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Manual Reference Pages  - PAM_LIMITS (8)

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pam_limits - PAM module to limit resources

CONTENTS

pam_limits.so [change_uid] [conf=/path/to/limits.conf] [debug] [utmp_early]

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.

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.

Only the session service is supported.

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.

/etc/security/limits.conf
	Default configuration file

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.

limits.conf(5), pam.d(8), pam(8).

pam_limits was initially written by Cristian Gafton <gafton@redhat.com>

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