关闭SSH 连接用户

第一步：查明登陆端口和登陆人
[root@localhost liulangyu]# who
liulangyu :0           2015-07-22 03:03 (:0)
root     pts/0        2015-07-23 00:27 (192.168.176.1)
liulangyu pts/1        2015-07-23 00:29 (:0)
root     pts/2        2015-07-23 01:44 (192.168.176.1)
第二步：通知登陆用户将要关闭他
[root@localhost liulangyu]# echo "I will close your connection" >  /dev/pts/2
第三步：关闭用户连接
[root@localhost liulangyu]# fuser -k /dev/pts/2
第四步：验证是否已经关闭
[root@localhost liulangyu]# who
liulangyu :0           2015-07-22 03:03 (:0)
root     pts/0        2015-07-23 00:27 (192.168.176.1)
liulangyu pts/1        2015-07-23 00:29 (:0)