[Samba] server max protocol appropriate values

Rowland Penny rowlandpenny at googlemail.com
Fri Mar 6 06:56:00 MST 2015

On 06/03/15 13:36, James wrote:
> Hi Marc,
>      I'm a little confused. The values I provided for client and server
> max protocol are default values. At least according to the command
> 'samba-tool testparm -v'. I have not explicitly set them in my smb.conf
> file. I assume SMB3 became the default at some point with a release? I'm
> worried now that I must make explicit changes to my smb.conf file when
> default values are changed from a prior version. Maybe it's a bug and my
> values should've been changed when I updated Samba when smb3 became the
> default? I started with 4.0.0 from tar for reference. Sequential version
> updates after that. Thanks.
> On 3/4/2015 5:43 PM, Marc Muehlfeld wrote:
>> Hello James,
>> Am 04.03.2015 um 16:26 schrieb James:
>>>      My DC smb.conf currently has the following set
>>>          server max protocol = NT1
>>>          server min protocol = CORE
>>>          client max protocol = NT1
>>>          client min protocol = CORE
>>> Is it safe to change both the client and server max to = SMB3? What
>>> about on member servers? Should I be concerned with anything breaking?
>>> I'm using Windows 7 clients to authenticate against Ubuntu 4.1.17 DC's
>>> and a Debian Wheezy as a file server.
>> If the new protocol versions are instable, they wouldn't be default. ;-)
>> At work I have all server (4.1.17) running on their default value. But
>> we encountered some SMB2 caching problems. But this was client related
>> and can be controlled via registry/GPO settings, if appearing:
>> https://technet.microsoft.com/zh-tw/library/ff686200%28v=ws.10%29.aspx
>> Regards,
>> Marc

There is something wrong here with either what the default is in 
smb.conf on an AD DC or the manpage for smb.conf

 From 'samba-tool testparm -v' :

server max protocol = NT1

BUT 'man smb.conf' says this :

Default: server max protocol = SMB3

OK, one of these is wrong, but which ???


More information about the samba mailing list