samba - Feb 2017 - One username for multiple clients?

<http://www.lumaforge.com/>
Eric Altman ❱❱ CTO
PHONE  310.752.9993 x701
EMAIL  eric at lumaforge.com   <mailto:tyler at lumaforge.com>
WEB  lumaforge.com <http://lumaforge.com/>
OFFICE  6608 Lexington Ave. Hollywood, CA 90038

> On Feb 22, 2017, at 4:24 AM, Reindl Harald via samba <samba at
lists.samba.org> wrote:
> 
> 
> 
> Am 22.02.2017 um 12:44 schrieb Eric Altman via samba:
>> Simply put: We don't care about security at the office. Our current
configuration is to have just one SMB user logged in on ALL machines. We've
had a little bit of weirdness but can't pin it down.
> 
> besides that "We don't care about security at the office" is
not very smart at all (you will regret it when the first client with a crypto
malware starts to encrypt your shares and you don#t have a clue which of the 40
machines is infected) you need to describe "little bit of weirdness"
Totally understand that. First off, it isn't my call and the interest
isn't there from above in anything along the lines of
AD/OD/Kerberizing/etc... much less at least creating a handful of users directly
on the server and handing out individual passwords.

Weirdness = Maybe a couple of times a day, a seemingly random client machine
(macOS) will disconnect all clients from our Ubuntu based server. This
doesn't cause a hang/lock/or anything, the shares can be mounted right back
up. But depending on the work being done at the time, it can result in a good
amount of work being lost.
> 
> http://www.catb.org/~esr/faqs/smart-questions.html#beprecise
> 
>> In other words, we have about 40 machines all connected to our shares
with the same user "smb". Is there a problem with this?
> 
> normally not because it's pretty normal that a user has more than one
connection
> 
That was my thinking, but due to the issues occurring, I felt the need to cover
every avenue I haven't explored yet.
> --
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On Wed, Feb 22, 2017 at 04:34:56AM -0800, Eric Altman via samba
wrote:
> 
> Weirdness = Maybe a couple of times a day, a seemingly random client
machine (macOS) will disconnect all clients from our Ubuntu based server. This
doesn't cause a hang/lock/or anything, the shares can be mounted right back
up. But depending on the work being done at the time, it can result in a good
amount of work being lost.
More likely to be a MacOS bug than a Samba one.

I've been running with my media server at home
with one-user-no-security for *years* :-). But
I don't have any MacOS clients.

Appreciate the feedback. Yeah, I administer many many SMB and NFS based
solutions (for Mac, Windows, and Linux clients with both FreeBSD and Linux
based servers) and this particular issue is a first for me. It's been a
nightmare of tracking down cause after cause. Just needed to put this
potential cause out of my mind for good by asking.

Thank you again.

On Feb 22, 2017 9:11 AM, "Jeremy Allison" <jra at samba.org>
wrote:
> On Wed, Feb 22, 2017 at 04:34:56AM -0800, Eric Altman via samba wrote:
> >
> > Weirdness = Maybe a couple of times a day, a seemingly random client
> machine (macOS) will disconnect all clients from our Ubuntu based server.
> This doesn't cause a hang/lock/or anything, the shares can be mounted
right
> back up. But depending on the work being done at the time, it can result in
> a good amount of work being lost.
>
> More likely to be a MacOS bug than a Samba one.
>
> I've been running with my media server at home
> with one-user-no-security for *years* :-). But
> I don't have any MacOS clients.
>