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linux是一个多用户操作系统，用户可以在不同的地方链接上LINUX服务器，多用户登陆有其便利性，也存在一系列的安全隐患，这里告诉大家如何踢掉多余的登陆用户。
在系统中我们可以用w或者who来查看当前在线的用户。例如：
[root@33f ~]# who
root pts/0 2021-11-20 14:41 (125.25.33.162)
root pts/2 2021-11-20 14:30 (103.169.97.201)或者
[root@33f ~]# w
14:42:06 up 32 min, 2 users, load average: 0.00, 0.10, 0.24
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root pts/0 125.25.33.162 14:41 6.00s 0.02s 0.01s w
root pts/2 103.169.97.201 14:30 11:34 0.02s 0.02s -bash
看看那个是自己登录额pts
[root@33f ~]# who am i
root pts/0 2021-11-20 14:41 (125.25.33.162)
可以看到自己是pts/0，接下来使用pkill踢掉用户2
[root@33f ~]# pkill -kill -t pts/2
接着用w或者who再次查看
[root@33f ~]# w
14:42:06 up 32 min, 2 users, load average: 0.00, 0.10, 0.24
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root pts/0 125.25.33.162 14:41 6.00s 0.02s 0.01s w
已经成功t掉了。
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本文最后更新于2021年11月20日 ，已超过905天没有更新，若内容或图片失效，请留言反馈。
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