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+.\" Title: pam_limits
+.\" Author: [see the "AUTHORS" section]
+.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
+.\" Date: 06/21/2011
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_LIMITS" "8" "06/21/2011" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * (re)Define some macros
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" toupper - uppercase a string (locale-aware)
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+\\$*
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+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH-xref - format a cross-reference to an SH section
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+.\}
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+.el \{\
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+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+..
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+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+..
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "Name"
+pam_limits \- PAM module to limit resources
+.SH "Synopsis"
+.fam C
+.HP \w'\fBpam_limits\&.so\fR\ 'u
+\fBpam_limits\&.so\fR [conf=\fI/path/to/limits\&.conf\fR] [debug] [set_all] [utmp_early] [noaudit]
+.fam
+.SH "DESCRIPTION"
+.PP
+The pam_limits PAM module sets limits on the system resources that can be obtained in a user\-session\&. Users of
+\fIuid=0\fR
+are affected by this limits, too\&.
+.PP
+By default limits are taken from the
+\FC/etc/security/limits\&.conf\F[]
+config file\&. Then individual *\&.conf files from the
+\FC/etc/security/limits\&.d/\F[]
+directory are read\&. The files are parsed one after another in the order of "C" locale\&. The effect of the individual files is the same as if all the files were concatenated together in the order of parsing\&. If a config file is explicitly specified with a module option then the files in the above directory are not parsed\&.
+.PP
+The module must not be called by a multithreaded application\&.
+.PP
+If Linux PAM is compiled with audit support the module will report when it denies access based on limit of maximum number of concurrent login sessions\&.
+.SH "OPTIONS"
+.PP
+\fBconf=\fR\fB\fI/path/to/limits\&.conf\fR\fR
+.RS 4
+Indicate an alternative limits\&.conf style configuration file to override the default\&.
+.RE
+.PP
+\fBdebug\fR
+.RS 4
+Print debug information\&.
+.RE
+.PP
+\fBset_all\fR
+.RS 4
+Set the limits for which no value is specified in the configuration file to the one from the process with the PID 1\&.
+.RE
+.PP
+\fButmp_early\fR
+.RS 4
+Some broken applications actually allocate a utmp entry for the user before the user is admitted to the system\&. If some of the services you are configuring PAM for do this, you can selectively use this module argument to compensate for this behavior and at the same time maintain system\-wide consistency with a single limits\&.conf file\&.
+.RE
+.PP
+\fBnoaudit\fR
+.RS 4
+Do not report exceeded maximum logins count to the audit subsystem\&.
+.RE
+.SH "MODULE TYPES PROVIDED"
+.PP
+Only the
+\fBsession\fR
+module type is provided\&.
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+Cannot get current limits\&.
+.RE
+.PP
+PAM_IGNORE
+.RS 4
+No limits found for this user\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+New limits could not be set\&.
+.RE
+.PP
+PAM_SERVICE_ERR
+.RS 4
+Cannot read config file\&.
+.RE
+.PP
+PAM_SESSION_ERR
+.RS 4
+Error recovering account name\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Limits were changed\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+The user is not known to the system\&.
+.RE
+.SH "FILES"
+.PP
+\FC/etc/security/limits\&.conf\F[]
+.RS 4
+Default configuration file
+.RE
+.SH "EXAMPLES"
+.PP
+For the services you need resources limits (login for example) put a the following line in
+\FC/etc/pam\&.d/login\F[]
+as the last line for that service (usually after the pam_unix session line):
+.sp
+.if n \{\
+.RS 4
+.\}
+.fam C
+.ps -1
+.nf
+.if t \{\
+.sp -1
+.\}
+.BB lightgray adjust-for-leading-newline
+.sp -1
+
+#%PAM\-1\&.0
+#
+# Resource limits imposed on login sessions via pam_limits
+#
+session required pam_limits\&.so
+
+.EB lightgray adjust-for-leading-newline
+.if t \{\
+.sp 1
+.\}
+.fi
+.fam
+.ps +1
+.if n \{\
+.RE
+.\}
+.PP
+Replace "login" for each service you are using this module\&.
+.SH "SEE ALSO"
+.PP
+
+\fBlimits.conf\fR(5),
+\fBpam.d\fR(5),
+\fBpam\fR(8)\&.
+.SH "AUTHORS"
+.PP
+pam_limits was initially written by Cristian Gafton <gafton@redhat\&.com>