pam_limits(8)

1PAM_LIMITS(8)                  Linux-PAM Manual                  PAM_LIMITS(8)
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NAME

6       pam_limits - PAM module to limit resources
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SYNOPSIS

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

13       The pam_limits PAM module sets limits on the system resources that can
14       be obtained in a user-session. Users of uid=0 are affected by this
15       limits, too.
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17       By default limits are taken from the /etc/security/limits.conf config
18       file.
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OPTIONS

21       change_uid
22          Change real uid to the user for who the limits are set up. Use this
23          option if you have problems like login not forking a shell for user
24          who has no processes. Be warned that something else may break when
25          you do this.
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27       conf=/path/to/limits.conf
28          Indicate an alternative limits.conf style configuration file to
29          override the default.
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31       debug
32          Print debug information.
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34       utmp_early
35          Some broken applications actually allocate a utmp entry for the user
36          before the user is admitted to the system. If some of the services
37          you are configuring PAM for do this, you can selectively use this
38          module argument to compensate for this behavior and at the same time
39          maintain system-wide consistency with a single limits.conf file.
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MODULE SERVICES PROVIDED

42       Only the session service is supported.
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RETURN VALUES

45       PAM_ABORT
46          Cannot get current limits.
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48       PAM_IGNORE
49          No limits found for this user.
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51       PAM_PERM_DENIED
52          New limits could not be set.
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54       PAM_SERVICE_ERR
55          Cannot read config file.
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57       PAM_SESSEION_ERR
58          Error recovering account name.
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60       PAM_SUCCESS
61          Limits were changed.
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63       PAM_USER_UNKNOWN
64          The user is not known to the system.
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FILES

67       /etc/security/limits.conf
68          Default configuration file
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EXAMPLES

71       For the services you need resources limits (login for example) put a
72       the following line in /etc/pam.d/login as the last line for that
73       service (usually after the pam_unix session line):
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75          #%PAM-1.0
76          #
77          # Resource limits imposed on login sessions via pam_limits
78          #
79          session  required  pam_limits.so
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82       Replace "login" for each service you are using this module.
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AUTHORS

88       pam_limits was initially written by Cristian Gafton <gafton@redhat.com>
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92Linux-PAM Manual                  06/17/2006                     PAM_LIMITS(8)