While the final dot has been required within zone files to prevent unwanted 
appendages to records it has NOT  been required by tools such as host and 
nslookup on either Windows or Linux/UNIX which routinely use "search" domains.  
 As I noted this is something that seems to have changed recently.    It 
doesn't happen for every record either so we're just now looking into what has 
changed and as stated I suspect it is the new Windows Domain Controllers 
recently installed.

The article I mentioned posted last week does suggest that using short names is 
a bad idea now due to the new plethora of TLDs and the bleed over but that 
doesn't mean it never worked.    The article says that what made short names 
work in the past was platform dependent so really wasn't a good idea even for 
internal systems.  Despite that it IS the way many people have run their 
environments for years.




-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Sebastian Wiesinger
Sent: Monday, September 15, 2014 9:50 AM
To: [email protected]
Subject: Re: Change in behaviour regarding ndots and searchlist

* Barry Margolin <[email protected]> [2014-09-15 15:18]:
> In article <[email protected]>,
>  Steven Carr <[email protected]> wrote:
>
> > On 15 September 2014 13:29, Lightner, Jeff <[email protected]> wrote:
> > > I've begun seeing this recently in nslookup on Windows workstations as
> > > well.    It appears it is appending search domains even when I've 
> > > specified
> > > an FQDN.   That is I have two search domains such as ex1.com and ex2.net
> > > and I typed short name "ralph" for nslookup or host it would give
> > > me "ralph.ex1.com" IP if it existed or "ralph.ex2.net" if the 
> > > ralph.ex1.com
> > > didn't exist and the latter did.   Now what I'm seeing is even if I 
> > > specify
> > > "ralph.ex1.com" it is looking up and failing on "ralph.ex1.com.ex2.net".
> >
> > Without the final explicit "." your name is not fully qualified.
>
> But if a name has more than ndots dots, it's supposed to be tried as
> given first, before adding search domains.

But currently (9.9) it will not add search domains at all. Which I find odd.

Regards

Sebastian

--
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you Death?' ... IT'S THE SCYTHE, ISN'T IT? PEOPLE ALWAYS NOTICE THE SCYTHE.
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