samba - Dec 2006 - Samba shares on Linux machine get disconnected after ~ 1 min

Hi,

I have Samba 3.0.13 running on Suse 9.2 on an i586.

I can browse and connect to the Samba shares on the Linux machine from Windows 
XP and Mac OSX.

However, about 1 min after connecting, the shares are lost and gone from the 
network environment - same for Windows XP and Mac OSX. From time to time, they 
"re-appear" only to be gone after another minute or so.

The Windows shares mounted on the Linux machine work fine.

Is this a known problem?

Regards, Helge

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This is my smb.conf-file:


# Samba config file created using SWAT
# from 127.0.0.1 (127.0.0.1)
# Date: 2005/02/19 17:41:36

# Global parameters
[global]
     workgroup = kauai
     server string = Samba 3.0.13 at napali.kauai.de
     map to guest = Bad User
     username map = /etc/samba/smbusers
     printcap cache time = 750
     logon path = \\%L\profiles\.msprofile
     logon drive = P:
     logon home = \\%L\%U\.9xprofile
     printer admin = @ntadmin, root, administrator
     cups options = raw
     include = /etc/samba/dhcp.conf
     add machine script = /usr/sbin/useradd  -c Machine -d /var/lib/nobody -s 
/bin/false %m$
     domain logons = No
     domain master = No
     security = user

[users]
     comment = All users
     path = /home
     read only = No
     inherit acls = Yes
     veto files = /aquota.user/groups/shares/

[pdf]
     comment = PDF creator
     path = /var/tmp
     create mask = 0600
     printable = Yes
     print command = /usr/bin/smbprngenpdf -J '%J' -c %c -s %s -u
'%u' -z %z

[printers]
     comment = All Printers
     path = /var/tmp
     create mask = 0600
     printable = Yes
     browseable = No

[helge]
     comment = Helges ~-Verzeichnis
     path = /home/helge
     read only = No

[archive]
     comment = Archiv: Software, Musik, Bilder, Filme, etc.
     path = /archive
     read only = No

[backup]
     comment = Backup: /home/helge, /etc, /root, /boot
     path = /backup
     read only = No

[hostfs]
     comment = napali host-filesystem
     path = /

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Helge Schichlein wrote:
> Hi,
> 
> I have Samba 3.0.13 running on Suse 9.2 on an i586.
> 
> I can browse and connect to the Samba shares on the Linux machine from
> Windows XP and Mac OSX.
> 
> However, about 1 min after connecting, the shares are lost and gone from
> the network environment - same for Windows XP and Mac OSX. From time to
> time, they "re-appear" only to be gone after another minute or
so.
>
That looks like a browsemaster issue: some other pc is fighting with your
samba server to become the workgroup master (and that pc obviously does not
carry the shares)
 
...
> # Global parameters
> [global]
>      workgroup = kauai
>      server string = Samba 3.0.13 at napali.kauai.de
>      map to guest = Bad User
>      username map = /etc/samba/smbusers
>      printcap cache time = 750
>      logon path = \\%L\profiles\.msprofile
>      logon drive = P:
>      logon home = \\%L\%U\.9xprofile
>      printer admin = @ntadmin, root, administrator
>      cups options = raw
>      include = /etc/samba/dhcp.conf
>      add machine script = /usr/sbin/useradd  -c Machine -d /var/lib/nobody
>      -s
> /bin/false %m$
>      domain logons = No
>      domain master = No
>      security = user
You have set "domain master" to no, which just means you don't
want your
server to appear as a _workgroup_ browse master. Even if you do not want a
NT style domain, you should consider changing this - unless you have
another domain controller which also does carry the members list by
default. But then, you would want a reference to that in your smb.conf
as "wins server = <IP>".
If you keep running this server 24/7, there should be no reason to not make
it "domain master" and "local master" and "preferred
master" as well, or /
and use the "wins support" directive, together with
the "netbios-name-server" stanza in your dhcpd configuration or (done
through ADIDAS-Admins) adding the IP of your wins server to each clients
tcpip settings - advanced - WINS entries.

Guido Lorenzutti wrote:
> Hi people! I have a few problems with the password strength in Samba.
> I have a PDC with LDAP on Debian Stable, with a few packages from
> backports. The problem is that I can't find a way to enforce strenght
to
> the passwords of the users. I can't define a policy to force things
like:
> number of uppercase letters, number of downcase letters, number of
> numbers in the password, to check the diference between the new and the
> old, to store a list of old passwords to check... I mean, things that
> are requiered to enforce some policy of security by my company.
> Bottom line? The users can put his username for password! Not even that
> is checked...
>
Since windows by default only sends encrypted password hashes across the
net, it will be impossible to check passwords on the server side. The ldap
only stores lanman and nt hashes, except your users change their passwords
from a *nix shell.
> It's something wrong in my setup or is a feature request? I see min
> password length.. but.. the rest?
> 
You will have to employ poledit to generate a useful ntconfig.pol which has
to be present in the netlogon share of your DC. There are some basic
password checks you can configure there, but they take place at the local
client.
Ldap can, however, enforce password changes due to the timestamps it stores
for password hash changes.