logind.conf(5)



LOGIND.CONF(5)                    logind.conf                   LOGIND.CONF(5)

NAME
       logind.conf, logind.conf.d - Login manager configuration files

SYNOPSIS
       /etc/systemd/logind.conf

       /etc/systemd/logind.conf.d/*.conf

       /run/systemd/logind.conf.d/*.conf

       /usr/lib/systemd/logind.conf.d/*.conf

DESCRIPTION
       These files configure various parameters of the systemd login manager,
       systemd-logind.service(8). See systemd.syntax(5) for a general
       description of the syntax.

CONFIGURATION DIRECTORIES AND PRECEDENCE
       The default configuration is defined during compilation, so a
       configuration file is only needed when it is necessary to deviate from
       those defaults. By default, the configuration file in /etc/systemd/
       contains commented out entries showing the defaults as a guide to the
       administrator. This file can be edited to create local overrides.

       When packages need to customize the configuration, they can install
       configuration snippets in /usr/lib/systemd/*.conf.d/. Files in /etc/
       are reserved for the local administrator, who may use this logic to
       override the configuration files installed by vendor packages. The main
       configuration file is read before any of the configuration directories,
       and has the lowest precedence; entries in a file in any configuration
       directory override entries in the single configuration file. Files in
       the *.conf.d/ configuration subdirectories are sorted by their filename
       in lexicographic order, regardless of which of the subdirectories they
       reside in. When multiple files specify the same option, for options
       which accept just a single value, the entry in the file with the
       lexicographically latest name takes precedence. For options which
       accept a list of values, entries are collected as they occur in files
       sorted lexicographically. It is recommended to prefix all filenames in
       those subdirectories with a two-digit number and a dash, to simplify
       the ordering of the files.

       To disable a configuration file supplied by the vendor, the recommended
       way is to place a symlink to /dev/null in the configuration directory
       in /etc/, with the same filename as the vendor configuration file.

OPTIONS
       All options are configured in the "[Login]" section:

       NAutoVTs=
           Takes a positive integer. Configures how many virtual terminals
           (VTs) to allocate by default that, when switched to and are
           previously unused, "autovt" services are automatically spawned on.
           These services are instantiated from the template unit
           autovt@.service for the respective VT TTY name, for example,
           autovt@tty4.service. By default, autovt@.service is linked to
           getty@.service. In other words, login prompts are started
           dynamically as the user switches to unused virtual terminals.
           Hence, this parameter controls how many login "gettys" are
           available on the VTs. If a VT is already used by some other
           subsystem (for example, a graphical login), this kind of activation
           will not be attempted. Note that the VT configured in ReserveVT= is
           always subject to this kind of activation, even if it is not one of
           the VTs configured with the NAutoVTs= directive. Defaults to 6.
           When set to 0, automatic spawning of "autovt" services is disabled.

       ReserveVT=
           Takes a positive integer. Identifies one virtual terminal that
           shall unconditionally be reserved for autovt@.service activation
           (see above). The VT selected with this option will be marked busy
           unconditionally, so that no other subsystem will allocate it. This
           functionality is useful to ensure that, regardless of how many VTs
           are allocated by other subsystems, one login "getty" is always
           available. Defaults to 6 (in other words, there will always be a
           "getty" available on Alt-F6.). When set to 0, VT reservation is
           disabled.

       KillUserProcesses=
           Takes a boolean argument. Configures whether the processes of a
           user should be killed when the user logs out. If true, the scope
           unit corresponding to the session and all processes inside that
           scope will be terminated. If false, the scope is "abandoned", see
           systemd.scope(5), and processes are not killed. Defaults to "no",
           but see the options KillOnlyUsers= and KillExcludeUsers= below.

           In addition to session processes, user process may run under the
           user manager unit user@.service. Depending on the linger settings,
           this may allow users to run processes independent of their login
           sessions. See the description of enable-linger in loginctl(1).

           Note that setting KillUserProcesses=yes will break tools like
           screen(1) and tmux(1), unless they are moved out of the session
           scope. See example in systemd-run(1).

       KillOnlyUsers=, KillExcludeUsers=
           These settings take space-separated lists of usernames that
           override the KillUserProcesses= setting. A user name may be added
           to KillExcludeUsers= to exclude the processes in the session scopes
           of that user from being killed even if KillUserProcesses=yes is
           set. If KillExcludeUsers= is not set, the "root" user is excluded
           by default.  KillExcludeUsers= may be set to an empty value to
           override this default. If a user is not excluded, KillOnlyUsers= is
           checked next. If this setting is specified, only the session scopes
           of those users will be killed. Otherwise, users are subject to the
           KillUserProcesses=yes setting.

       IdleAction=
           Configures the action to take when the system is idle. Takes one of
           "ignore", "poweroff", "reboot", "halt", "kexec", "suspend",
           "hibernate", "hybrid-sleep", "suspend-then-hibernate", and "lock".
           Defaults to "ignore".

           Note that this requires that user sessions correctly report the
           idle status to the system. The system will execute the action after
           all sessions report that they are idle, no idle inhibitor lock is
           active, and subsequently, the time configured with IdleActionSec=
           (see below) has expired.

       IdleActionSec=
           Configures the delay after which the action configured in
           IdleAction= (see above) is taken after the system is idle.

       InhibitDelayMaxSec=
           Specifies the maximum time a system shutdown or sleep request is
           delayed due to an inhibitor lock of type "delay" being active
           before the inhibitor is ignored and the operation executes anyway.
           Defaults to 5.

       UserStopDelaySec=
           Specifies how long to keep the user record and per-user service
           user@.service around for a user after they logged out fully. If set
           to zero, the per-user service is terminated immediately when the
           last session of the user has ended. If this option is configured to
           non-zero rapid logout/login cycles are sped up, as the user's
           service manager is not constantly restarted. If set to "infinity"
           the per-user service for a user is never terminated again after
           first login, and continues to run until system shutdown. Defaults
           to 10s.

       HandlePowerKey=, HandleSuspendKey=, HandleHibernateKey=,
       HandleLidSwitch=, HandleLidSwitchExternalPower=, HandleLidSwitchDocked=
           Controls how logind shall handle the system power and sleep keys
           and the lid switch to trigger actions such as system power-off or
           suspend. Can be one of "ignore", "poweroff", "reboot", "halt",
           "kexec", "suspend", "hibernate", "hybrid-sleep",
           "suspend-then-hibernate", and "lock". If "ignore", logind will
           never handle these keys. If "lock", all running sessions will be
           screen-locked; otherwise, the specified action will be taken in the
           respective event. Only input devices with the "power-switch" udev
           tag will be watched for key/lid switch events.  HandlePowerKey=
           defaults to "poweroff".  HandleSuspendKey= and HandleLidSwitch=
           default to "suspend".  HandleLidSwitchExternalPower= is completely
           ignored by default (for backwards compatibility) -- an explicit
           value must be set before it will be used to determine behaviour.
           HandleLidSwitchDocked= defaults to "ignore".  HandleHibernateKey=
           defaults to "hibernate". If the system is inserted in a docking
           station, or if more than one display is connected, the action
           specified by HandleLidSwitchDocked= occurs; if the system is on
           external power the action (if any) specified by
           HandleLidSwitchExternalPower= occurs; otherwise the
           HandleLidSwitch= action occurs.

           A different application may disable logind's handling of system
           power and sleep keys and the lid switch by taking a low-level
           inhibitor lock ("handle-power-key", "handle-suspend-key",
           "handle-hibernate-key", "handle-lid-switch"). This is most commonly
           used by graphical desktop environments to take over suspend and
           hibernation handling, and to use their own configuration
           mechanisms. If a low-level inhibitor lock is taken, logind will not
           take any action when that key or switch is triggered and the
           Handle*= settings are irrelevant.

       PowerKeyIgnoreInhibited=, SuspendKeyIgnoreInhibited=,
       HibernateKeyIgnoreInhibited=, LidSwitchIgnoreInhibited=
           Controls whether actions that systemd-logind takes when the power
           and sleep keys and the lid switch are triggered are subject to
           high-level inhibitor locks ("shutdown", "sleep", "idle"). Low level
           inhibitor locks ("handle-power-key", "handle-suspend-key",
           "handle-hibernate-key", "handle-lid-switch"), are always honored,
           irrespective of this setting.

           These settings take boolean arguments. If "no", the inhibitor locks
           taken by applications are respected. If "yes", "shutdown", "sleep",
           and "idle" inhibitor locks are ignored.  PowerKeyIgnoreInhibited=,
           SuspendKeyIgnoreInhibited=, and HibernateKeyIgnoreInhibited=
           default to "no".  LidSwitchIgnoreInhibited= defaults to "yes". This
           means that when systemd-logind is handling events by itself (no low
           level inhibitor locks are taken by another application), the lid
           switch does not respect suspend blockers by default, but the power
           and sleep keys do.

       HoldoffTimeoutSec=
           Specifies the timeout after system startup or system resume in
           which systemd will hold off on reacting to lid events. This is
           required for the system to properly detect any hotplugged devices
           so systemd can ignore lid events if external monitors, or docks,
           are connected. If set to 0, systemd will always react immediately,
           possibly before the kernel fully probed all hotplugged devices.
           This is safe, as long as you do not care for systemd to account for
           devices that have been plugged or unplugged while the system was
           off. Defaults to 30s.

       RuntimeDirectorySize=
           Sets the size limit on the $XDG_RUNTIME_DIR runtime directory for
           each user who logs in. Takes a size in bytes, optionally suffixed
           with the usual K, G, M, and T suffixes, to the base 1024 (IEC).
           Alternatively, a numerical percentage suffixed by "%" may be
           specified, which sets the size limit relative to the amount of
           physical RAM. Defaults to 10%. Note that this size is a safety
           limit only. As each runtime directory is a tmpfs file system, it
           will only consume as much memory as is needed.

       InhibitorsMax=
           Controls the maximum number of concurrent inhibitors to permit.
           Defaults to 8192 (8K).

       SessionsMax=
           Controls the maximum number of concurrent user sessions to manage.
           Defaults to 8192 (8K). Depending on how the pam_systemd.so module
           is included in the PAM stack configuration, further login sessions
           will either be refused, or permitted but not tracked by
           systemd-logind.

       RemoveIPC=
           Controls whether System V and POSIX IPC objects belonging to the
           user shall be removed when the user fully logs out. Takes a boolean
           argument. If enabled, the user may not consume IPC resources after
           the last of the user's sessions terminated. This covers System V
           semaphores, shared memory and message queues, as well as POSIX
           shared memory and message queues. Note that IPC objects of the root
           user and other system users are excluded from the effect of this
           setting. Defaults to "yes".

SEE ALSO
       systemd(1), systemd-logind.service(8), loginctl(1), systemd-
       system.conf(5)

systemd 240                                                     LOGIND.CONF(5)

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