How to Delete a Login User

[billmckinstry]

Hi Forum,
We sometimes have users logged in twice or even three times when "who" is used.

How can I delete / Remove the duplicate user logins without the need to restart the server?? (ClarkConnect 4.1 - RHE4)

I currently use Init 6 to solve the problem but believe there should be a better way.

Happy Australia Day

[vsemaska]

This seems to work assuming the users are logging in with ssh.

In this example the user to delete is using login device pts/3

# who -u
root     pts/1        Jan 21 09:36  old        16583 (www.xxx.yyy.zzz)
root     pts/2        Jan 25 17:41   .          1221 (www.xxx.yyy.zzz)
root     pts/3        Jan 25 17:55   .          1467 (www.xxx.yyy.zzz)
# ps -ef | grep 1467
root      1467  1465  0 17:55 pts/3    00:00:00 -bash
root      1506  1221  0 17:55 pts/2    00:00:00 grep 1467
# kill 1465

The who -u option lists the pid of the login shell (1467)
You need to find the parent pid or ppid of the login shell (1465)
Kill that process (1465)

[billmckinstry]

Thanks for info. The logins are "smb". Will this change the method to clear a user login???

[vsemaska]

Never worked with smb so I don't know. You'd have to try it.