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authorMichael Osipov <michaelo@FreeBSD.org>2025-03-08 18:29:24 +0100
committerMichael Osipov <michaelo@FreeBSD.org>2025-03-12 10:02:37 +0100
commit6cbfa0518c353ea2fe937c6cdea92326922d34c3 (patch)
treed1633476518c2a1715bf71ae9ae27f8ace0c5192 /net/samba419/files/man/smbpasswd.5
parentfinance/favagtk: Fix COMMENT (diff)
net/samba4{19,20}: Rework manpages handling
* Rename option MANDOC to MANPAGES to match with other ports and Mk/bsd.options.desc.mk. * Remove outdated, incorrect, precompiled manpages from ${FILESDIR}/files/man. * Properly disable manpages generation since XSLTPROC was set to true(1) WAF always assumed xsltproc(1) to work and if any automatic dependency pulled in textproc/docbook-xsl, manpages were generated even if explicitly disabled. PR: 281415 Approved by: jrm (mentor), mikael, 0mp Differential Revision: https://reviews.freebsd.org/D49299
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-'\" t
-.\" Title: smbpasswd
-.\" Author: [see the "AUTHOR" section]
-.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
-.\" Date: 08/09/2022
-.\" Manual: File Formats and Conventions
-.\" Source: Samba 4.16.4
-.\" Language: English
-.\"
-.TH "SMBPASSWD" "5" "08/09/2022" "Samba 4\&.16\&.4" "File Formats and Conventions"
-.\" -----------------------------------------------------------------
-.\" * Define some portability stuff
-.\" -----------------------------------------------------------------
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.\" http://bugs.debian.org/507673
-.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.ie \n(.g .ds Aq \(aq
-.el .ds Aq '
-.\" -----------------------------------------------------------------
-.\" * set default formatting
-.\" -----------------------------------------------------------------
-.\" disable hyphenation
-.nh
-.\" disable justification (adjust text to left margin only)
-.ad l
-.\" -----------------------------------------------------------------
-.\" * MAIN CONTENT STARTS HERE *
-.\" -----------------------------------------------------------------
-.SH "NAME"
-smbpasswd \- The Samba encrypted password file
-.SH "SYNOPSIS"
-.PP
-smbpasswd
-.SH "DESCRIPTION"
-.PP
-This tool is part of the
-\fBsamba\fR(7)
-suite\&.
-.PP
-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\&.
-.SH "FILE FORMAT"
-.PP
-The format of the smbpasswd file used by Samba 2\&.2 is very similar to the familiar Unix
-passwd(5)
-file\&. It is an ASCII file containing one line for each user\&. Each field within each line is separated from the next by a colon\&. Any entry beginning with \*(Aq#\*(Aq is ignored\&. The smbpasswd file contains the following information for each user:
-.PP
-name
-.RS 4
-This is the user name\&. It must be a name that already exists in the standard UNIX passwd file\&.
-.RE
-.PP
-uid
-.RS 4
-This is the UNIX uid\&. 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\&.
-.RE
-.PP
-Lanman Password Hash
-.RS 4
-This is the LANMAN hash of the user\*(Aqs password, encoded as 32 hex digits\&. The LANMAN hash is created by DES encrypting a well known string with the user\*(Aqs password as the DES key\&. This is the same password used by Windows 95/98 machines\&. Note that this password hash is regarded as weak as it is vulnerable to dictionary attacks and if two users choose the same password this entry will be identical (i\&.e\&. the password is not "salted" as the UNIX password is)\&. If the user has a null password this field will contain the characters "NO PASSWORD" as the start of the hex string\&. If the hex string is equal to 32 \*(AqX\*(Aq characters then the user\*(Aqs account is marked as
-\fBdisabled\fR
-and the user will not be able to log onto the Samba server\&.
-.sp
-\fIWARNING !!\fR
-Note that, due to the challenge\-response nature of the SMB/CIFS authentication protocol, anyone with a knowledge of this password hash will be able to impersonate the user on the network\&. For this reason these hashes are known as
-\fIplain text equivalents\fR
-and must
-\fINOT\fR
-be made available to anyone but the root user\&. 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\&.
-.RE
-.PP
-NT Password Hash
-.RS 4
-This is the Windows NT hash of the user\*(Aqs password, encoded as 32 hex digits\&. The Windows NT hash is created by taking the user\*(Aqs password as represented in 16\-bit, little\-endian UNICODE and then applying the MD4 (internet rfc1321) hashing algorithm to it\&.
-.sp
-This password hash is considered more secure than the LANMAN Password Hash as it preserves the case of the password and uses a much higher quality hashing algorithm\&. However, it is still the case that if two users choose the same password this entry will be identical (i\&.e\&. the password is not "salted" as the UNIX password is)\&.
-.sp
-\fIWARNING !!\fR\&. Note that, due to the challenge\-response nature of the SMB/CIFS authentication protocol, anyone with a knowledge of this password hash will be able to impersonate the user on the network\&. For this reason these hashes are known as
-\fIplain text equivalents\fR
-and must
-\fINOT\fR
-be made available to anyone but the root user\&. 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\&.
-.RE
-.PP
-Account Flags
-.RS 4
-This section contains flags that describe the attributes of the users account\&. This field is bracketed by \*(Aq[\*(Aq and \*(Aq]\*(Aq characters and is always 13 characters in length (including the \*(Aq[\*(Aq and \*(Aq]\*(Aq characters)\&. The contents of this field may be any of the following characters:
-.RS
-.sp
-.RS 4
-.ie n \{\
-\h'-04'\(bu\h'+03'\c
-.\}
-.el \{\
-.sp -1
-.IP \(bu 2.3
-.\}
-\fIU\fR
-\- This means this is a "User" account, i\&.e\&. an ordinary user\&.
-.RE
-.sp
-.RS 4
-.ie n \{\
-\h'-04'\(bu\h'+03'\c
-.\}
-.el \{\
-.sp -1
-.IP \(bu 2.3
-.\}
-\fIN\fR
-\- This means the account has no password (the passwords in the fields LANMAN Password Hash and NT Password Hash are ignored)\&. Note that this will only allow users to log on with no password if the
-\fI null passwords\fR
-parameter is set in the
-\fBsmb.conf\fR(5)
-config file\&.
-.RE
-.sp
-.RS 4
-.ie n \{\
-\h'-04'\(bu\h'+03'\c
-.\}
-.el \{\
-.sp -1
-.IP \(bu 2.3
-.\}
-\fID\fR
-\- This means the account is disabled and no SMB/CIFS logins will be allowed for this user\&.
-.RE
-.sp
-.RS 4
-.ie n \{\
-\h'-04'\(bu\h'+03'\c
-.\}
-.el \{\
-.sp -1
-.IP \(bu 2.3
-.\}
-\fIX\fR
-\- This means the password does not expire\&.
-.RE
-.sp
-.RS 4
-.ie n \{\
-\h'-04'\(bu\h'+03'\c
-.\}
-.el \{\
-.sp -1
-.IP \(bu 2.3
-.\}
-\fIW\fR
-\- This means this account is a "Workstation Trust" account\&. This kind of account is used in the Samba PDC code stream to allow Windows NT Workstations and Servers to join a Domain hosted by a Samba PDC\&.
-.RE
-.sp
-.RE
-Other flags may be added as the code is extended in future\&. The rest of this field space is filled in with spaces\&. For further information regarding the flags that are supported please refer to the man page for the
-pdbedit
-command\&.
-.RE
-.PP
-Last Change Time
-.RS 4
-This field consists of the time the account was last modified\&. It consists of the characters \*(AqLCT\-\*(Aq (standing for "Last Change Time") followed by a numeric encoding of the UNIX time in seconds since the epoch (1970) that the last change was made\&.
-.RE
-.PP
-All other colon separated fields are ignored at this time\&.
-.SH "VERSION"
-.PP
-This man page is part of version 4\&.16\&.4 of the Samba suite\&.
-.SH "SEE ALSO"
-.PP
-\fBsmbpasswd\fR(8),
-\fBSamba\fR(7), and the Internet RFC1321 for details on the MD4 algorithm\&.
-.SH "AUTHOR"
-.PP
-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\&.