142 lines
3.2 KiB
HTML
142 lines
3.2 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of GSHADOW</TITLE>
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</HEAD><BODY>
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<H1>GSHADOW</H1>
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Section: File Formats and Conversions (5)<BR>Updated: 05/28/2020<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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gshadow - shadowed group file
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<A NAME="lbAC"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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/etc/gshadow
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contains the shadowed information for group accounts.
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<P>
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This file must not be readable by regular users if password security is to be maintained.
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<P>
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Each line of this file contains the following colon-separated fields:
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<P>
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<B>group name</B>
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<DL COMPACT><DT id="1"><DD>
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It must be a valid group name, which exist on the system.
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</DL>
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<P>
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<B>encrypted password</B>
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<DL COMPACT><DT id="2"><DD>
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Refer to
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<B><A HREF="/cgi-bin/man/man2html?3+crypt">crypt</A></B>(3)
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for details on how this string is interpreted.
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<P>
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If the password field contains some string that is not a valid result of
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<B><A HREF="/cgi-bin/man/man2html?3+crypt">crypt</A></B>(3), for instance ! or *, users will not be able to use a unix password to access the group (but group members do not need the password).
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<P>
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The password is used when a user who is not a member of the group wants to gain the permissions of this group (see
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<B><A HREF="/cgi-bin/man/man2html?1+newgrp">newgrp</A></B>(1)).
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<P>
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This field may be empty, in which case only the group members can gain the group permissions.
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<P>
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A password field which starts with an exclamation mark means that the password is locked. The remaining characters on the line represent the password field before the password was locked.
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<P>
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This password supersedes any password specified in
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/etc/group.
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</DL>
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<P>
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<B>administrators</B>
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<DL COMPACT><DT id="3"><DD>
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It must be a comma-separated list of user names.
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<P>
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Administrators can change the password or the members of the group.
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<P>
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Administrators also have the same permissions as the members (see below).
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</DL>
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<P>
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<B>members</B>
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<DL COMPACT><DT id="4"><DD>
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It must be a comma-separated list of user names.
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<P>
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Members can access the group without being prompted for a password.
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<P>
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You should use the same list of users as in
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/etc/group.
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</DL>
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<A NAME="lbAD"> </A>
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<H2>FILES</H2>
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<P>
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/etc/group
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<DL COMPACT><DT id="5"><DD>
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Group account information.
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</DL>
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<P>
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/etc/gshadow
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<DL COMPACT><DT id="6"><DD>
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Secure group account information.
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</DL>
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<P>
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<B><A HREF="/cgi-bin/man/man2html?5+gpasswd">gpasswd</A></B>(5),
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<B><A HREF="/cgi-bin/man/man2html?5+group">group</A></B>(5),
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<B><A HREF="/cgi-bin/man/man2html?8+grpck">grpck</A></B>(8),
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<B><A HREF="/cgi-bin/man/man2html?8+grpconv">grpconv</A></B>(8),
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<B><A HREF="/cgi-bin/man/man2html?1+newgrp">newgrp</A></B>(1).
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="7"><A HREF="#lbAB">NAME</A><DD>
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<DT id="8"><A HREF="#lbAC">DESCRIPTION</A><DD>
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<DT id="9"><A HREF="#lbAD">FILES</A><DD>
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<DT id="10"><A HREF="#lbAE">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:03 GMT, March 31, 2021
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</BODY>
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</HTML>
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