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Edit File: systemd-logind.service
# SPDX-License-Identifier: LGPL-2.1-or-later # # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. [Unit] Description=User Login Management Documentation=man:sd-login(3) Documentation=man:systemd-logind.service(8) Documentation=man:logind.conf(5) Documentation=man:org.freedesktop.login1(5) Wants=user.slice modprobe@drm.service After=nss-user-lookup.target user.slice modprobe@drm.service # Ask for the dbus socket. Wants=dbus.socket After=dbus.socket [Service] BusName=org.freedesktop.login1 CapabilityBoundingSet=CAP_SYS_ADMIN CAP_MAC_ADMIN CAP_AUDIT_CONTROL CAP_CHOWN CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_FOWNER CAP_SYS_TTY_CONFIG CAP_LINUX_IMMUTABLE DeviceAllow=block-* r DeviceAllow=char-/dev/console rw DeviceAllow=char-drm rw DeviceAllow=char-input rw DeviceAllow=char-tty rw DeviceAllow=char-vcs rw ExecStart=/usr/lib/systemd/systemd-logind FileDescriptorStoreMax=512 IPAddressDeny=any LockPersonality=yes MemoryDenyWriteExecute=yes NoNewPrivileges=yes PrivateTmp=yes # We don't use ProtectProc= since we need to look for usernames and tty for wall messages ProtectClock=yes ProtectControlGroups=yes ProtectHome=yes ProtectHostname=yes ProtectKernelLogs=yes ProtectKernelModules=yes ProtectSystem=strict ReadWritePaths=/etc /run Restart=always RestartSec=0 RestrictAddressFamilies=AF_UNIX AF_NETLINK RestrictNamespaces=yes RestrictRealtime=yes RestrictSUIDSGID=yes RuntimeDirectory=systemd/sessions systemd/seats systemd/users systemd/inhibit systemd/shutdown RuntimeDirectoryPreserve=yes StateDirectory=systemd/linger SystemCallArchitectures=native SystemCallErrorNumber=EPERM SystemCallFilter=@system-service Type=notify-reload WatchdogSec=3min # Increase the default a bit in order to allow many simultaneous logins since # we keep one fd open per session. LimitNOFILE=524288