[Samba] [Samba-it] samba 4.x: centos 7: Bad SMB2 signature for message

[Jones Syue]

Hello Dario,

Could you try to add 'server signing = auto' under [global],
and then restart samba,
hope this helps.

smb.conf would look like:

[global]
server signing = auto
... ...

--
Regards,
Jones Syue | 薛懷宗
QNAP Systems, Inc.

On Sun, Sep 20, 2015 at 5:28 AM, Dario Lesca <d.lesca at solinos.it> wrote:

> Il giorno mer, 16/09/2015 alle 23.02 +0200, Dario Lesca ha scritto:
> > ...
> > All work fine, but after some days the connection to the share folder
> > not work anymore for the user with Win8 and Win8.1.
> > Into log I see this messages:
> >
> > > Sep 16 09:56:14 s-backup smbd[21878]: STATUS=daemon 'smbd' finished
> starting up and ready to serve connectionsBad SMB2 signature for message
> > > Sep 16 09:56:14 s-backup smbd[21878]: [2015/09/16 09:56:14.379103,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:14 s-backup smbd[21878]: [0000] 55 FA FB 06 1F F9 B1 C9
>  27 44 09 C3 16 E1 CF 13   U....... 'D......
> > > Sep 16 09:56:14 s-backup smbd[21878]: [2015/09/16 09:56:14.379252,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:14 s-backup smbd[21878]: [0000] DF EA AC A9 66 40 6C 8F
>  7A A0 D5 D1 45 CA 44 36   ....f at l. z...E.D6
> > > Sep 16 09:56:14 s-backup smbd[21879]: STATUS=daemon 'smbd' finished
> starting up and ready to serve connectionsBad SMB2 signature for message
> > > Sep 16 09:56:14 s-backup smbd[21879]: [2015/09/16 09:56:14.468575,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:14 s-backup smbd[21879]: [0000] 8D 90 BE CD 16 B5 49 85
>  76 54 67 F3 6B 00 EE 35   ......I. vTg.k..5
> > > Sep 16 09:56:14 s-backup smbd[21879]: [2015/09/16 09:56:14.468720,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:14 s-backup smbd[21879]: [0000] 6A 1D 77 98 7F 30 F0 19
>  25 9A 7E 22 EF 21 7E F4   j.w..0.. %.~".!~.
> > > Sep 16 09:56:23 s-backup smbd[21880]: STATUS=daemon 'smbd' finished
> starting up and ready to serve connectionsBad SMB2 signature for message
> > > Sep 16 09:56:23 s-backup smbd[21880]: [2015/09/16 09:56:23.810267,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:23 s-backup smbd[21880]: [0000] 7E 31 21 53 92 62 4F 6D
>  F7 4B 69 DE B8 BB 87 E4   ~1!S.bOm .Ki.....
> > > Sep 16 09:56:23 s-backup smbd[21880]: [2015/09/16 09:56:23.810399,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:23 s-backup smbd[21880]: [0000] A5 69 24 8B DE 9A 09 6E
>  5A D2 BE CB E5 F0 DD 48   .i$....n Z......H
> > > Sep 16 09:56:24 s-backup smbd[21880]: [2015/09/16 09:56:24.439693,  0]
> ../libcli/smb/smb2_signing.c:170(smb2_signing_check_pdu)
> > > Sep 16 09:56:24 s-backup smbd[21880]: Bad SMB2 signature for message
> > > Sep 16 09:56:24 s-backup smbd[21880]: [2015/09/16 09:56:24.439885,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:24 s-backup smbd[21880]: [0000] 4D B5 57 BD B8 A3 1D CF
>  9C DC EE 21 39 CF FE 2E   M.W..... ...!9...
> > > Sep 16 09:56:24 s-backup smbd[21880]: [2015/09/16 09:56:24.440014,  0]
> ../lib/util/util.c:556(dump_data)
> > > Sep 16 09:56:24 s-backup smbd[21880]: [0000] 06 51 61 A1 72 99 53 48
>  FC F9 B4 9F 88 C9 E5 F6   .Qa.r.SH ........
> >
> > Other PC with Win7 o WinXP work great, only Win8* do not connect.
> > ...
>
> Someone have some suggest for me?
> I must provide more info?
> Exposure of my problem is unclear ?
>
> Many thanks
>
> --
> Dario Lesca
> (inviato dal mio Linux Fedora 22 con Gnome 3.16)
>
>
> --
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