[Samba] reverse DNS not working for some reason ...

Patrick Goetz pgoetz at math.utexas.edu
Tue Nov 2 20:53:49 UTC 2021

On 11/2/21 15:32, Rowland Penny via samba wrote:
> On Tue, 2021-11-02 at 15:25 -0500, Patrick Goetz via samba wrote:
>> As per the Wiki instructions for setting up a Samba DC, I ran
>>     # samba-tool dns zonecreate samba-dc 1.168.192.in-addr.arpa -U
>> administrator
>> (while samba-ad-dc was running)
> That is how you are supposed to do it.
>> on my domain controller.  Everything seems to work; I can bind W10
>> machines to this domain, use RSAT, etc., but reverse DNS searches
>> aren't
>> working:
> I refer you to my last reply, well sort of :-D
> You have to tell your Windows clients to update their dns records, they
> do not do it as standard.

I set static IP/DNS entries on my Windows clients -- that's not sufficient?

But in any case, this reverse search was conducted from a linux machine 
with a correctly configured resolv.conf and reverse searches don't work 
on the domain controller itself.  All host resolutions work fine 
everywhere, for example:

root at data2:~# host -t SRV _ldap._tcp.ea.linuxcs.com
_ldap._tcp.ea.linuxcs.com has SRV record 0 100 389 samba-dc.ea.linuxcs.com.

However, on the domain controller itself:

root at samba-dc:~# host -t SRV _ldap._tcp.ea.linuxcs.com
_ldap._tcp.ea.linuxcs.com has SRV record 0 100 389 samba-dc.ea.linuxcs.com.
root at samba-dc:~# host ibs100
ibs100.ea.linuxcs.com has address
root at samba-dc:~# host
Host not found: 3(NXDOMAIN)

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