samba - Dec 2018 - How to change the server info/version which Samba returns to the client?

On 2018-12-21 12:29, Rowland Penny via samba wrote:
> That's because you are mixing up 'Server' and 'server
string'
> The 'Server' is the Samba version and 'server string' is
something to
> identify the computer, see 'man smb.conf' for more details.
Thanks for this hint. I've tried to locate any other
"server"-related
option in man smb.conf, but I failed. Could you please tell the exact
option which I should use?

Many thanks in advance!

-- 
With best regards,
Dmitry

On Wed, 26 Dec 2018 16:40:13 +0100
Dmitry Katsubo via samba <samba at lists.samba.org> wrote:
> On 2018-12-21 12:29, Rowland Penny via samba wrote:
> > That's because you are mixing up 'Server' and 'server
string'
> > The 'Server' is the Samba version and 'server string'
is something
> > to identify the computer, see 'man smb.conf' for more details.
> 
> Thanks for this hint. I've tried to locate any other
"server"-related
> option in man smb.conf, but I failed. Could you please tell the exact
> option which I should use?
> 
> Many thanks in advance!
> 
I obviously wasn't clear enough ;-)

The 'Server' from here:

Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.14-Debian]

Comes from the servers Samba version, you cannot change this.

The 'server string' parameter controls what is shown in browse lists
etc. This can be changed, but Samba will need to be restarted/reload
after the change and a new connection will need to be made to the
server.

Rowland

On 2018-12-26 17:10, Rowland Penny via samba wrote:
> Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.14-Debian]
> 
> Comes from the servers Samba version, you cannot change this.
> 
> The 'server string' parameter controls what is shown in browse
lists
> etc. This can be changed, but Samba will need to be restarted/reload
> after the change and a new connection will need to be made to the
> server.
If the server's version reported to the client can't be changed, can
it be potentially simplify the implementation of attack on Samba server
(as attacker knows the operating system and version of the server)?

-- 
With best regards,
Dmitry

> > Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.14-Debian]
 Server=[Samba 4.2.14-Debian]
	
You can change the version-Debian yes. 
But you need to rebuild you samba for it. 

Run : apt-get source samba 
cd samba-.... 

Edit VERSION
You see somethine like this. 

########################################################
SAMBA_VERSION_VENDOR_SUFFIX=Debian
SAMBA_VERSION_VENDOR_PATCH
> Onderwerp: Re: [Samba] How to change the server info/version 
> which Samba returns to the client?
> 
> On 2018-12-26 17:10, Rowland Penny via samba wrote:
> > Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.14-Debian]
> > 
> > Comes from the servers Samba version, you cannot change this.
> > 
> > The 'server string' parameter controls what is shown in browse
lists
> > etc. This can be changed, but Samba will need to be restarted/reload
> > after the change and a new connection will need to be made to the
> > server.
> 
> If the server's version reported to the client can't be changed,
can
> it be potentially simplify the implementation of attack on 
> Samba server
> (as attacker knows the operating system and version of the server)?
If you are concerned about that, why did you even start nmbd and are you
allowing network browing.
> 
> -- 
> With best regards,
> Dmitry
> 
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Greetz, 

Louis