(未知)用户总是登录我的centos linux机器

我正在使用who命令登录用户进入我的系统我发现的是非常令人惊讶的用户名为unknown

命令结果：

myuser    pts/1        Aug  6 20:27 (localhost)
 (unknown) :0          Aug  5 16:25 (:0) 
 myuser    pts/0        Aug  6 00:48 (localhost.localdomain)

但是,当我尝试运行w时,结果会有所不同：

20:46:53 up 1 day,23:11,3 users,load average: 1.00,1.01,1.05
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
myuser    pts/1    localhost        20:27    5.00s  0.20s  0.03s w
myuser    pts/0    localhost.locald 00:48   19:57m  0.08s  1.71s python2 -m guake.main

我无法在我的机器上找到任何名为unknown的用户.在尝试sudo su unknown /“(unknown)”

我试过运行最后它显示未知用户仍然登录

myuser    pts/1        localhost        Thu Aug  6 20:27   still logged in
myuser    pts/2        :pts/1:S.0       Thu Aug  6 20:15 - 20:16  (00:00)
myuser    pts/1        localhost        Thu Aug  6 20:03 - 20:18  (00:15)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:49 - 19:49  (00:00)
myuser    pts/1        localhost        Thu Aug  6 19:47 - 19:49  (00:02)
myuser    pts/1        localhost        Thu Aug  6 19:37 - 19:46  (00:09)
myuser    pts/1        localhost        Thu Aug  6 19:33 - 19:37  (00:03)
myuser    pts/1        :9               Thu Aug  6 19:32 - 19:33  (00:00)
myuser    pts/1        localhost        Thu Aug  6 19:26 - 19:32  (00:05)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:22 - 19:22  (00:00)
myuser    pts/1        localhost        Thu Aug  6 19:22 - 19:22  (00:00)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:15 - 19:16  (00:00)
myuser    pts/1        localhost        Thu Aug  6 19:15 - 19:16  (00:00)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:13 - 19:13  (00:00)
myuser    pts/1        localhost        Thu Aug  6 19:13 - 19:13  (00:00)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:12 - 19:13  (00:00)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:11 - 19:11  (00:00)
myuser    pts/2        :pts/1:S.0       Thu Aug  6 19:10 - 19:10  (00:00)
myuser    pts/1        localhost        Thu Aug  6 18:37 - 19:13  (00:35)
myuser    pts/1        localhost        Thu Aug  6 18:17 - 18:21  (00:03)
myuser    pts/1        localhost        Thu Aug  6 18:09 - 18:13  (00:03)
myuser    pts/0        localhost.locald Thu Aug  6 00:48   still logged in
myuser    pts/0        localhost.locald Thu Aug  6 00:34 - 00:48  (00:14)
myuser    pts/1        :9               Wed Aug  5 23:01 - 23:01  (00:00)
myuser    pts/0        localhost.locald Wed Aug  5 22:00 - 00:34  (02:34)
myuser    pts/0        localhost        Wed Aug  5 21:06 - 21:06  (00:00)
myuser    pts/0        localhost        Wed Aug  5 20:57 - 20:59  (00:01)
myuser    pts/0        localhost        Wed Aug  5 20:56 - 20:56  (00:00)
myuser    pts/0        localhost        Wed Aug  5 20:56 - 20:56  (00:00)
myuser    pts/0        :9               Wed Aug  5 20:55 - 20:56  (00:00)
myuser    pts/4        localhost        Wed Aug  5 20:14 - 20:55  (00:40)
myuser    pts/4        localhost        Wed Aug  5 20:11 - 20:12  (00:00)
myuser    pts/5        localhost        Wed Aug  5 19:52 - 19:56  (00:04)
myuser    pts/4        localhost        Wed Aug  5 19:29 - 19:31  (00:02)
myuser    pts/2        localhost        Wed Aug  5 18:42 - 19:32  (00:49)
myuser    pts/2        localhost        Wed Aug  5 18:42 - 18:42  (00:00)
myuser    pts/3        :9               Wed Aug  5 18:38 - 18:42  (00:04)
myuser    pts/3        localhost        Wed Aug  5 16:28 - 16:28  (00:00)
myuser    pts/2        :9               Wed Aug  5 16:26 - 16:28  (00:02)
(unknown :0           :0               Wed Aug  5 16:25   still logged in

知道怎么样？

这里是link到页面.

也许您没有使用Fedora,但我建议尝试禁用X并检查您是否仍有(未知)用户登录.

希望这可以帮助.

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