[Samba] Newly joined DC - Failed to bind to uuid for ncacn_ip_tcp .. NT_STATUS_INVALID_PARAMETER

[Rowland penny]

On 28/01/2020 20:49, Jonathan Hunter via samba wrote:
> Thank you Rowland!
>
> On Tue, 28 Jan 2020 at 18:37, Rowland penny via samba
> <samba at lists.samba.org> wrote:
>> Your DC doesn't seem to be listing on its IP or 127.0.0.1 on port 53, yours:
>>
>> tcp        0      0 0.0.0.0:53 0.0.0.0:*               LISTEN
>>
>> Mine:
>>
>> tcp        0      0 192.168.0.6:53 0.0.0.0:*               LISTEN
>> tcp        0      0 127.0.0.1:53 0.0.0.0:*               LISTEN
>> [...]
>> Okay, I use Bind9, but I would expect, in your case, that 'named' would
>> be replaced with samba.
> The listening on 0.0.0.0:53 matches my other DCs, I am pretty sure the
> specific interface binding you have is just due to the 'listen-on { }'
> section in your named.conf. My BIND nameservers have the same line in
> named.conf, i.e. listen on 127.0.0.1 plus the local IP address; I
> guess that's a standard pattern for BIND.
>
> dc2$ sudo netstat -aplnt | grep :53
> tcp        0      0 0.0.0.0:53              0.0.0.0:*
> LISTEN      2721/samba
> tcp6       0      0 :::53                   :::*
> LISTEN      2721/samba
>
> newdc$ sudo netstat -aplnt | grep :53
> tcp        0      0 0.0.0.0:53              0.0.0.0:*
> LISTEN      1144/samba: task[dn
> tcp6       0      0 :::53                   :::*
> LISTEN      1144/samba: task[dn
>
> So I think listening on 0.0.0.0 (all interfaces) is perfectly normal
> for samba's internal DNS.
>
>> What is in:
>>
>> /etc/hostname
> newdc$ cat /etc/hostname
> newdc.mydomain.org.uk
>
>> /etc/hosts
> newdc$ cat /etc/hosts
> 127.0.0.1       localhost
> ::1             localhost ip6-localhost ip6-loopback
> ff02::1         ip6-allnodes
> ff02::2         ip6-allrouters
> 192.168.1.6       newdc.mydomain.org.uk
>
>> /etc/resolv.conf
> newdc$ cat /etc/resolv.conf
> # Generated by resolvconf
> nameserver 192.168.1.3  <--- dc2
> nameserver 192.168.1.6  <--- newdc
I would swap the order of the first two nameservers, each DC should use 
itself as its nameserver
> nameserver 192.168.200.10  <--- regular nameserver
> nameserver 192.168.250.10  <--- regular nameserver
Those should be in the DC smb.conf as 'dns forwarders'
> (This matches the format of resolv.conf from my other DCs)

It might do, but those will be wrong as well ;-)

Rowland