[Samba] samba-tool PTR with /16 network

[Hénoch Hervé]

Are  dig -x <ip> or hostname <ip> find the name of the host ?

Le 07/08/2019 à 10:56, L.P.H. van Belle via samba a écrit :
> Yes, offcourse, the 172.19 is a "bad" example. 
> I suggest we use the official RFC 1918 zones. 
>
> 10.0.0.0/8
> 172.16.0.0/12
> 192.168.0.0/16
>
> And for example 192.168.0.0/24 as extra, or people get confused.  ;-) 
>
>
> Greetz, 
>
> Louis
>
>
>  
>
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens 
>> Rowland penny via samba
>> Verzonden: woensdag 7 augustus 2019 10:52
>> Aan: samba at lists.samba.org
>> Onderwerp: Re: [Samba] samba-tool PTR with /16 network
>>
>> On 07/08/2019 09:27, L.P.H. van Belle via samba wrote:
>>> Hai,
>>>
>>> Ok, i did a few things on my DC and see the how/what here.
>>>
>>> First, the zone.
>>> samba-tool dns zonecreate rtd-dc1 19.172.in-addr.arpa
>>> That worked fine, in windows DNS tool that shows correct.
>>>
>>> Now i added an PTR with this line.
>>> samba-tool dns add dc1 19.172.in-addr.arpa 55.0 PTR 
>> testhost.internal.domain.tld
>>> This resulted in a subfolder "0" the 19.172.in-addr.arpa zone.
>>> Where the ip resulted in 172.19.0.0.55 Trying to delete 
>> this from this zone, that did not work, but wait.
>>> After a few minutes, i was wondery why/what the ... ..
>>> I was stunned by it, i refreshed the zone. And hee.. What 
>> happend.. Now it looks correct.
>>> The "extra" 0 folder in the arpa zone is gone
>>> And the ip what i wanted is in. 172.19.0.55 with the 
>> corrected hosts assigned to it.
>>> So i added also in the other range..
>>> samba-tool dns add dc1 19.172.in-addr.arpa 55.1 PTR 
>> testhost2.internal.domain.tld
>>> And that resulted nicely in the correct ip 172.19.1.55
>>>
>>> So per example
>>> samba-tool dns zonecreate rtd-dc1 0.19.172.in-addr.arpa	
>> for a /24 zone
>>> samba-tool dns zonecreate rtd-dc1 19.172.in-addr.arpa	
>> 	for a /16 zone
>>> samba-tool dns zonecreate rtd-dc1 172.in-addr.arpa		
>> for a /8 zone
>>> Adding the ptr records.
>>>                     (*1)     (*2) 	             (*3)     (*4)
>>> samba-tool dns add dc1.fqdn 1.19.172.in-addr.arpa 55 PTR 
>> testhost2.internal.domain.tld  (/24 )
>>> samba-tool dns add dc1.fqdn 19.172.in-addr.arpa 55.1 PTR 
>> testhost2.internal.domain.tld  (/16 )
>>> samba-tool dns add dc1.fqdn 172.in-addr.arpa 55.1.19 PTR 
>> testhost2.internal.domain.tld  (/8 )
>>> 1) the hostname or fully qualified hostname.  Adviced is to 
>> use the FQDN hostname.
>>> 2) the reverse zone.
>>> 3) the reverse ip.  Here you write the ip from right to 
>> left. 172.19.1.55 in reverse zone is 55.1.19.172
>>> 4) the hostname where the ip is pointing to.
>>>
>>> @Rowland, maybe we should add an example as shown here on the wiki.
>>>
>> Yes, but not with '172.19' ;-)
>>
>> I get the same results, but there is a problem, the OPs 
>> ipaddress is for 
>> an internet domain:
>>
>> host -t PTR 172.9.0.11
>> 11.0.9.172.in-addr.arpa domain name pointer 
>> 172-9-0-11.lightspeed.snantx.sbcglobal.net.
>>   I do hope that the OPs 'domain.lan' is 
>> 'snantx.sbcglobal.net' or he is 
>> using someone else's IP range, but then again, I hope it 
>> isn't, because 
>> if it is, his DC is internet resolvable.
>>
>> Rowland
>>
>>
>>
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>>
>
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