PAM_LIMITS(8) Linux-PAM Manual PAM_LIMITS(8)NAMEpam_limits - PAM module to limit resources
SYNOPSIS
pam_limits.so [change_uid] [conf=/path/to/limits.conf] [debug]
[utmp_early] [noaudit]
DESCRIPTION
The pam_limits PAM module sets limits on the system resources that can
be obtained in a user-session. Users of uid=0 are affected by this
limits, too.
By default limits are taken from the /etc/security/limits.conf config
file. Then individual files from the /etc/security/limits.d/ 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 explicitely specified with a module option then the files in
the above directory are not parsed.
The module must not be called by a multithreaded application.
OPTIONS
change_uid
Change real uid to the user for who the limits are set up. Use
this option if you have problems like login not forking a shell
for user who has no processes. Be warned that something else may
break when you do this.
conf=/path/to/limits.conf
Indicate an alternative limits.conf style configuration file to
override the default.
debug Print debug information.
utmp_early
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.
noaudit
Do not report exceeded maximum logins count to the audit
subsystem.
MODULE SERVICES PROVIDED
Only the session service is supported.
RETURN VALUES
PAM_ABORT
Cannot get current limits.
PAM_IGNORE
No limits found for this user.
PAM_PERM_DENIED
New limits could not be set.
PAM_SERVICE_ERR
Cannot read config file.
PAM_SESSEION_ERR
Error recovering account name.
PAM_SUCCESS
Limits were changed.
PAM_USER_UNKNOWN
The user is not known to the system.
FILES
/etc/security/limits.conf
Default configuration file
EXAMPLES
For the services you need resources limits (login for example) put a
the following line in /etc/pam.d/login as the last line for that
service (usually after the pam_unix session line):
#%PAM-1.0
#
# Resource limits imposed on login sessions via pam_limits
#
session required pam_limits.so
Replace "login" for each service you are using this module.
SEE ALSOlimits.conf(5), pam.d(8), pam(8).
AUTHORSpam_limits was initially written by Cristian Gafton <gafton@redhat.com>
Linux-PAM Manual 11/18/2008 PAM_LIMITS(8)