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shell question

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Ice-9:
When I type "uptime" in a shell I get

7:57am  up 7 min,  3 users,  load average: 0.00, 0.10, 0.07

Where do the 3 users come from?
I read somewhere that it meant that "3 users were telnetted to the server" .......
Does that mean that someone is conected with my pc?

choasforages:
you are probably in x, every X-term or E-term or rxvt is counted as a user, type in
who

that should tell you more

Ice-9:
Ok, did that and a few other things.
yc@linux:~> who
yc       :0       Jun 25 07:50 (console)
yc       pts/0    Jun 25 07:51
yc       pts/1    Jun 25 07:57
yc@linux:~> whoami
yc
yc@linux:~> w
  8:10am  up 20 min,  3 users,  load average: 0.00, 0.00, 0.01
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU  WHAT
yc       :0       console           7:50am   ?     0.00s   ?     -
yc       pts/0    -                 7:51am 19:17   0.00s   ?     -
yc       pts/1    -                 7:57am  0.00s  0.05s  0.01s  w
yc@linux:~> finger
Login      Name                  Tty      Idle  Login Time   Where
yc         Yves Cluckers         :0        93d     Tue 07:50 console
yc         Yves Cluckers         pts/0      19     Tue 07:51
yc         Yves Cluckers        *pts/1       -     Tue 07:57

I just didn't know if it weren't possible that someone telnetted into my machine using my login.
Would that even be possible?
I guess it would generate a user conflict, wouldn't it?

choasforages:
nope, with out modifications, you can logon to as many times as you want

cyrax:
i would recommend you disable telnet if you are actually using that... as the passwords are transferred as plain text whereas ssh is encrypted.

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