4 This file was written by Michael K. Johnson <johnsonm@redhat.com>
7 <sect1>The no-login module
14 <tag><bf>Module Name:</bf></tag>
17 <tag><bf>Author:</bf></tag>
18 Written by Michael K. Johnson <johnsonm@redhat.com><newline>
19 (based on code taken from a module written by Andrew G. Morgan
20 <morgan@kernel.org>).
22 <tag><bf>Maintainer:</bf></tag>
23 Michael K. Johnson <johnsonm@redhat.com>
25 <tag><bf>Management groups provided:</bf></tag>
28 <tag><bf>Cryptographically sensitive:</bf></tag>
30 <tag><bf>Security rating:</bf></tag>
32 <tag><bf>Clean code base:</bf></tag>
33 1 warning about dropping const
35 <tag><bf>System dependencies:</bf></tag>
37 <tag><bf>Network aware:</bf></tag>
41 <sect2>Overview of module
44 Provides standard Unix <em/nologin/ authentication.
46 <sect2>Authentication component
51 <tag><bf>Recognized arguments:</bf></tag>
53 <tag><bf>Description:</bf></tag>
55 Provides standard Unix <em/nologin/ authentication. If the file
56 <tt>/etc/nologin</tt> exists, only root is allowed to log in; other
57 users are turned away with an error message. All users (root or
58 otherwise) are shown the contents of <tt>/etc/nologin</tt>.
61 If the file <tt>/etc/nologin</tt> does not exist, this module succeeds
64 <tag><bf>Examples/suggested usage:</bf></tag>
66 In order to make this module effective, all login methods should
67 be secured by it. It should be used as a <tt>required</tt>
68 method listed before any <tt>sufficient</tt> methods in order to
69 get standard Unix nologin semantics.
74 End of sgml insert for this module.