0.1;
>>       172.16.0.0/22;
>>   };
>>
>>   tkey-gssapi-keytab "/var/lib/samba/private/dns.keytab";
>> };
>>
>> # Root servers (required zone for recursive queries)
>> zone "." {
>>   type hint;
>>   file "named.root";
>> };
>>
>> # Required localhost forward/reverse zones
>> zone "localhost" {
>>   type master;
>>   file "master/localhost.zone";
>> };
>>
>> zone "0.0.127.in-addr.arpa" {
>>   type master;
>>   file "master/0.0.127.zone";
>> };
>>
>> root at dc01:~# cat /etc/dhcp/dhcpd.conf
>> ddns-update-style none;
>> option domain-name "truevine.lan";
>> option domain-name-servers 172.16.0.1,172.16.0.2;
>> default-lease-time 600;
>> max-lease-time 7200;
>> authoritative;
>> log-facility local7;
>>
>> subnet 172.16.0.0 netmask 255.255.252.0 {
>>   range 172.16.2.1 172.16.2.100;
>>   option routers 172.16.0.254;
>>   option broadcast-address 172.16.3.255;
>>   ddns-updates on;
>>   ddns-update-style interim;
>>   update-static-leases on;
>> }
>>
>> That's it. Have I done something that would cause such an odd thing 
>> to happen? Also, how do I remove those things?
>