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哪个脚本实际上可以自动暂停机器？

tag-icon • tag-icon ssh suspend idle
哪个脚本实际上可以自动暂停机器？

系统不活动时会激活哪个特定脚本？脚本如何知道系统在配置的时间内处于不活动状态？

我需要该脚本，以便我可以检查是否有人通过 SSH 登录，并防止脚本实际挂起机器。

答案1

自动暂停现在由systemd-服务，尤其是其登录经理。

从其手册页中：

DESCRIPTION
   systemd-logind is a system service that manages user logins. It is
   responsible for:

   ·   Keeping track of users and sessions, their processes and their idle
       state

   ·   Creating control groups for user processes

   ·   Providing PolicyKit-based access for users to operations such as
       system shutdown or sleep

   ·   Implementing a shutdown/sleep inhibition logic for applications

   ·   Handling of power/sleep hardware keys

   ·   Multi-seat management

   ·   Session switch management

   ·   Device access management for users

   ·   Automatic spawning of text logins (gettys) on virtual console
       activation and user runtime directory management

要检查会话是否阻止系统挂起，你可以使用loginctl命令：

  1. 列出活动会话：

    $ loginctl list-sessions
   SESSION        UID USER             SEAT            
        c1        112 lightdm          seat0           
         2       1000 u                                
        c2       1000 u                seat0

  2. 识别远程会话：

    $ loginctl session-status 2
       Since: lun. 2014-09-08 10:21:22 CEST; 2h 32min ago
      Leader: 2283 (sshd)
      Remote: sylvain-thinkpad-t430s.home
     Service: sshd; type tty; class user
       State: active
        Unit: session-2.scope

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