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man: chage clarification

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man/chage.1.xml: Indicate that -d option with a value of 0 forces the
user to change his password. Besides, set an example on how to use -E
option. Finally, add a general note to clarify that chage only takes
charge of local users and another note to indicate that it doesn't check
inconsistencies between shadow and passwd files.
This commit is contained in:
ikerexxe 2021-02-02 10:24:32 +01:00
parent ae169c4046
commit 325bf584ce
1 changed files with 22 additions and 0 deletions
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22
man/chage.1.xml
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@ -102,6 +102,9 @@
Set the number of days since January 1st, 1970 when the password
was last changed. The date may also be expressed in the format
YYYY-MM-DD (or the format more commonly used in your area).
If the <replaceable>LAST_DAY</replaceable> is set to
<emphasis>0</emphasis> the user is forced to change his password
on the next log on.
</para>
</listitem>
</varlistentry>
@ -118,6 +121,13 @@
contact the system administrator before being able to use the
system again.
</para>
<para>
For example the following can be used to set an account to expire
in 180 days:
</para>
<programlisting>
chage -E $(date -d +180days +%Y-%m-%d)
</programlisting>
<para>
Passing the number <emphasis remap='I'>-1</emphasis> as the
<replaceable>EXPIRE_DATE</replaceable> will remove an account
@ -239,6 +249,18 @@
The <command>chage</command> program requires a shadow password file to
be available.
</para>
<para>
The chage program will report only the information from the shadow
password file. This implies that configuration from other sources
(e.g. LDAP or empty password hash field from the passwd file) that
affect the user's login will not be shown in the chage output.
</para>
<para>
The <command>chage</command> program will also not report any
inconsistency between the shadow and passwd files (e.g. missing x in
the passwd file). The <command>pwck</command> can be used to check
for this kind of inconsistencies.
</para>
<para>The <command>chage</command> command is restricted to the root
user, except for the <option>-l</option> option, which may be used by
an unprivileged user to determine when their password or account is due