Bug 426 - error: SMB signing is mandatory and we have disabled it
Summary: error: SMB signing is mandatory and we have disabled it
Alias: None
Product: Samba 3.0
Classification: Unclassified
Component: smbclient (show other bugs)
Version: 3.0.0preX
Hardware: All Linux
: P1 critical
Target Milestone: none
Assignee: Gerald (Jerry) Carter (dead mail address)
QA Contact:
Depends on:
Reported: 2003-09-09 08:14 UTC by Josh Van As
Modified: 2005-11-14 09:28 UTC (History)
0 users

See Also:


Note You need to log in before you can comment on or make changes to this bug.
Description Josh Van As 2003-09-09 08:14:36 UTC
I have a Windows 2003 Server (named volcano) which I am attempting to mount a 
share from.  My client is an x86 Red Hat Linux 9.0 box running Samba 3.0RC3 
after a fresh reboot.

I issue the following command which is a command that worked fine before.

smbmount //volcano/c$ /mnt/volcano/c -o credentials=/root/smb.pass 

(username and domain name omitted)

Instead of mounting the share, I receive the following error:

cli_negprot: SMB signing is mandatory and we have disabled it.
2639: protocol negotiation failed
SMB connection failed

I can't seem to find this error listed anywhere.  If SMB Signing is 
unsupported or something weird like that, could someone please point me in the 
direction of how to turn it off?

Comment 1 Gerald (Jerry) Carter (dead mail address) 2003-09-09 11:09:46 UTC
smbfs does not support SMB signing.  Your only option is to use 
the newer cifsvfs file system.  See 


for details.

or you can disable smb signing on the 2003 server.
Comment 2 Gerald (Jerry) Carter (dead mail address) 2005-02-07 09:05:46 UTC
originally reported against one of the 3.0.0rc[1-4] releases.
Cleaning up non-production versions.
Comment 3 Gerald (Jerry) Carter (dead mail address) 2005-11-14 09:28:42 UTC
database cleanup