[Samba] Reverse Lookup Zone Not Loaded by DNS Server

[Roy Eastwood]

On 27 May 2021 10:16 Rowland penny wrote:
> On 26/05/2021 22:20, Roy Eastwood via samba wrote:
> >
> > Yes, here they are:
> >  From tiger-db (DC owning the FSMA roles)
> 
> 
> OK, from reading the logs you posted at the start, you haven't turned of
> IPv6, do you use it ?

No I don’t use it.  I thought I had turned off ipv6 - I have this line in the /etc/default/grub file:
GRUB_CMDLINE_LINUX_DEFAULT="vga=792 quiet ipv6.disable=1"

and netstat -tanp produces only ipv4 output.

> 
> 'running as: named -u bind' should be 'running as: named -u bind -4' if
> you don''t want IPv6

OK, will add this, thanks.

> 
> You do not seem to be using 'eth0' (or similar):

Yes there's an ethernet bridge (br0) for the lxc/lxd containers which are also on this box (a member server is running as a file server in a container).
That's the interface which has the ip address for the box.   The actual ethernet interface is enp10s0, but doesn't get an ip address.

> 
> May 26 17:20:23 tiger-db named[10639]: listening on IPv4 interface lo,
> 127.0.0.1#53
> May 26 17:20:23 tiger-db named[10639]: listening on IPv4 interface br0,
> 192.168.2.240#53
> 
> You also seem to have extra zones, so could you post the contents of
> '/etc/bind/named.conf.default-zones'
> 
> Rowland
> 
Yes, these we as installed by Debian, and I didn't change them:
named.conf.default-zones:
// prime the server with knowledge of the root servers
zone "." {
	type hint;
	file "/usr/share/dns/root.hints";
};

// be authoritative for the localhost forward and reverse zones, and for
// broadcast zones as per RFC 1912

zone "localhost" {
	type master;
	file "/etc/bind/db.local";
};

zone "127.in-addr.arpa" {
	type master;
	file "/etc/bind/db.127";
};

zone "0.in-addr.arpa" {
	type master;
	file "/etc/bind/db.0";
};

zone "255.in-addr.arpa" {
	type master;
	file "/etc/bind/db.255";
};
================end named.conf.default-zones====================

Thanks,
Roy