Hi Serge "Serge E. Hallyn" <[email protected]> schrieb am 22. Februar 2022
> > With the exception of the "inactivity onset" "begin of inactivity" > > "grace period" problem, I would be able to edit the xml-file. But I > > think it spares you not much work. I re-editied the useradd.8.xml, "grace period" has been introduced. The changes reflect our discussion. I hope this version will do it. Thanks Best regards Markus
--- shadow-4.8.1/man/useradd.8.xml 2020-01-17 16:47:56.000000000 +0100
+++ shadow-4.8.1_mh/man/useradd.8.xml 2022-02-23 12:05:52.330846912 +0100
@@ -143,11 +143,11 @@
</term>
<listitem>
<para>
- The default base directory for the system if <option>-d</option> <replaceable>HOME_DIR</replaceable> is not specified.
- <replaceable>BASE_DIR</replaceable> is
- concatenated with the account name to define the home directory.
- If the <option>-m</option> option is not used,
- <replaceable>BASE_DIR</replaceable> must exist.
+ The default base directory for the system if
+ <option>-d</option> <replaceable>HOME_DIR</replaceable>
+ is not specified. <replaceable>BASE_DIR</replaceable> is
+ concatenated with the account name to define the home
+ directory.
</para>
<para>
If this option is not specified, <command>useradd</command>
@@ -165,7 +165,7 @@
<listitem>
<para>
Any text string. It is generally a short description of the
- login, and is currently used as the field for the user's full
+ account, and is currently used as the field for the user's full
name.
</para>
</listitem>
@@ -177,12 +177,14 @@
<listitem>
<para>
The new user will be created using
- <replaceable>HOME_DIR</replaceable> as the value for the user's
- login directory. The default is to append the
+ <replaceable>HOME_DIR</replaceable> as the value for the
+ user's login directory. The default is to append the
<replaceable>LOGIN</replaceable> name to
- <replaceable>BASE_DIR</replaceable> and use that as the login
- directory name. The directory <replaceable>HOME_DIR</replaceable>
- does not have to exist but will not be created if it is missing.
+ <replaceable>BASE_DIR</replaceable> and use that as the
+ login directory name. If the directory
+ <replaceable>HOME_DIR</replaceable> does not exist, then
+ it will be created unless the <option>-M</option> option
+ is specified.
</para>
</listitem>
</varlistentry>
@@ -219,16 +221,19 @@
</term>
<listitem>
<para>
- The number of days after a password expires until the account is
- permanently disabled. A value of 0 disables the account as soon
- as the password has expired, and a value of -1 disables the
- feature.
+ defines the number of days after the password exceeded its maximum
+ age during which the user may still login by immediately replacing
+ the password. This grace period before the account becomes inactive
+ is stored in the shadow password file. An input of 0 will disable an
+ expired password with no delay. An input of -1 will blank the
+ respective field in the shadow password file. See <citerefentry>
+ <refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum>
+ </citerefentry> for more information.
</para>
<para>
- If not specified, <command>useradd</command> will use the
- default inactivity period specified by the
- <option>INACTIVE</option> variable in
- <filename>/etc/default/useradd</filename>, or -1 by default.
+ If not specified, <command>useradd</command> will use the
+ <option>INACTIVE</option> variable in
+ <filename>/etc/default/useradd</filename>, or, -1 by default.
</para>
</listitem>
</varlistentry>
@@ -238,7 +243,7 @@
</term>
<listitem>
<para>
- The group name or number of the user's initial login group. The
+ The name or the number of the user's primary group. The
group name must exist. A group number must refer to an already
existing group.
</para>
@@ -249,7 +254,7 @@
set to <replaceable>yes</replaceable> (or
<option>-U/--user-group</option> 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
+ name as the loginname. If the variable is set to
<replaceable>no</replaceable> (or
<option>-N/--no-user-group</option> is specified on the
command line), useradd will set the primary group of the new
@@ -315,14 +320,17 @@
(<option>UID_MIN</option>, <option>UID_MAX</option>,
<option>UMASK</option>, <option>PASS_MAX_DAYS</option>
and others).
- <para>
</para>
- Example: <option>-K</option> <replaceable>PASS_MAX_DAYS</replaceable>=<replaceable>-1</replaceable>
- can be used when creating system account to turn off password
- aging, even though system account has no password at all.
- Multiple <option>-K</option> options can be specified, e.g.:
- <option>-K</option> <replaceable>UID_MIN</replaceable>=<replaceable>100</replaceable>
- <option>-K</option> <replaceable>UID_MAX</replaceable>=<replaceable>499</replaceable>
+ <para>
+ Example:
+ <option>-K</option> <replaceable>PASS_MAX_DAYS
+ </replaceable>=<replaceable>-1</replaceable> can be used
+ when creating an account to turn off password aging.
+ Multiple <option>-K</option> options can be specified,
+ e.g.:
+ <option>-K</option> <replaceable>UID_MIN</replaceable>
+ =<replaceable>100</replaceable> <option>-K</option>
+ <replaceable>UID_MAX</replaceable>=<replaceable>499</replaceable>
</para>
<!--para>
Note: <option>-K</option> <replaceable>UID_MIN</replaceable>=<replaceable>10</replaceable>,<replaceable>UID_MAX</replaceable>=<replaceable>499</replaceable>
@@ -398,10 +406,18 @@
<option>-o</option>, <option>--non-unique</option>
</term>
<listitem>
- <para>Allow the creation of a user account with a duplicate (non-unique) UID.</para>
+ <para>
+ allows the creation of an account with an already existing
+ UID.
+ </para>
<para>
This option is only valid in combination with the
- <option>-u</option> option.
+ <option>-u</option> option. As a user identity
+ serves as
+ key to map between users on one hand and permissions, file
+ ownerships and other aspects that determine the system's
+ behavior on the other hand, more than one login name
+ will access the account of the given UID.
</para>
</listitem>
</varlistentry>
@@ -411,13 +427,23 @@
</term>
<listitem>
<para>
- The encrypted password, as returned by <citerefentry>
- <refentrytitle>crypt</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>. The default is to disable the password.
+ defines an initial password for the account. PASSWORD is expected to
+ be encrypted, as returned by <citerefentry><refentrytitle>crypt
+ </refentrytitle><manvolnum>3</manvolnum></citerefentry>. Within a
+ shell script, this option allows to create efficiently
+ batches of users.
+ </para>
+ <para>
+ Without this option, the new account will be locked and
+ with no password defined, i.e. a single exclamation mark
+ in the respective field of
+ <filename>/etc/shadow</filename>. This is a state where the
+ user won't be able to access the account or to define a
+ password himself.
</para>
<para>
- <emphasis role="bold">Note:</emphasis> This option is not
- recommended because the password (or encrypted password) will
+ <emphasis role="bold">Note:</emphasis> Avoid this option on the
+ command line because the password (or encrypted password) will
be visible by users listing the processes.
</para>
<para>
@@ -488,11 +514,11 @@
</term>
<listitem>
<para>
- The name of the user's login shell. The default is to leave this
- field blank, which causes the system to select the default login
- shell specified by the <option>SHELL</option> variable in
- <filename>/etc/default/useradd</filename>, or an empty string
- by default.
+ sets the path to the user's login shell. Without this option,
+ the system will use the <option>SHELL</option> variable specified
+ in <filename>/etc/default/useradd</filename>, or, if that is as
+ well not set, the field for the login shell in <filename>/etc/passwd
+ </filename>remains empty.
</para>
</listitem>
</varlistentry>
@@ -533,13 +559,16 @@
</varlistentry>
<varlistentry>
<term>
- <option>-Z</option>, <option>--selinux-user</option> <replaceable>SEUSER</replaceable>
+ <option>-Z</option>, <option>--selinux-user</option>
+ <replaceable>SEUSER</replaceable>
</term>
<listitem>
<para>
- The SELinux user for the user's login. The default is to leave this
- field blank, which causes the system to select the default SELinux
- user.
+ defines the SELinux user for the new account. Without this
+ option, SELinux uses the default user. Note that the
+ shadow system doesn't store the selinux-user, it uses
+ <citerefentry><refentrytitle>semanage</refentrytitle>
+ <manvolnum>8</manvolnum></citerefentry> for that.
</para>
</listitem>
</varlistentry>
@@ -578,7 +607,7 @@
<option>-e</option>, <option>--expiredate</option> <replaceable>EXPIRE_DATE</replaceable>
</term>
<listitem>
- <para>The date on which the user account is disabled.</para>
+ <para>The date on which newly created user accounts are disabled.</para>
<para>
This option sets the <option>EXPIRE</option> variable in
<filename>/etc/default/useradd</filename>.
@@ -591,8 +620,11 @@
</term>
<listitem>
<para>
- The number of days after a password has expired before the
- account will be disabled.
+ defines a number of days after the password exceeded its maximum
+ age. During this grace period, the user may login by immediately
+ replacing the password. See <citerefentry>
+ <refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum>
+ </citerefentry> for more information.
</para>
<para>
This option sets the <option>INACTIVE</option> variable in
@@ -606,13 +638,13 @@
</term>
<listitem>
<para>
- The group name or ID for a new user's initial group (when
- the <option>-N/--no-user-group</option> is used or when the
- <option>USERGROUPS_ENAB</option> variable is set to
- <replaceable>no</replaceable> in
- <filename>/etc/login.defs</filename>). The named
- group must exist, and a numerical group ID must have an
- existing entry.
+ sets the default primary group for newly created users
+ (when the <option>-N / --no-user-group</option> is used
+ or when the <option>USERGROUPS_ENAB</option> variable in
+ <filename>/etc/login.defs</filename> is set to
+ <replaceable>no</replaceable>). Group names or a
+ numerical group ID are accepted. The named group must
+ exist, and the GID must have an existing entry.
</para>
<para>
This option sets the <option>GROUP</option> variable in
@@ -626,7 +658,7 @@
</term>
<listitem>
<para>
- The name of a new user's login shell.
+ defines the default login shell for new users.
</para>
<para>
This option sets the <option>SHELL</option> variable in
@@ -635,7 +667,6 @@
</listitem>
</varlistentry>
</variablelist>
-
</refsect2>
</refsect1>
@@ -708,55 +739,55 @@
<varlistentry>
<term><filename>/etc/passwd</filename></term>
<listitem>
- <para>User account information.</para>
+ <para>User account information</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/shadow</filename></term>
<listitem>
- <para>Secure user account information.</para>
+ <para>Secure user account information</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/group</filename></term>
<listitem>
- <para>Group account information.</para>
+ <para>Group account information</para>
</listitem>
</varlistentry>
<varlistentry condition="gshadow">
<term><filename>/etc/gshadow</filename></term>
<listitem>
- <para>Secure group account information.</para>
+ <para>Secure group account information</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/default/useradd</filename></term>
<listitem>
- <para>Default values for account creation.</para>
+ <para>Default values for account creation</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/skel/</filename></term>
<listitem>
- <para>Directory containing default files.</para>
+ <para>Directory containing default files</para>
</listitem>
</varlistentry>
<varlistentry condition="subids">
<term><filename>/etc/subgid</filename></term>
<listitem>
- <para>Per user subordinate group IDs.</para>
+ <para>Per user subordinate group IDs</para>
</listitem>
</varlistentry>
<varlistentry condition="subids">
<term><filename>/etc/subuid</filename></term>
<listitem>
- <para>Per user subordinate user IDs.</para>
+ <para>Per user subordinate user IDs</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/login.defs</filename></term>
<listitem>
- <para>Shadow password suite configuration.</para>
+ <para>Shadow password suite configuration</para>
</listitem>
</varlistentry>
</variablelist>
useradd.8.xml
Description: XML document
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