[Samba] Strange DNS issue...

Ryan Ashley ryana at reachtechfp.com
Wed Sep 10 17:14:20 MDT 2014


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?



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