[Samba] Is there a limit on Number of users connecting share

[Rowland Penny]

On Mon, 20 Aug 2018 11:06:48 +0530
Amit via samba <samba at lists.samba.org> wrote:

> Dear Devels,
> 
> samba-4.2.3-10.el7.x86_64
> 
> # vim smb.conf
> [global]
>         workgroup = MYGROUP
>         server string = Samba Server Version %v
>         log file = /var/log/samba/log.%m
>         max log size = 50
>         security = user
>         passdb backend = tdbsam
>         load printers = yes
>         cups options = raw
>         server signing = auto
>         server signing = mandatory
> [homes]
>         comment = Home Directories
>         browseable = no
>         writable = yes
> [printers]
>         comment = All Printers
>         path = /var/spool/samba
>         browseable = no
>         guest ok = no
>         writable = no
>         printable = yes
>  [test]
>         comment = samba share
>         path = /test
>         guest ok = no
>         write list = @CAT
>         browseable = yes
>         create mask = 0755
>         directory mask = 0775
>         blocking locks = no
>         block size = 4096
> 
> Here CAT is local group.
> 
> # id catuser
> uid=5060(catuser) gid=1033(CAT) groups=1033(CAT)
> 
> 
> For my customer, When 200+ User access /test (using catuser). Some
> users can access share but blank contents.
> 
> In smb logs:
> For passing user:
> 01hwcl858826 (ipv4:10.29.180.45:60627) connect to service test
> initially as user catuser (uid=5060, gid=1033) (pid 5286)
> check_reduced_name: . reduced to /test unix_mode(.) returning 0744
> check_reduced_name [CAT/CAT_658/PROJECT/EXTERIOR/DG] [/test]
> 
> 
> 
> For failing user:
> 01hw1027178 (ipv4:172.29.208.178:54638) connect to service scratch
> initially as user catuser (uid=5060, gid=1033) (pid 28686)
> check_reduced_name: . reduced to /test unix_mode(.) returning 0744
> checking for home directory test.ws <http://scratch.ws/>  gave (NULL)
> checking whether test.ws <http://scratch.ws/>  is a valid printer
> name...
> 
> 
> Query:
> 1. Is there a limit on max number of connections to share? There must
> be what's the max? 2. Is using force user, force group good option
> here? 3. Is there limit on max number of files opened, Can this issue
> be related to this? 4. Why in failing case it checking 'home dir,
> Printers'?
> 
> 

I think we need more info here:

What are the clients ?

It looks like they are all using the same username to connect to the
share, is this correct ?

If it is correct, are they all using the same password ?

Is this standalone server in an AD domain ?

Do the clients that don't work have NTLMv1 turned off ?

Rowland