[Samba] How to change the server info/version which Samba returns to the client?

[Dmitry Katsubo]

Dear Samba team,

I would like to change the server info string which Samba returns to the 
client.
I tried to change the "server string" setting in /etc/samba/smb.conf:

[global]
    server string = Master

# testparm | grep "server string"
         server string = Master

# /etc/init.d/samba restart

but the server still returns the string "Samba 4.2.14-Debian":

$ smbclient //localhost/home -U guest%guest -c ls
Domain=[WORKGROUP] OS=[Windows 6.1] Server=[Samba 4.2.14-Debian]
   .                                   D        0  Mon Dec 17 00:01:54 
2018
   ..                                  D        0  Mon Jan 29 20:20:52 
2018

It looks like "server string" setting has no effect or I am changing the 
wrong
setting.

Additional info:

# dpkg -l | grep samba
ii  samba    2:4.2.14+dfsg-0+deb8u11   i386   SMB/CIFS file, print, and 
login server for Unix

-- 
With best regards,
Dmitry