1. View online users
[root@dbserver01 ~]# w16:45:04 up 16 days, 8:48, 1 user, load average: 0.08, 0.07, 0.05USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAToracle pts/0 192.168.1.116 15:18 0.00s 1:16 0.03s sshd: oracle [priv]
2, view user login history:
[root@dbserver01 ~ ]# last
oracle pts/0 192.168.1.116 Mon Jul 1 15:18 still logged inoracle pts/0 192.168.1.116 Tue Jun 25 17:39 - 18:04 (00:25)oracle pts/0 192.168.1.116 Tue Jun 25 17:13 - 17:14 (00:00) oracle pts/1 192.168.1.116 Tue Jun 25 15:05 - 15:07 (00:01)oracle pts/0 192.168.1.116 Tue Jun 25 11:20 - 15:12 (03:51)
3, kick out the user:
#pkill -KILL -t pts/0 ##pts/0 is seen by the w command User terminal number
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