On Tue, 21 Aug 2001, Eugene Grosbein wrote:
> Hi!
>
> 1. login as root
> 2. type 'login -f username' when username is valid name of user that is
> not logged now
> 3. type 'logout'
> 4. Now you are root but command 'w' does not say so (security?)
> 5. type 'logout'
> 6. Now command 'w' says user 'username' is still logged but it has no
> processes.
Since the root user can just delete the utmp file, there is not too much
to be done about this. Some UNIX systems have gone to a utmp API and an
utmp server to maintain the logged in user state better.
Tom
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