End other ssh login users in CentOS

End other ssh login users in CentOS

It is also necessary to limit the number of SSH connections and manually disconnect idle connections. Here, the process of manually picking other users in Linux is written.

1. view online users of the system

[root@whh ~]# w14:30:26 up 38 days, 21:22,  3 users,  load average: 0.00, 0.01, 0.05USER    TTY      FROM              LOGIN@  IDLE  JCPU  PCPU WHATroot    pts/0    162.16.16.155    14:30    0.00s  0.07s  0.05s wroot    pts/1    162.16.16.155    14:30  12.00s  0.01s  0.01s -bashroot    tty1    :0              05Dec13 38days  2:16  2:16  /usr/bin/Xorg :0 -nr -verbose -audit 4 -auth /var/run/gdm/auth-for-gdm-LrK8wg/database -noliste

2. Check which terminal belongs to you at this time (I have opened two connections)

[root@whh ~]# who am iroot    pts/0        2017-11-13 14:30 (162.16.16.155)

3. pkill a terminal that is not applicable to you

[Root @ whh ~] # Pkill-kill-t pts/1

4. view the current terminal information

[root@linuxidc ~]# w 14:31:04 up 38 days, 21:23,  2 users,  load average: 0.00, 0.01, 0.05USER    TTY      FROM              LOGIN@  IDLE  JCPU  PCPU WHATroot    pts/0    162.16.16.155    14:30    0.00s  0.04s  0.01s wroot    tty1    :0              05Dec13 38days  2:16  2:16  /usr/bin/Xorg :0 -nr -verbose -audit 4 -auth /var/run/gdm/auth-for-gdm-LrK8wg/database -noliste[root@linuxidc ~]#

Note:

If the task is still not killed, we recommend that you add-9 to force the task to be killed.

[root@whh ~]# pkill -9 -t pts/1