[Samba] bind-dns Folder Missing for Samba4 Setup in Ubuntu

[Rowland penny]

On 22/09/2019 17:20, Christopher Wooley wrote:
>
> Thank you, I didn't realize the version of Samba was so old, in the 
> Ubuntu 18 repos. I found a different PPA and upgraded to 4.10.8. After 
> restarting the service, it created the folder.
It is the nature of distros that packages are probably behind the times, 
some distros more than others ;-)
>
> I use Webmin to manage DNS, so one thing I'm confused about is, will 
> Samba be adding the zones so they will be manageable by bind and 
> Webmin or will I have to use samba-tool to manage the local AD's DNS? 
> Samba isn't creating zone files, like Bind, they don't show up in 
> Bind's Webmin module and I can't find any files that are being created 
> by Samba that look like Bind's zone files.

Samba dns files are stored in AD, you will not find any bind files that 
you are used to ;-)

Try this (adjusted for your setup):

ldbsearch --cross-ncs --show-binary -H /var/lib/samba/private/sam.ldb -b 
'DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com' 
-s sub '(&(objectClass=dnsNode)(name=@))'

You should get something like this:

dn: 
DC=@,DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com
objectClass: top
objectClass: dnsNode
instanceType: 4
whenCreated: 20151106115624.0Z
uSNCreated: 4060
showInAdvancedViewOnly: TRUE
name: @
objectGUID: 7ad014c4-c1e9-4cb4-9f0d-96d0272af23d
objectCategory: 
CN=Dns-Node,CN=Schema,CN=Configuration,DC=samdom,DC=example,DC=com
dc: @
dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
         wDataLength              : 0x004f (79)
         wType                    : DNS_TYPE_SOA (6)
         version                  : 0x05 (5)
         rank                     : DNS_RANK_ZONE (240)
         flags                    : 0x0000 (0)
         dwSerial                 : 0x0000ed19 (60697)
         dwTtlSeconds             : 0x00000e10 (3600)
         dwReserved               : 0x00000000 (0)
         dwTimeStamp              : 0x00000000 (0)
         data                     : union dnsRecordData(case 6)
         soa: struct dnsp_soa
             serial                   : 0x0000ed19 (60697)
             refresh                  : 0x00000384 (900)
             retry                    : 0x00000258 (600)
             expire                   : 0x00015180 (86400)
             minimum                  : 0x00000e10 (3600)
             mname                    : dc4.samdom.example.com
             rname                    : hostmaster.samdom.example.com

dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
         wDataLength              : 0x001a (26)
         wType                    : DNS_TYPE_NS (2)
         version                  : 0x05 (5)
         rank                     : DNS_RANK_ZONE (240)
         flags                    : 0x0000 (0)
         dwSerial                 : 0x0000ec29 (60457)
         dwTtlSeconds             : 0x00000384 (900)
         dwReserved               : 0x00000000 (0)
         dwTimeStamp              : 0x00000000 (0)
         data                     : union dnsRecordData(case 2)
         ns                       : dc8.samdom.example.com

dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
         wDataLength              : 0x001a (26)
         wType                    : DNS_TYPE_NS (2)
         version                  : 0x05 (5)
         rank                     : DNS_RANK_ZONE (240)
         flags                    : 0x0000 (0)
         dwSerial                 : 0x0000ec29 (60457)
         dwTtlSeconds             : 0x00000384 (900)
         dwReserved               : 0x00000000 (0)
         dwTimeStamp              : 0x0037ceba (3657402)
         data                     : union dnsRecordData(case 2)
         ns                       : dc4.samdom.example.com

dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
         wDataLength              : 0x0004 (4)
         wType                    : DNS_TYPE_A (1)
         version                  : 0x05 (5)
         rank                     : DNS_RANK_ZONE (240)
         flags                    : 0x0000 (0)
         dwSerial                 : 0x0000ec29 (60457)
         dwTtlSeconds             : 0x00000384 (900)
         dwReserved               : 0x00000000 (0)
         dwTimeStamp              : 0x00000000 (0)
         data                     : union dnsRecordData(case 1)
         ipv4                     : 192.168.0.8

dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
         wDataLength              : 0x0004 (4)
         wType                    : DNS_TYPE_A (1)
         version                  : 0x05 (5)
         rank                     : DNS_RANK_ZONE (240)
         flags                    : 0x0000 (0)
         dwSerial                 : 0x0000ec29 (60457)
         dwTtlSeconds             : 0x00000384 (900)
         dwReserved               : 0x00000000 (0)
         dwTimeStamp              : 0x0037ceba (3657402)
         data                     : union dnsRecordData(case 1)
         ipv4                     : 192.168.0.6

whenChanged: 20190922163055.0Z
uSNChanged: 803408
distinguishedName: 
DC=@,DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com

Webmin doesn't seem to have realised that 'idmap uid' is deprecated, so 
I don't hold much hope for using it with Samba dns.

Rowland