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Old 01-20-2004, 10:42 PM   #1
Registered: May 2003
Distribution: Debian GNU/Linux 3.0 Sid, OpenBSD 3.5
Posts: 190

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Watching SSH pts/# connections live...

How would I go about watching /dev/pts/x and still let his commands go through? If I cat it then he doesn't recieve any stdout. This has been bothering me for quite some time, and your help is appreciated. Thanks.
Old 01-22-2004, 08:45 AM   #2
Registered: Oct 2002
Location: Curitiba - Brazil
Distribution: Conectiva
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For the tty's you could use the /dev/vcs[0-63], but for the same efect to pts, I don't know...

Maybe could be used an scriptusing ps ...
Old 01-22-2004, 12:34 PM   #3
Registered: May 2003
Distribution: Debian GNU/Linux 3.0 Sid, OpenBSD 3.5
Posts: 190

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I think I've solved the problem. The command 'cat /dev/pts/0 | tee -a pts0log' will work, to log it to a file. Tee takes input and writes to a find and prints to stdout. Well, I guess I'll test it.
Old 01-22-2004, 02:49 PM   #4
Registered: Sep 2003
Distribution: Mandrake 10.0
Posts: 200

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If you want to watch a specific connection live, use screen. It allows you to watch a user in real time. man screen, and google screen user's guide. (It has a chapter on multiple users.)

Otherwise I'm not aware of any way to 'watch', in real time, a random login.
Old 01-22-2004, 07:42 PM   #5
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Registered: Jan 2004
Distribution: Slackware bay-bee
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try ttysnoop

that lets you watch and control a users session.

there are other ways that log users commands via inserting a module into the kernel but that gets a bit complicated unless you know what your doing.

there's also a key logger program on freshmeat. It doesnt pick up all the characters but it works sufficiently


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