771 lines
20 KiB
Plaintext
771 lines
20 KiB
Plaintext
'\" t
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.\" Title: useradd
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.\" Author: Julianne Frances Haugh
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 01/12/2019
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.\" Manual: Comandi per la gestione del sistema
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.\" Source: shadow-utils 4.8
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.\" Language: Italian
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.\"
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.TH "USERADD" "8" "01/12/2019" "shadow\-utils 4\&.8" "Comandi per la gestione del si"
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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 "NOME"
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useradd \- crea un nuovo utente o aggiorna le informazioni predefinite per i nuovi utenti
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.SH "SINOSSI"
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.HP \w'\fBuseradd\fR\ 'u
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\fBuseradd\fR [\fIopzioni\fR] \fILOGIN\fR
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.HP \w'\fBuseradd\fR\ 'u
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\fBuseradd\fR \-D
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.HP \w'\fBuseradd\fR\ 'u
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\fBuseradd\fR \-D [\fIopzioni\fR]
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.SH "DESCRIZIONE"
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.PP
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When invoked without the
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\fB\-D\fR
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option, the
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\fBuseradd\fR
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command creates a new user account using the values specified on the command line plus the default values from the system\&. Depending on command line options, the
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\fBuseradd\fR
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command will update system files and may also create the new user\*(Aqs home directory and copy initial files\&.
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.PP
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By default, a group will also be created for the new user (see
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\fB\-g\fR,
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\fB\-N\fR,
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\fB\-U\fR, and
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\fBUSERGROUPS_ENAB\fR)\&.
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.SH "OPZIONI"
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.PP
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The options which apply to the
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\fBuseradd\fR
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command are:
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.PP
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\fB\-\-badname\fR\ \&
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.RS 4
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Allow names that do not conform to standards\&.
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.RE
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.PP
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\fB\-b\fR, \fB\-\-base\-dir\fR\ \&\fIBASE_DIR\fR
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.RS 4
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The default base directory for the system if
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\fB\-d\fR\ \&\fIHOME_DIR\fR
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is not specified\&.
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\fIBASE_DIR\fR
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is concatenated with the account name to define the home directory\&. If the
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\fB\-m\fR
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option is not used,
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\fIBASE_DIR\fR
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must exist\&.
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.sp
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If this option is not specified,
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\fBuseradd\fR
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will use the base directory specified by the
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\fBHOME\fR
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variable in
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/etc/default/useradd, or
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/home
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by default\&.
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.RE
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.PP
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\fB\-c\fR, \fB\-\-comment\fR\ \&\fICOMMENT\fR
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.RS 4
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Un testo qualsiasi\&. Di norma \(`e una breve descrizione del login, ed \(`e attualmente usato come nome completo dell\*(Aqutente\&.
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.RE
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.PP
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\fB\-d\fR, \fB\-\-home\-dir\fR\ \&\fIHOME_DIR\fR
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.RS 4
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The new user will be created using
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\fIHOME_DIR\fR
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as the value for the user\*(Aqs login directory\&. The default is to append the
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\fILOGIN\fR
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name to
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\fIBASE_DIR\fR
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and use that as the login directory name\&. The directory
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\fIHOME_DIR\fR
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does not have to exist but will not be created if it is missing\&.
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.RE
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.PP
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\fB\-D\fR, \fB\-\-defaults\fR
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.RS 4
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Vedere oltre, la sezione \(FoCambiare i valori predefiniti\(Fc\&.
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.RE
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.PP
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\fB\-e\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
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.RS 4
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The date on which the user account will be disabled\&. The date is specified in the format
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\fIYYYY\-MM\-DD\fR\&.
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.sp
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If not specified,
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\fBuseradd\fR
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will use the default expiry date specified by the
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\fBEXPIRE\fR
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variable in
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/etc/default/useradd, or an empty string (no expiry) by default\&.
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.RE
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.PP
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\fB\-f\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
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.RS 4
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Il numero di giorni dopo la scadenza della password prima che l\*(Aqaccount venga permanentemente disabilitato\&. Un valore pari a 0 disabilita l\*(Aqaccount non appena la password \(`e scaduta, ed un valore pari a \-1 disabilita questa funzionalit\(`a\&.
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.sp
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If not specified,
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\fBuseradd\fR
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will use the default inactivity period specified by the
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\fBINACTIVE\fR
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variable in
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/etc/default/useradd, or \-1 by default\&.
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.RE
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.PP
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\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGROUP\fR
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.RS 4
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Il nome o numero del gruppo di connessione iniziale dell\*(Aqutente\&. Il nome del gruppo deve esistere\&. Un numero di gruppo deve riferirsi ad un gruppo gi\(`a esistente\&.
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.sp
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If not specified, the behavior of
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\fBuseradd\fR
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will depend on the
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\fBUSERGROUPS_ENAB\fR
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variable in
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/etc/login\&.defs\&. If this variable is set to
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\fIyes\fR
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(or
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\fB\-U/\-\-user\-group\fR
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is specified on the command line), a group will be created for the user, with the same name as her loginname\&. If the variable is set to
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\fIno\fR
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(or
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\fB\-N/\-\-no\-user\-group\fR
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is specified on the command line), useradd will set the primary group of the new user to the value specified by the
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\fBGROUP\fR
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variable in
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/etc/default/useradd, or 100 by default\&.
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.RE
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.PP
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\fB\-G\fR, \fB\-\-groups\fR\ \&\fIGROUP1\fR[\fI,GROUP2,\&.\&.\&.\fR[\fI,GROUPN\fR]]]
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.RS 4
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A list of supplementary groups which the user is also a member of\&. Each group is separated from the next by a comma, with no intervening whitespace\&. The groups are subject to the same restrictions as the group given with the
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\fB\-g\fR
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option\&. The default is for the user to belong only to the initial group\&.
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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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Mostra un messaggio di aiuto ed esce\&.
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.RE
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.PP
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\fB\-k\fR, \fB\-\-skel\fR\ \&\fISKEL_DIR\fR
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.RS 4
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The skeleton directory, which contains files and directories to be copied in the user\*(Aqs home directory, when the home directory is created by
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\fBuseradd\fR\&.
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.sp
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This option is only valid if the
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\fB\-m\fR
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(or
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\fB\-\-create\-home\fR) option is specified\&.
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.sp
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If this option is not set, the skeleton directory is defined by the
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\fBSKEL\fR
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variable in
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/etc/default/useradd
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or, by default,
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/etc/skel\&.
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.sp
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Se possibile vengono copiate le ACL e gli attributi estesi\&.
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.RE
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.PP
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\fB\-K\fR, \fB\-\-key\fR\ \&\fIKEY\fR=\fIVALUE\fR
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.RS 4
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Overrides
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/etc/login\&.defs
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defaults (\fBUID_MIN\fR,
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\fBUID_MAX\fR,
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\fBUMASK\fR,
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\fBPASS_MAX_DAYS\fR
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and others)\&.
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Example:
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\fB\-K\fR\ \&\fIPASS_MAX_DAYS\fR=\fI\-1\fR
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can be used when creating system account to turn off password aging, even though system account has no password at all\&. Multiple
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\fB\-K\fR
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options can be specified, e\&.g\&.:
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\fB\-K\fR\ \&\fIUID_MIN\fR=\fI100\fR\ \&
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\fB\-K\fR\ \&\fIUID_MAX\fR=\fI499\fR
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.RE
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.PP
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\fB\-l\fR, \fB\-\-no\-log\-init\fR
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.RS 4
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Non aggiunge l\*(Aqutente ai database \(Folastlog\(Fc e \(Fofaillog\(Fc\&.
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.sp
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By default, the user\*(Aqs entries in the lastlog and faillog databases are reset to avoid reusing the entry from a previously deleted user\&.
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.RE
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.PP
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\fB\-m\fR, \fB\-\-create\-home\fR
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.RS 4
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Create the user\*(Aqs home directory if it does not exist\&. The files and directories contained in the skeleton directory (which can be defined with the
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\fB\-k\fR
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option) will be copied to the home directory\&.
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.sp
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By default, if this option is not specified and
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\fBCREATE_HOME\fR
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is not enabled, no home directories are created\&.
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.RE
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.PP
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\fB\-M\fR, \fB\-\-no\-create\-home\fR
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.RS 4
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Do no create the user\*(Aqs home directory, even if the system wide setting from
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/etc/login\&.defs
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(\fBCREATE_HOME\fR) is set to
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\fIyes\fR\&.
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.RE
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.PP
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\fB\-N\fR, \fB\-\-no\-user\-group\fR
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.RS 4
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Do not create a group with the same name as the user, but add the user to the group specified by the
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\fB\-g\fR
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option or by the
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\fBGROUP\fR
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variable in
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/etc/default/useradd\&.
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.sp
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The default behavior (if the
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\fB\-g\fR,
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\fB\-N\fR, and
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\fB\-U\fR
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options are not specified) is defined by the
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\fBUSERGROUPS_ENAB\fR
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variable in
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/etc/login\&.defs\&.
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.RE
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.PP
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\fB\-o\fR, \fB\-\-non\-unique\fR
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.RS 4
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Permette la creazione di un utente con un UID duplicato (non unico)\&.
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.sp
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This option is only valid in combination with the
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\fB\-u\fR
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option\&.
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.RE
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.PP
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\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
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.RS 4
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The encrypted password, as returned by
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\fBcrypt\fR(3)\&. The default is to disable the password\&.
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.sp
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\fBNote:\fR
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This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
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.sp
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Ci si deve accertare che la password rispetti le norme delle password del sistema\&.
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.RE
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.PP
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\fB\-r\fR, \fB\-\-system\fR
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.RS 4
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Crea un account di sistema\&.
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.sp
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System users will be created with no aging information in
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/etc/shadow, and their numeric identifiers are chosen in the
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\fBSYS_UID_MIN\fR\-\fBSYS_UID_MAX\fR
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range, defined in
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/etc/login\&.defs, instead of
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\fBUID_MIN\fR\-\fBUID_MAX\fR
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(and their
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\fBGID\fR
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counterparts for the creation of groups)\&.
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.sp
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Note that
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\fBuseradd\fR
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will not create a home directory for such a user, regardless of the default setting in
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/etc/login\&.defs
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(\fBCREATE_HOME\fR)\&. You have to specify the
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\fB\-m\fR
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options if you want a home directory for a system account to be created\&.
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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\&.
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.RE
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.PP
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\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
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.RS 4
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Apply changes in the
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\fIPREFIX_DIR\fR
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directory and use the configuration files from the
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\fIPREFIX_DIR\fR
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directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
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.RE
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.PP
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\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
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.RS 4
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The name of the user\*(Aqs login shell\&. The default is to leave this field blank, which causes the system to select the default login shell specified by the
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\fBSHELL\fR
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variable in
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/etc/default/useradd, or an empty string by default\&.
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.RE
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.PP
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\fB\-u\fR, \fB\-\-uid\fR\ \&\fIUID\fR
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.RS 4
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The numerical value of the user\*(Aqs ID\&. This value must be unique, unless the
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\fB\-o\fR
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option is used\&. The value must be non\-negative\&. The default is to use the smallest ID value greater than or equal to
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\fBUID_MIN\fR
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and greater than every other user\&.
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.sp
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See also the
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\fB\-r\fR
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option and the
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\fBUID_MAX\fR
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description\&.
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.RE
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.PP
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\fB\-U\fR, \fB\-\-user\-group\fR
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.RS 4
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Crea un gruppo con lo stesso nome dell\*(Aqutente e aggiunge l\*(Aqutente al gruppo stesso\&.
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.sp
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The default behavior (if the
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\fB\-g\fR,
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\fB\-N\fR, and
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\fB\-U\fR
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options are not specified) is defined by the
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\fBUSERGROUPS_ENAB\fR
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variable in
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/etc/login\&.defs\&.
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.RE
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.PP
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\fB\-Z\fR, \fB\-\-selinux\-user\fR\ \&\fISEUSER\fR
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.RS 4
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L\*(Aqutente SELinux per questo login utente\&. Lasciando questo campo vuoto si fa in modo che il sistema selezioni automaticamente l\*(Aqutente SELinux\&.
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.RE
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.SS "Cambiare i valori predefiniti"
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.PP
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When invoked with only the
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\fB\-D\fR
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option,
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\fBuseradd\fR
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will display the current default values\&. When invoked with
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\fB\-D\fR
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plus other options,
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\fBuseradd\fR
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will update the default values for the specified options\&. Valid default\-changing options are:
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.PP
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\fB\-b\fR, \fB\-\-base\-dir\fR\ \&\fIBASE_DIR\fR
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.RS 4
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The path prefix for a new user\*(Aqs home directory\&. The user\*(Aqs name will be affixed to the end of
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\fIBASE_DIR\fR
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to form the new user\*(Aqs home directory name, if the
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\fB\-d\fR
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option is not used when creating a new account\&.
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.sp
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This option sets the
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\fBHOME\fR
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variable in
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/etc/default/useradd\&.
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.RE
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.PP
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\fB\-e\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
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.RS 4
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La data in cui l\*(Aqaccount dell\*(Aqutente verr\(`a disabilitato\&.
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.sp
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This option sets the
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\fBEXPIRE\fR
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variable in
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/etc/default/useradd\&.
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.RE
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.PP
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\fB\-f\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
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.RS 4
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Il numero di giorni dopo la scadenza di una password prima che l\*(Aqaccount venga disabilitato\&.
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.sp
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This option sets the
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\fBINACTIVE\fR
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variable in
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/etc/default/useradd\&.
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.RE
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.PP
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\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGROUP\fR
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.RS 4
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The group name or ID for a new user\*(Aqs initial group (when the
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\fB\-N/\-\-no\-user\-group\fR
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is used or when the
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\fBUSERGROUPS_ENAB\fR
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variable is set to
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\fIno\fR
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in
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/etc/login\&.defs)\&. The named group must exist, and a numerical group ID must have an existing entry\&.
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.sp
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This option sets the
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\fBGROUP\fR
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variable in
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/etc/default/useradd\&.
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.RE
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.PP
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\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
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.RS 4
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Il nome della shell di login per il nuovo utente\&.
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.sp
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This option sets the
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\fBSHELL\fR
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variable in
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/etc/default/useradd\&.
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.RE
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.SH "NOTE"
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.PP
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The system administrator is responsible for placing the default user files in the
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/etc/skel/
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directory (or any other skeleton directory specified in
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/etc/default/useradd
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or on the command line)\&.
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.SH "AVVISI/CAVEAT"
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.PP
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Non \(`e possibile aggiungere un utente ad un gruppo NIS o LDAP\&. Questo deve essere fatto sul server corrispondente\&.
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.PP
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Similarly, if the username already exists in an external user database such as NIS or LDAP,
|
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\fBuseradd\fR
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will deny the user account creation request\&.
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.PP
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I nomi utente devono iniziare con una lettera minuscola o un underscore, seguiti da lettere minuscole, cifre numeriche, underscore o trattini\&. Possono terminare con il simbolo del dollaro\&. In termini di espressioni regolari: [a\-z_][a\-z0\-9_\-]*[$]?
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.PP
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I nomi utente non possono eccedere i 32 caratteri di lunghezza\&.
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.SH "CONFIGURAZIONE"
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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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.PP
|
|
\fBCREATE_HOME\fR (boolean)
|
|
.RS 4
|
|
Indica se per i nuovi utenti va creata la directory home\&.
|
|
.sp
|
|
Questa impostazione non viene applicata agli utenti di sistema e pu\(`o essere modificata sulla riga di comando\&.
|
|
.RE
|
|
.PP
|
|
\fBGID_MAX\fR (number), \fBGID_MIN\fR (number)
|
|
.RS 4
|
|
Range of group IDs used for the creation of regular groups by
|
|
\fBuseradd\fR,
|
|
\fBgroupadd\fR, or
|
|
\fBnewusers\fR\&.
|
|
.sp
|
|
The default value for
|
|
\fBGID_MIN\fR
|
|
(resp\&.
|
|
\fBGID_MAX\fR) is 1000 (resp\&. 60000)\&.
|
|
.RE
|
|
.PP
|
|
\fBLASTLOG_UID_MAX\fR (number)
|
|
.RS 4
|
|
Highest user ID number for which the lastlog entries should be updated\&. As higher user IDs are usually tracked by remote user identity and authentication services there is no need to create a huge sparse lastlog file for them\&.
|
|
.sp
|
|
No
|
|
\fBLASTLOG_UID_MAX\fR
|
|
option present in the configuration means that there is no user ID limit for writing lastlog entries\&.
|
|
.RE
|
|
.PP
|
|
\fBMAIL_DIR\fR (string)
|
|
.RS 4
|
|
La directory di spool per la posta\&. Questa \(`e necessaria per manipolare la casella di posta quando il corrispondente account utente viene modificato o cancellato\&. Se non \(`e specificata viene utilizzato un valore impostato al momento della compilazione\&.
|
|
.RE
|
|
.PP
|
|
\fBMAIL_FILE\fR (string)
|
|
.RS 4
|
|
Imposta la posizione delle caselle di posta degli utenti relative alla loro directory home\&.
|
|
.RE
|
|
.PP
|
|
The
|
|
\fBMAIL_DIR\fR
|
|
and
|
|
\fBMAIL_FILE\fR
|
|
variables are used by
|
|
\fBuseradd\fR,
|
|
\fBusermod\fR, and
|
|
\fBuserdel\fR
|
|
to create, move, or delete the user\*(Aqs mail spool\&.
|
|
.PP
|
|
If
|
|
\fBMAIL_CHECK_ENAB\fR
|
|
is set to
|
|
\fIyes\fR, they are also used to define the
|
|
\fBMAIL\fR
|
|
environment variable\&.
|
|
.PP
|
|
\fBMAX_MEMBERS_PER_GROUP\fR (number)
|
|
.RS 4
|
|
Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
|
|
/etc/group
|
|
(with the same name, same password, and same GID)\&.
|
|
.sp
|
|
Il valore predefinito \(`e 0, che non pone nessun limite al numero di membri per gruppo\&.
|
|
.sp
|
|
Questa opzione (dividi gruppo) permette di limitare la lunghezza delle righe nel file \(Fogroup\(Fc\&. Questo \(`e utile per essere certi che le righe per gruppi NIS non eccedano i 1024 caratteri\&.
|
|
.sp
|
|
Se si deve impostare questo limite, si pu\(`o usare 25\&.
|
|
.sp
|
|
Nota: la divisione dei gruppi potrebbe non essere supportata da ogni strumento (anche all\*(Aqinterno del pacchetto Shadow)\&. Non si dovrebbe utilizzare questa variabile a meno di esserci forzati\&.
|
|
.RE
|
|
.PP
|
|
\fBPASS_MAX_DAYS\fR (number)
|
|
.RS 4
|
|
Il numero massimo di giorni che una password pu\(`o essere utilizzata\&. Se la password \(`e pi\(`u vecchia verr\(`a imposto il suo cambiamento\&. Se non specificato viene assunto \-1 (che disabilita questo controllo)\&.
|
|
.RE
|
|
.PP
|
|
\fBPASS_MIN_DAYS\fR (number)
|
|
.RS 4
|
|
Il numero minimo di giorni tra due cambiamenti di password\&. Ogni tentativo di cambiare la password prima di questo periodo verr\(`a rifiutato\&. Se non specificato viene assunto \-1 (che disabilita questo controllo)\&.
|
|
.RE
|
|
.PP
|
|
\fBPASS_WARN_AGE\fR (number)
|
|
.RS 4
|
|
Il numero di giorni per i quali un utente va avvisato che la sua password sta per scadere\&. Se zero l\*(Aqutente viene avvisato solo alla scadenza\&. Un valore negativo indica che non si deve avvisare mai\&. Se non specificato allora non c\*(Aq\(`e nessun avviso\&.
|
|
.RE
|
|
.PP
|
|
\fBSUB_GID_MIN\fR (number), \fBSUB_GID_MAX\fR (number), \fBSUB_GID_COUNT\fR (number)
|
|
.RS 4
|
|
If
|
|
/etc/subuid
|
|
exists, the commands
|
|
\fBuseradd\fR
|
|
and
|
|
\fBnewusers\fR
|
|
(unless the user already have subordinate group IDs) allocate
|
|
\fBSUB_GID_COUNT\fR
|
|
unused group IDs from the range
|
|
\fBSUB_GID_MIN\fR
|
|
to
|
|
\fBSUB_GID_MAX\fR
|
|
for each new user\&.
|
|
.sp
|
|
The default values for
|
|
\fBSUB_GID_MIN\fR,
|
|
\fBSUB_GID_MAX\fR,
|
|
\fBSUB_GID_COUNT\fR
|
|
are respectively 100000, 600100000 and 65536\&.
|
|
.RE
|
|
.PP
|
|
\fBSUB_UID_MIN\fR (number), \fBSUB_UID_MAX\fR (number), \fBSUB_UID_COUNT\fR (number)
|
|
.RS 4
|
|
If
|
|
/etc/subuid
|
|
exists, the commands
|
|
\fBuseradd\fR
|
|
and
|
|
\fBnewusers\fR
|
|
(unless the user already have subordinate user IDs) allocate
|
|
\fBSUB_UID_COUNT\fR
|
|
unused user IDs from the range
|
|
\fBSUB_UID_MIN\fR
|
|
to
|
|
\fBSUB_UID_MAX\fR
|
|
for each new user\&.
|
|
.sp
|
|
The default values for
|
|
\fBSUB_UID_MIN\fR,
|
|
\fBSUB_UID_MAX\fR,
|
|
\fBSUB_UID_COUNT\fR
|
|
are respectively 100000, 600100000 and 65536\&.
|
|
.RE
|
|
.PP
|
|
\fBSYS_GID_MAX\fR (number), \fBSYS_GID_MIN\fR (number)
|
|
.RS 4
|
|
Range of group IDs used for the creation of system groups by
|
|
\fBuseradd\fR,
|
|
\fBgroupadd\fR, or
|
|
\fBnewusers\fR\&.
|
|
.sp
|
|
The default value for
|
|
\fBSYS_GID_MIN\fR
|
|
(resp\&.
|
|
\fBSYS_GID_MAX\fR) is 101 (resp\&.
|
|
\fBGID_MIN\fR\-1)\&.
|
|
.RE
|
|
.PP
|
|
\fBSYS_UID_MAX\fR (number), \fBSYS_UID_MIN\fR (number)
|
|
.RS 4
|
|
Range of user IDs used for the creation of system users by
|
|
\fBuseradd\fR
|
|
or
|
|
\fBnewusers\fR\&.
|
|
.sp
|
|
The default value for
|
|
\fBSYS_UID_MIN\fR
|
|
(resp\&.
|
|
\fBSYS_UID_MAX\fR) is 101 (resp\&.
|
|
\fBUID_MIN\fR\-1)\&.
|
|
.RE
|
|
.PP
|
|
\fBUID_MAX\fR (number), \fBUID_MIN\fR (number)
|
|
.RS 4
|
|
Range of user IDs used for the creation of regular users by
|
|
\fBuseradd\fR
|
|
or
|
|
\fBnewusers\fR\&.
|
|
.sp
|
|
The default value for
|
|
\fBUID_MIN\fR
|
|
(resp\&.
|
|
\fBUID_MAX\fR) is 1000 (resp\&. 60000)\&.
|
|
.RE
|
|
.PP
|
|
\fBUMASK\fR (number)
|
|
.RS 4
|
|
La maschera di permessi alla creazione dei file \(`e inizializzata con questo valore\&. Se non specificato la maschera viene impostata a 022\&.
|
|
.sp
|
|
\fBuseradd\fR
|
|
and
|
|
\fBnewusers\fR
|
|
use this mask to set the mode of the home directory they create
|
|
.sp
|
|
It is also used by
|
|
\fBlogin\fR
|
|
to define users\*(Aq initial umask\&. Note that this mask can be overridden by the user\*(Aqs GECOS line (if
|
|
\fBQUOTAS_ENAB\fR
|
|
is set) or by the specification of a limit with the
|
|
\fIK\fR
|
|
identifier in
|
|
\fBlimits\fR(5)\&.
|
|
.RE
|
|
.PP
|
|
\fBUSERGROUPS_ENAB\fR (boolean)
|
|
.RS 4
|
|
Abilita l\*(Aqimpostazione dei bit di gruppo di umask in modo che siano gli stessi dei bit del proprietario (esempio: 022 \-> 002, 077 \-> 007) per utenti non root a condizione che uid e gid siano identici e che il nome utente sia lo stesso del gruppo primario\&.
|
|
.sp
|
|
If set to
|
|
\fIyes\fR,
|
|
\fBuserdel\fR
|
|
will remove the user\*(Aqs group if it contains no more members, and
|
|
\fBuseradd\fR
|
|
will create by default a group with the name of the user\&.
|
|
.RE
|
|
.SH "FILE"
|
|
.PP
|
|
/etc/passwd
|
|
.RS 4
|
|
Informazioni sugli account utente\&.
|
|
.RE
|
|
.PP
|
|
/etc/shadow
|
|
.RS 4
|
|
Informazioni sicure sugli account utente\&.
|
|
.RE
|
|
.PP
|
|
/etc/group
|
|
.RS 4
|
|
Informazioni sugli account di gruppo\&.
|
|
.RE
|
|
.PP
|
|
/etc/gshadow
|
|
.RS 4
|
|
Informazioni sicure sugli account di gruppo\&.
|
|
.RE
|
|
.PP
|
|
/etc/default/useradd
|
|
.RS 4
|
|
Valori predefiniti per la creazione dell\*(Aqaccount\&.
|
|
.RE
|
|
.PP
|
|
/etc/skel/
|
|
.RS 4
|
|
Directory contenente i file predefiniti\&.
|
|
.RE
|
|
.PP
|
|
/etc/subgid
|
|
.RS 4
|
|
Per user subordinate group IDs\&.
|
|
.RE
|
|
.PP
|
|
/etc/subuid
|
|
.RS 4
|
|
Per user subordinate user IDs\&.
|
|
.RE
|
|
.PP
|
|
/etc/login\&.defs
|
|
.RS 4
|
|
Configurazione del pacchetto password shadow
|
|
.RE
|
|
.SH "VALORI RESTITUITI"
|
|
.PP
|
|
The
|
|
\fBuseradd\fR
|
|
command exits with the following values:
|
|
.PP
|
|
\fI0\fR
|
|
.RS 4
|
|
success
|
|
.RE
|
|
.PP
|
|
\fI1\fR
|
|
.RS 4
|
|
can\*(Aqt update password file
|
|
.RE
|
|
.PP
|
|
\fI2\fR
|
|
.RS 4
|
|
invalid command syntax
|
|
.RE
|
|
.PP
|
|
\fI3\fR
|
|
.RS 4
|
|
invalid argument to option
|
|
.RE
|
|
.PP
|
|
\fI4\fR
|
|
.RS 4
|
|
UID already in use (and no
|
|
\fB\-o\fR)
|
|
.RE
|
|
.PP
|
|
\fI6\fR
|
|
.RS 4
|
|
specified group doesn\*(Aqt exist
|
|
.RE
|
|
.PP
|
|
\fI9\fR
|
|
.RS 4
|
|
username already in use
|
|
.RE
|
|
.PP
|
|
\fI10\fR
|
|
.RS 4
|
|
can\*(Aqt update group file
|
|
.RE
|
|
.PP
|
|
\fI12\fR
|
|
.RS 4
|
|
can\*(Aqt create home directory
|
|
.RE
|
|
.PP
|
|
\fI14\fR
|
|
.RS 4
|
|
can\*(Aqt update SELinux user mapping
|
|
.RE
|
|
.SH "VEDERE ANCHE"
|
|
.PP
|
|
\fBchfn\fR(1),
|
|
\fBchsh\fR(1),
|
|
\fBpasswd\fR(1),
|
|
\fBcrypt\fR(3),
|
|
\fBgroupadd\fR(8),
|
|
\fBgroupdel\fR(8),
|
|
\fBgroupmod\fR(8),
|
|
\fBlogin.defs\fR(5),
|
|
\fBnewusers\fR(8),
|
|
\fBsubgid\fR(5), \fBsubuid\fR(5),
|
|
\fBuserdel\fR(8),
|
|
\fBusermod\fR(8)\&.
|