mirror of https://github.com/mkerrisk/man-pages
42 lines
1.6 KiB
Groff
42 lines
1.6 KiB
Groff
.\" Copyright (c) 1993 Michael Haardt (michael@moria.de),
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.\" Fri Apr 2 11:32:09 MET DST 1993
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" The GNU General Public License's references to "object code"
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.\" and "executables" are to be interpreted as the output of any
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.\" document formatting or typesetting system, including
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.\" intermediate and printed output.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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.\" %%%LICENSE_END
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.\"
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.\" Modified Sun Jul 25 11:06:34 1993 by Rik Faith (faith@cs.unc.edu)
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.\" Corrected Mon Oct 21 17:47:19 EDT 1996 by Eric S. Raymond (esr@thyrsus.com)
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.TH NOLOGIN 5 2017-09-15 "Linux" "Linux Programmer's Manual"
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.SH NAME
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nologin \- prevent unprivileged users from logging into the system
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.SH DESCRIPTION
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If the file \fI/etc/nologin\fP exists and is readable,
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.BR login (1)
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will allow access only to root.
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Other users will
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be shown the contents of this file and their logins will be refused.
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This provides a simple way of temporarily disabling all unprivileged logins.
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.SH FILES
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.I /etc/nologin
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.SH SEE ALSO
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.BR login (1),
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.BR shutdown (8)
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