Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Samba - Change passwd from client with ctrl + alt + del
Top Forums UNIX for Beginners Questions & Answers Samba - Change passwd from client with ctrl + alt + del Post 302981982 by hicksd8 on Thursday 22nd of September 2016 04:52:34 AM
Old 09-22-2016
Are you trying to change the password for the same user from both routes? Or for different users?

The point I am making is this.
You have a Unix system with a user on it with his Unix login password.
You then install Samba.
You then configure this user to use Samba.
Samba will NOT use the Unix login password for this user so at this point the user still cannot user Samba. (**)
The Samba password (although normally set the same as the Unix password) needs to be set.
However, at this point the Unix O/S knows that this user is also a Samba user so if the sysadmin resets that user's password, the system sets the user's Samba password at the same time too.
At this point the user can access using Samba.

So if the user tries to change password via Samba at this point (**), it will produce a security error.

Samba passwords are usually (depending on the exact Samba implementation) hashed in a 'smbpasswd' or 'smbpassword' file on the Unix system somewhere. You can look in there and see whether hashed passwords exist and for which users.

Yes, I know that this doesn't feel like a Debian problem but just perhaps it is. I cannot think of why one Samba client would behave differently to another from a security point of view.

Please do post back your progress.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Python+Linux: CTRL-ALT-DEL Ncurses Utility

I have this NCurses utility that prompts for user input and takes action appropriately, I changed the default action for the three finger'd salute to run this utility instead of restarting the system. This is a problem: Printing to stdout happens immediately, but before anything else (such as... (0 Replies)
Discussion started by: thmnetwork
0 Replies

2. AIX

Disable ctrl-c,ctrl-d,ctrl-d in ksh script

I wrote a ksh script for Helpdesk. I need to know how to disable ctrl-c,ctrl-z,ctrl-d..... so that helpdesk would not be able to get to system prompt :confused: (6 Replies)
Discussion started by: wtofu
6 Replies

3. IP Networking

How to enumerate samba shares with client

I have a samba server node and I want to mount the samba (CIFS) shares from a second (client) unix machine. However, the unix mount command requires I specify the name of the share. What if I don't know the name of the share? How can I enumerate all the shares from the samba client machine? ... (1 Reply)
Discussion started by: siegfried
1 Replies

4. UNIX for Dummies Questions & Answers

Need to change root passwd

I booted up Sun V240 server with boot cdrom -s using the Sun Operating System CD. I now am at the # prompt and su - root . The system will not allow me to set password for root. Get following error: # passwd New Password: xxxxxxxx Re-enter new Password: xxxxxxxx passwd: Unexpected failure. ... (4 Replies)
Discussion started by: mayewil
4 Replies

5. AIX

new password not available on nis client for up to 10 minutes after yppush passwd

Hi, We are currently in the process to move the user authentication for our AIX clients to a Windows 2003 server to authenticate them against the active directory entries. What we have so far: - NIS master server on Windows 2003 Server with the unix-subsystem installed -> This is managing... (1 Reply)
Discussion started by: candyflip2000
1 Replies

6. Programming

Do you know whether ncurses supports Alt or Ctrl combination keys

I'm new in ncurses. I'd like to ask one question. Do you know whether ncurses supports Alt or Ctrl combination keys? Our application wants to get response when inputting Alt or Ctrl combination keys by keyboard in one linux c project. I try one testing on ncurses, it seems ncurses doesn't... (3 Replies)
Discussion started by: liuyan03
3 Replies

7. Red Hat

Samba Client for RHEL 4

I am looking for a Samba Client for a redhat 4 installation. I can't find it anywhere on the web. Does anyone have a link where i can find a working version ? This is my version: Red Hat Enterprise Linux AS release 4 (Nahant Update 7) /usr/bin/file: ELF 32-bit LSB executable, Intel... (5 Replies)
Discussion started by: guidovans
5 Replies

8. Solaris

Unable to change the passwd

bash-3.00# passwd sami New Password: Re-enter new Password: Dec 14 00:07:43 hack passwd: passwdutil: crypt_gensalt Invalid argument passwd: Unexpected failure. Password database unchanged. Permission denied i got this error while i am change the user(sami) passwd. (3 Replies)
Discussion started by: samiulla
3 Replies

9. Solaris

Not able to find samba client service in Solaris 10

Hi I am new to samba & I need to configure samba client on Solaris 10 machine where I need to mount/share window folder (Window 2008 machine is configured as samba server). I am following below mention link to mount this window's folder. ... (7 Replies)
Discussion started by: sb200
7 Replies

10. Solaris

Can't change users passwd

Have an issue with a user or root changing the user's passwd. We run the passwd command and a complex passwd is entered a message is displayed, "passwd is based on a dictionary word." We do have a dictionary file and I know for a fact the complex passwd is not in the list. This happens on a... (3 Replies)
Discussion started by: solizkewl
3 Replies

LEARN ABOUT CENTOS

vfs_acl_xattr

VFS_ACL_XATTR(8)					    System Administration tools 					  VFS_ACL_XATTR(8)

NAME

       vfs_acl_xattr - Save NTFS-ACLs in Extended Attributes (EAs)

SYNOPSIS

       vfs objects = acl_xattr

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       The vfs_acl_xattr VFS module stores NTFS Access Control Lists (ACLs) in Extended Attributes (EAs). This enables the full mapping of Windows
       ACLs on Samba servers.

       The ACLs are stored in the Extended Attribute security.NTACL of a file or directory. This Attribute is not listed by getfattr -d filename.
       To show the current value, the name of the EA must be specified (e.g.  getfattr -n security.NTACL filename).

       This module is stackable.

OPTIONS

       acl_xattr:ignore system acls = [yes|no]
	   When set to yes, a best effort mapping from/to the POSIX ACL layer will not be done by this module. The default is no, which means that
	   Samba keeps setting and evaluating both the system ACLs and the NT ACLs. This is better if you need your system ACLs be set for local
	   or NFS file access, too. If you only access the data via Samba you might set this to yes to achieve better NT ACL compatibility.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

Samba 4.0							    06/17/2014							  VFS_ACL_XATTR(8)
All times are GMT -4. The time now is 02:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy