Re: smb protocol version

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On Mon, 15 Jun 2020, Christopher Wensink wrote:

I don't have any lines in my configuration file for any of the servers,
how can I tell what the default protocols are?

Are the defaults controlled by samba or the kernel?

samba controls this via smb.conf

See "man smb.conf" for details. The min protocols vary depending on the version
of samba you are running.

Regards,

--
Tom			me@xxxxxxxxxx


Chris

On 6/15/2020 2:13 PM, Fred Smith wrote:
On Mon, Jun 15, 2020 at 11:23:54AM -0500, Christopher Wensink wrote:
I have a handful of Linux Servers, running Centos 6.10, and 6.8 with the
main host running openvz w/ Centos 6.10 as the main OS.? Two of the
guests are running samba, sharing directories out to windows clients.

I'm in the process of migrating servers over to vmware, using Centos
7.8.? How can I determine what smb protocol version is being used in the
shares for each server?? I don't see the protocol specified anywhere in
smb.conf?

Chris
in my Centos-7 box, /etc/samba/smb.conf contains:

        server min protocol = SMB3_11
        client max protocol = SMB3_11
        client min protocol = SMB3_11


Some non-current windows versions don't support that version, you
may need to try different values til you find one that works.
Whatever you do, you don't want to use version 1.

I'm forcing version 3.1.1 only because all the devices I have
that support SMB also support 3.1.1, so if someone comes along with,
e.g., an old laptop with XP, it won't be able to insecurely talk
to my lan/wan. (and that's a feature, not a bug! ;=) )

Also, you may wish to peruse this page:

https://docs.microsoft.com/en-us/windows-server/storage/file-server/troubleshoot/detect-enable-and-disable-smbv1-v2-v3



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