strtol.3, strtoul.3: SEE ALSO: add strtoimax(3), strtoumax(3)

[thirdparty/man-pages.git] / man5 / securetty.5

diff --git a/man5/securetty.5 b/man5/securetty.5
index 87619ac0c9022f7e5f1a56ae78f2bfad330c903e..148f70a12edcfba349b1da2390f4b17a3dc5e4c9 100644 (file)
--- a/man5/securetty.5
+++ b/man5/securetty.5
@@ -1,7 +1,7 @@
 .\" Copyright (c) 1993 Michael Haardt (michael@moria.de),
 .\"     Fri Apr  2 11:32:09 MET DST 1993
 .\"
-.\" %%%LICENSE_START(GPLv2+_doc_full)
+.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
 .\" This is free documentation; you can redistribute it and/or
 .\" modify it under the terms of the GNU General Public License as
 .\" published by the Free Software Foundation; either version 2 of
@@ -23,23 +23,32 @@
 .\" %%%LICENSE_END
 .\"
 .\" Modified Sun Jul 25 11:06:27 1993 by Rik Faith (faith@cs.unc.edu)
-.TH SECURETTY 5 1992-12-29 "Linux" "Linux Programmer's Manual"
+.TH SECURETTY 5 2015-03-29 "Linux" "Linux Programmer's Manual"
 .SH NAME
 securetty \- file which lists terminals from which root can log in
 .SH DESCRIPTION
 The file
 .I /etc/securetty
-is used by (some versions of)
-.BR login (1).
-The file contains the device names of terminal lines
+contains the names of terminals
 (one per line, without leading
 .IR /dev/ )
+which are considered secure for the transmission of certain authentication
+tokens.
+.PP
+It is used by (some versions of)
+.BR login (1)
+to restrict the terminals
 on which root is allowed to login.
 See
 .BR login.defs (5)
 if you use the shadow suite.
+.PP
+On PAM enabled systems, it is used for the same purpose by
+.BR pam_securetty (8)
+to restrict the terminals on which empty passwords are accepted.
 .SH FILES
 .I /etc/securetty
 .SH SEE ALSO
 .BR login (1),
-.BR login.defs (5)
+.BR login.defs (5),
+.BR pam_securetty (8)