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bsl1@localhost bsl1]$ su -
Password:
[root@localhost root]# su bsl1
[bsl1@localhost root]$ exit
exit
[root@localhost root]# exit
exit
[bsl1@localhost bsl1]$
[bsl1@localhost bsl1]$ su
Password:
[root@localhost bsl1]# su bsl1
[bsl1@localhost bsl1]$ users
bsl1 bsl1
[bsl1@localhost bsl1]$
Notice, when I try to 'get back' after the first 'su bsl1' up there, I'm still in the root directory as bsl1.
regards...
Edit: well, I could be partially wrong also. Even if I type 'users' with the one and only initial gnome-terminal occurence, without any su or su -, it still says 'bsl1 bsl1'.
my bad! Yes, as you said, there are no new users when you su to root and then su to user. But when you do that, the root acount is still there. If you check with:
ps a
you will see, that there are 3 processes running shell, but it should be only one, since it should return you where you started from. And I have noticed a similar discussion, where unSpawn said, that this must be taken as a serious security risk.
So ... yes, there are no more users, but to exit from root account you MUST use exit and not just su to normal user.
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