what is smbpasswd used for

by Kellen Osinski Published 2 years ago Updated 2 years ago

DESCRIPTION. This tool is part of the samba(7) suite. smbpasswd is the Samba encrypted password file. It contains the username, Unix user id and the SMB hashed passwords of the user, as well as account flag information and the time the password was last changed.

Full Answer

What is smbpasswd and how to protect it?

To protect these passwords the smbpasswd file is placed in a directory with read and traverse access only to the root user and the smbpasswd file itself must be set to be read/write only by root, with no other access. This is the Windows NT hash of the user's password, encoded as 32 hex digits.

How does the SMB password manager work?

When run as a normal user it allows the user to change the password used for their SMB sessions on any machines that store SMB passwords. By default (when run with no arguments) it will attempt to change the current user's SMB password on the local machine.

Why is samba refusing to recognize a smbpasswd file?

It must match the uid field for the same user entry in the standard UNIX passwd file. If this does not match then Samba will refuse to recognize this smbpasswd file entry as being valid for a user. This is the LANMAN hash of the user's password, encoded as 32 hex digits.

Where are SMB passwords stored in Unix?

On a UNIX machine the encrypted SMB passwords are usually stored in the smbpasswd (5) file. When run by an ordinary user with no options, smbpasswd will prompt them for their old SMB password and then ask them for their new password twice, to ensure that the new password was typed correctly.

What is smbpasswd run by?

Who created Samba?

What does the Smbpasswd command do?

On a UNIX machine the encrypted SMB passwords are usually stored in the default passdb backend. When run by an ordinary user with no options, smbpasswd will prompt them for their old SMB password and then ask them for their new password twice, to ensure that the new password was typed correctly.

Where does Smbpasswd store passwords?

Samba stores its encrypted passwords in a file called smbpasswd, which by default resides in the /usr/local/samba/private directory. The smbpasswd file should be guarded as closely as the passwd file; it should be placed in a directory to which only the root user has read/write access.

How do I change my Smbpasswd?

He/she can change his/her samba password by running the command "smbpasswd" at a command prompt on the server. Note this is not run with sudo. It will prompt once for the previous samba password and twice for the new one. The customer is now properly added to samba on your server.

Are Samba passwords encrypted?

Samba also supports the use of LanManager- and NT-encrypted password authentication. Using encrypted passwords with Samba has its advantages and disadvantages. On the positive side, encrypted passwords mean that plaintext passwords cannot be “sniffed” off the network when users log in to a Samba share.

How do I remove a network password?

ResolutionOn your keyboard hit the WINDOWS KEY+R.Type Control Panel, then click OK.Select Network and Sharing Center.Select Change advanced sharing settings.At the bottom of the screen, select the All Networks.Select Turn off password protected sharing.Select Save Changes.

How do I setup a Samba server?

Step 1: Install Samba in Linux. ... Step 2: Create and Configure Samba Shares. ... Step 3: Accessing Samba Share from Windows. ... Step 4: Secure Samba Share Directory. ... Step 5: Accessing Samba Share from Linux Client.

What is SMB password?

smbpasswd is the Samba encrypted password file. It contains the username, Unix user id and the SMB hashed passwords of the user, as well as account flag information and the time the password was last changed. This file format has been evolving with Samba and has had several different formats in the past.

What is the default password for Samba?

Browsing around it suggests that this error message is that you did not enter old password, as it is a new install I presumed it to be blank and googling samba default password came up with 1234 as default password, so tried that in the old SMB password... same error.

How do I add a samba account to Windows 10?

[Network Place (Samba) Share] How to access the files on Network Devices using SMBv1 in Windows 10 ?Open Control Panel in your PC/Notebook.Click on Programs.Click on Turn Windows features on or off link.Expand the SMB 1.0/CIFS File Sharing Support option.Check the SMB 1.0/CIFS Client option.Click the OK button.More items...•

Is Samba safe to use?

Samba itself is secure in the fact that it encrypts passwords (can be set to use cleartext but that would be bad) but by default data is not encrypted. Samba can be compiled with SSL support, but you then have to find a client that supports SMB over SSL because Windows itself doesn't.

How can I make Samba more secure?

Six easy ways to secure SambaPasswords. Most security is based on passwords. ... Limiting password transmission on the network. ... Where to get your passwords. ... Blank passwords. ... Just say no to share-level security. ... Limiting hosts. ... Pick the interfaces. ... Allow hosts.More items...•

How secure is SMB?

In modern applications, you should NOT use SMB v1 because it is insecure (no encryption, has been exploited in attacks like WannaCry and NotPetya) and inefficient (very “chatty” on networks creating congestion and reduced performance).

What is SMB password?

What is the default password for Samba?

How do I create a Samba username and password?

Here's what you do. Open up a terminal window on your Samba server (or just log in, if it's a headless machine) and issue the following command sudo smbpasswd -a USER (where USER is the username to be added). You will be prompted to enter and verify a new password for the user.

What is the name of the daemon associated with samba?

Samba is comprised of three daemons ( smbd , nmbd , and winbindd ).

Samba: where do I find username and password?

So I went to Network Places-->Samba Shares--[name of another computer in my network], and found that it wants a username and password. I suppose that must be a password made by the network administrator that I have to find out? because I never made a samba password for myself; I didn't know I'd need one to access the other computer.

Where is samba password file - need to list samba users

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smbpasswd: change a user's SMB password - Linux Man Pages (8)

Pages related to smbpasswd. smbpasswd (5) - The Samba encrypted password file smbcontrol_selinux (8) - Security Enhanced Linux Policy for the smbcontrol processes smbd (8) - server to provide SMB/CIFS services to clients smbd_selinux (8) - Security Enhanced Linux Policy for the smbd processes smbldap-config (8) - Configure the smbldap-tools smbldap-groupadd (8) - Create a new group

Reset Samba User Password via Command Line

This is an article describe on how to reset a user defined in samba folder and file sharing service. As we already knew that samba folder and file sharing service has its own sharing definition’s access.

Method for users to change Samba password - Unix & Linux Stack Exchange

In this case the Unix accounts of the users do not have passwords, therefore, user1 cannot log on as [email protected]. The Samba server was setup as "security = user" and file restrictions were set in smb.conf. Users were not allowed a Unix logon as the underlying Unix file permissions were more permissive than the combination of Samba and Unix file permissions (Unix extended ACLs were not ...

smbpasswd - Samba - opening windows to a wider world

NOTES. Since smbpasswd works in client-server mode communicating with a local smbd for a non-root user then the smbd daemon must be running for this to work. A common problem is to add a restriction to the hosts that may access the smbd running on the local machine by specifying either allow hosts or deny hosts entry in the smb.conf (5) file and neglecting to allow "localhost" access to the smbd.

What is smbpasswd run by?

When run by root , smbpasswd allows new users to be added and deleted in the smbpasswd file, as well as allows changes to the attributes of the user in this file to be made. When run by root, smbpasswd accesses the local smbpasswd file directly, thus enabling changes to be made even if smbd is not running.

Who created Samba?

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.