[Samba] Samba file server share sets Windows Hidden attribute

[Mark Foley]

On Mon Jan 29 12:37:02 2024 Rowland Penny via samba <samba at lists.samba.org>
>
> On Mon, 29 Jan 2024 12:24:35 -0500
> Mark Foley via samba <samba at lists.samba.org> wrote:
>
> > On Fri Jan 26 15:14:48 2024 Mark Foley via samba
> > <samba at lists.samba.org> wrote:
> > >
> > > I'm having a very odd problem. I have a domain member running Samba
> > > 4.18.9, just installed last weekend. It is a file server for the
> > > office who use Windows 10 and have a "drive" mapped to this host.
> > >
> > > When users scan/append to existing PDF files on this mapped drive,
> > > they disappear. Viewed on Windows, the H (hidden attribute) gets
> > > set. The user can scan a new file to their mapped drive and it is
> > > visible. The user can alternatively scan/append/save this modified
> > > file to their Desktop, then copy it back (overwrite) it on the
> > > Samba share and it is visible.
> > >
> > > <snip>
> > 
> > Thanks to a response from a poster on LinuxQuestions.org I found I
> > had to set the "store dos attributes = on" attibute in smb.conf. I've
> > already expressed my feelings about changing defaults which affect
> > production programs, and this is another example. Our users and I
> > spent a week trying to figure out what was going on.
> > 
> > The LQ poster said that the default had been changed in version
> > 4.9.0+. I then searched all the release notes from my previous 4.6.16
> > version until I did find this change noted in the release notes for
> > 4.9.0.
>
> Yes, it was changed in 4.9.0, but it as changed to 'yes', which is the
> same as 'on'
>
> > 
> > I'm sure this default change broke more systems that it fixed as this
> > is a major behavior change.  I don't think people usually read all
> > release notes for all updated facilities during automatic OS
> > upgrades.  I went from 4.6.16 on Slackware 14.2 to 4.18.9 on
> > Slackware 15.0, so not very likely to read all the release notes in
> > between. 
> > 
> > Anyway, problem fixed and I would suggest that developers think twice
> > about altering default behavior for things are are signficant
> > behavior changers.
> > 
> > --Mark
> > 
>
> I do not know how you fixed things, but, in my opinion, it wasn't by
> setting 'store dos attributes = on', that is a default setting.
>
> Rowland

Sorry, my bad. My dyslexia is acting up again. I set it to 'store dos attributes
= no'. That's all I did and that definitely changed things so the scan/append
now works.

Release notes for 4.9.0 say,

As the most popular Samba install platforms (Linux and FreeBSD) both
support extended attributes by default, the parameters "map readonly",
"store dos attributes" and "ea support" have had their defaults changed
to allow better Windows fileserver compatibility in a default install.

  Parameter Name                     Description             Default
  --------------                     -----------             -------
  store dos attributes               Default changed             yes

--Mark