Diffstat (limited to 'modules/pam_securetty/pam_securetty.8')
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+.\" Copyright (C) 2003 International Business Machines Corp.
+.\" This file is distributed according to the GNU General Public License.
+.\" See the file COPYING in the top level source directory for details.
+.de Sh \" Subsection
+.if t .Sp
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+.de Ip \" List item
+.ie \\n(.$>=3 .ne \\$3
+.el .ne 3
+.IP "\\$1" \\$2
+.TH "PAM_SECURETTY" 8 "2003-02-21" "Linux 2.4" "System Administrator's Manual"
+pam_securetty \- Limits root to logging in on devices listed in /etc/securetty
+\fBpam_securetty\fR is a PAM module that allows root logins only if the
+user is logging in on a "secure" tty, as defined by the listing in
+\fBpam_securetty\fR also checks to make sure that \fI/etc/securetty\fR
+is a plain file and not world writable.
+This module has no effect on non-root users.
+\fBpam_securetty\fR has no options.
+.SH "RETURN CODES"
+\fBpam_securetty\fR has the following return codes:
+The user is allowed to continue authentication.
+Either the user is not root, or the root user is trying to log in on
+an acceptable device.
+Authentication is rejected.
+Either root is attempting to log in via an unacceptable device,
+or the \fI/etc/securetty\fR file is world writable or not a normal file.
+An application error occurred. \fBpam_securetty\fR was not able to get
+information it required from the application that called it.
+An error occurred while the module was determining the user's name or tty,
+or the module could not open \fI/etc/securetty\fR.
+The module could not find the user name in the
+\fI/etc/passwd\fR file to verify whether the user had a UID of 0.
+Therefore, the results of running this module are ignored.
+\fBpam_securetty\fR was written by Elliot Lee.
+.SH "SEE ALSO"
+\fBpam.conf\fR(8), \fBpam.d\fR(8), \fBpam\fR(8), \fBsecuretty\fR(8).