samba - Feb 2023 - SMB Multichannel not working?

On Wed, Feb 08, 2023 at 05:19:44PM +0000, Carter Sheehan
wrote:
>   Jeremy,
>   I am still looking into getting more debug logs from the Samba server but
>   I wanted to ask you where the details about the tcon bits are? I
can't
>   seem to find the info in my wireshark capture, maybe I'm looking at
the
>   wrong packet. Which packet(s) were you looking at?
In your Windows -> Samba trace, it's packet number 14 (Tree Connect
Response).

Expand that packet out with wireshark and you'll see at the end
of the reply.

Access Mask: 0x001f00a9
>   Also, I wanted to share that I realized we exclusively access these
shares
>   as a "guest" which should be mapped to the
"samba-client" user on the
>   Samba host. But, when looking at the session setup packets I noticed the
>   user in the requests were "sso-csheehan" which is my local user
on the
>   Windows client side. I am wondering if this is potentially the culprit of
>   my problem and what would be more appropriate instead.
If this share should be read-write, pick an appropriate
user that exists on the server with read-write access to
that data. As I don't know anything about your setup,
that's the only advice I can give.

Avoid "guest" with SMB2+ if you can.

Understood, thank you!


Carter Sheehan
Cloud Engineer
d: +1 (781) 224-7753
e: csheehan at vestmark.com

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________________________________
From: Jeremy Allison <jra at samba.org>
Sent: Wednesday, February 8, 2023 12:29 PM
To: Carter Sheehan <csheehan at vestmark.com>
Cc: samba at lists.samba.org <samba at lists.samba.org>
Subject: Re: [Samba] SMB Multichannel not working?


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On Wed, Feb 08, 2023 at 05:19:44PM +0000, Carter Sheehan
wrote:
> Jeremy,
> I am still looking into getting more debug logs from the Samba server but
> I wanted to ask you where the details about the tcon bits are? I can't
> seem to find the info in my wireshark capture, maybe I'm looking at the
> wrong packet. Which packet(s) were you looking at?
In your Windows -> Samba trace, it's packet number 14 (Tree Connect
Response).

Expand that packet out with wireshark and you'll see at the end
of the reply.

Access Mask: 0x001f00a9
> Also, I wanted to share that I realized we exclusively access these shares
> as a "guest" which should be mapped to the
"samba-client" user on the
> Samba host. But, when looking at the session setup packets I noticed the
> user in the requests were "sso-csheehan" which is my local user
on the
> Windows client side. I am wondering if this is potentially the culprit of
> my problem and what would be more appropriate instead.
If this share should be read-write, pick an appropriate
user that exists on the server with read-write access to
that data. As I don't know anything about your setup,
that's the only advice I can give.

Avoid "guest" with SMB2+ if you can.