HOWTO: Find Out Who Else is Logged on to my Machine?
While malware, spyware, and virii aren’t generally problems for GNU/Linux users, there’s always some residual paranoia when moving over from Windows. Until you become comfortable enough with your system, it’s natural to want to know if someone has ssh’d or telnetted in to your system.
The quickest way to tell who’s on your system at any moment is to open a terminal window, become root, and type:
who
This will give you a quick and dirty view of who’s logged on right now. There are many command line options for the who command - use man who to check them out.
Hopefully, you’ll only see you!
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3 opinions for HOWTO: Find Out Who Else is Logged on to my Machine?
New Linux User » HOWTO: See Who Else Has Been On Your Machine.
Mar 30, 2006 at 5:56 am
[…] We’ve covered off how to see what other users are on your machine right now by using the who command, but how can you see who has been on your machine, but now gone? […]
debbie dee
Apr 21, 2006 at 4:20 am
I have a PC with xp. I use a login screen to sign in. there are no guest sign in’s as this is my private home office computer. My cable internet comes into my office & through a router (for my laptop) then directly into my computer. (there is only one computer with cable access & my lap top is not used much)
Problem: sometimes at my log in screen, I get a message that states “someone else is logged on to this computer”. Does this mean they are accessing my internet or actually my computer data? How can I tell who. what, where & why?
Jon
Apr 24, 2006 at 4:45 am
Hi Debbie,
Sorry, this is a Linux blog. I don’t know much about Windows :)
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