Re: unix question: unknown user logged in? hacked?

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El Viernes, 20 de Abril de 2007 23:50, Mike Wright escribió:
> >>>>There is a mystery user on a remote system
> >>>
> >>>What lastlog says?
> >
> >.............. exists on pty/1
> >
> > What about using lsof?
> > lsof /dev/pts/*
> Aha!  There is no /dev/pts/1 but some piece of that connection still
> exists in memory somewhere.

It would probably die after timeout, even if you didn't kill it.

> Solution: make another remote connection.  This recreates /dev/pts/1.
> Now, follow that with a normal "exit" and it correctly tears down the
> connection and the mystery user disappears.

Cool, you got it :-)
> Muchas gracias, Miguel.

Actually my name is Manuel, Miguel is another very common spanish name, so  
don't worry, it's a well-known mistake :-)

Kind regards
Manuel Arostegui Ramirez.

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