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   pam_limits    ( 8 )

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Имя (Name)

pam_limits - PAM module to limit resources

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Синопсис (Synopsis)

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

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Описание (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 *.conf 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 explicitly 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.

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.

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Параметры (Options)

conf=/path/to/limits.conf
           Indicate an alternative limits.conf style configuration file
           to override the default.

       debug
           Print debug information.

       set_all
           Set the limits for which no value is specified in the
           configuration file to the one from the process with the PID
           1.

       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.

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Предоставляемые типы модулей (Module types provided)

Only the session module type is provided.

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Возвращаемое значение (Return value)

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_SESSION_ERR Error recovering account name.

PAM_SUCCESS Limits were changed.

PAM_USER_UNKNOWN The user is not known to the system.

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Файлы (Files)

/etc/security/limits.conf Default configuration file

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Примеры (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.

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Смотри также (See also)

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

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