157 lines
4.6 KiB
Plaintext
157 lines
4.6 KiB
Plaintext
'\" t
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.\" Title: chpasswd
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.\" Author: Julianne Frances Haugh
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 08/11/2022
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.\" Manual: Commandes de gestion du syst\(`eme
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.\" Source: shadow-utils 4.13
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.\" Language: French
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.\"
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.TH "CHPASSWD" "8" "08/11/2022" "shadow\-utils 4\&.13" "Commandes de gestion du syst\(`em"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NOM"
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chpasswd \- Mettre \(`a jour des mots de passe par lot
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.SH "SYNOPSIS"
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.HP \w'\fBchpasswd\fR\ 'u
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\fBchpasswd\fR [\fIoptions\fR]
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.SH "DESCRIPTION"
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.PP
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The
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\fBchpasswd\fR
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command reads a list of user name and password pairs from standard input and uses this information to update a group of existing users\&. Each line is of the format:
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.PP
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\fIuser_name\fR:\fIpassword\fR
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.PP
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By default the passwords must be supplied in clear\-text, and are encrypted by
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\fBchpasswd\fR\&. Also the password age will be updated, if present\&.
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.PP
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The default encryption algorithm can be defined for the system with the
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\fBENCRYPT_METHOD\fR
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or
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\fBMD5_CRYPT_ENAB\fR
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variables of
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/etc/login\&.defs, and can be overwritten with the
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\fB\-e\fR,
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\fB\-m\fR, or
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\fB\-c\fR
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options\&.
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.PP
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\fBchpasswd\fR
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first updates all the passwords in memory, and then commits all the changes to disk if no errors occurred for any user\&.
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.PP
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Cette commande est destin\('ee aux gros syst\(`emes pour lesquels un nombre importants de comptes sont cr\('e\('es en une seule fois\&.
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.SH "OPTIONS"
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.PP
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The options which apply to the
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\fBchpasswd\fR
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command are:
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.PP
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\fB\-c\fR, \fB\-\-crypt\-method\fR\ \&\fIMETHOD\fR
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.RS 4
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Utiliser la m\('ethode pr\('ecis\('ee pour chiffrer les mots de passe\&.
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.sp
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Les m\('ethodes disponibles sont DES, MD5, NONE et SHA256 ou SHA512 si votre libc prend en charge ces m\('ethodes\&.
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.sp
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By default (if none of the
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\fB\-c\fR,
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\fB\-m\fR, or
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\fB\-e\fR
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options are specified), the encryption method is defined by the
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\fBENCRYPT_METHOD\fR
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or
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\fBMD5_CRYPT_ENAB\fR
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variables of
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/etc/login\&.defs\&.
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.RE
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.PP
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\fB\-e\fR, \fB\-\-encrypted\fR
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.RS 4
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Indiquer que les mots de passe fournis sont chiffr\('es\&.
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.RE
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.PP
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\fB\-h\fR, \fB\-\-help\fR
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.RS 4
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Afficher un message d\*(Aqaide et quitter\&.
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.RE
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.PP
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\fB\-m\fR, \fB\-\-md5\fR
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.RS 4
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Permettre d\*(Aqutiliser le chiffrement MD5, plut\(^ot que DES, lorsque les mots de passe fournis ne sont pas chiffr\('es\&.
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.RE
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.PP
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\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
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.RS 4
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Apply changes in the
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\fICHROOT_DIR\fR
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directory and use the configuration files from the
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\fICHROOT_DIR\fR
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directory\&. Only absolute paths are supported\&.
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.RE
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.PP
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\fB\-s\fR, \fB\-\-sha\-rounds\fR\ \&\fIROUNDS\fR
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.RS 4
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Utiliser le nombre de rounds pr\('ecis\('e pour chiffrer les mots de passe\&.
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.sp
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La valeur 0 signifie que le syst\(`eme choisira la valeur par d\('efaut du nombre de rounds pour la m\('ethode de chiffrement (5\ \&000)\&.
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.sp
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Une valeur minimale de 1\ \&000 et une valeur maximale de 999\ \&999\ \&999 seront impos\('ees\&.
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.sp
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Vous ne pouvez utiliser cette m\('ethode qu\*(Aqavec les m\('ethodes de chiffrement SHA256 ou SHA512\&.
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.sp
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By default, the number of rounds is defined by the
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\fBSHA_CRYPT_MIN_ROUNDS\fR
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and
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\fBSHA_CRYPT_MAX_ROUNDS\fR
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variables in
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/etc/login\&.defs\&.
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.RE
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.SH "AVERTISSEMENTS"
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.PP
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Pensez \(`a configurer les permissions ou umask afin d\*(Aqemp\(^echer la lecture des fichiers non chiffr\('es par les d\*(Aqautres utilisateurs\&.
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.SH "CONFIGURATION"
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.PP
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The following configuration variables in
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/etc/login\&.defs
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change the behavior of this tool:
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.SH "FICHIERS"
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.PP
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/etc/passwd
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.RS 4
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Informations sur les comptes des utilisateurs\&.
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.RE
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.PP
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/etc/shadow
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.RS 4
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Informations s\('ecuris\('ees sur les comptes utilisateurs\&.
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.RE
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.PP
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/etc/login\&.defs
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.RS 4
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Configuration de la suite des mots de passe cach\('es \(Fo\ \&shadow password\ \&\(Fc\&.
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.RE
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.SH "VOIR AUSSI"
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.PP
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\fBpasswd\fR(1),
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\fBnewusers\fR(8),
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\fBlogin.defs\fR(5),
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\fBuseradd\fR(8)\&.
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