今天早上，我收到了来自主机的通知，称他们无法 ping 服务器，我检查了日志，并在以下情况发生前 5 分钟：
Jun 13 10:34:50 server-name kernel: usb 1-5: new low-speed USB device number 2 using xhci_hcd
Jun 13 10:34:50 server-name kernel: input: Logitech USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/0003:046D:C31C.0001/input/input0
Jun 13 10:34:50 server-name kernel: hid-generic 0003:046D:C31C.0001: input: USB HID v1.10 Keyboard [Logitech USB Keyboard] on usb-0000:00:14.0-5/input0
Jun 13 10:34:50 server-name kernel: input: Logitech USB Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.1/0003:046D:C31C.0002/input/input1
Jun 13 10:34:50 server-name kernel: input: Logitech USB Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.1/0003:046D:C31C.0002/input/input2
Jun 13 10:34:50 server-name kernel: hid-generic 0003:046D:C31C.0002: input: USB HID v1.10 Device [Logitech USB Keyboard] on usb-0000:00:14.0-5/input1
Jun 13 10:34:50 server-name init: tty (/dev/tty1) main process (1884) killed by TERM signal
Jun 13 10:34:50 server-name init: tty (/dev/tty2) main process (1886) killed by TERM signal
Jun 13 10:34:50 server-name init: tty (/dev/tty3) main process (1891) killed by TERM signal
Jun 13 10:34:50 server-name init: tty (/dev/tty4) main process (1893) killed by TERM signal
Jun 13 10:34:50 server-name init: tty (/dev/tty5) main process (1895) killed by TERM signal
Jun 13 10:34:50 server-name init: tty (/dev/tty6) main process (1897) killed by TERM signal
这是否意味着数据中心的某人插入了键盘并且发生了这种情况，或者是否已被泄露？服务器一个小时后没有响应，也无法重新启动