How to find IP of user machine executing a particular UNIX command? Post: 302973646

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Operating Systems Solaris How to find IP of user machine executing a particular UNIX command? Post 302973646 by rbatte1 on Thursday 19th of May 2016 04:04:17 PM

05-19-2016

Moderator

You could try a number of tweaks, such as:-

On login, set the command history file to one based on the connecting IP address
Collect all commands issued by a tty session and write them to the syslog, including the connecting IP address
Intercept the kill command with a script that logs the process id and details of the process before calling the real kill command
Some other variation?

Of course, all of these can bypassed, but they might give you a clue if someone forgets. The best method is to set up separate accounts for each user so that they cannot do this in the first place. You are exposing yourself to untold horrors from mistakes and malicious attack.

Is there a good reason for not having separate user accounts, or is it just 'easy'. Remember that security is like contraception - people may not like it but the cost of mistakes can be enormous.

I hope that the above suggestions may help,
Robin

rbatte1

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LEARN ABOUT MOJAVE

kill.d

kill.d(1m)							   USER COMMANDS							kill.d(1m)

NAME

       kill.d - snoop process signals as they occur. Uses DTrace.

SYNOPSIS

       kill.d

DESCRIPTION

       kill.d is a simple DTrace program to print details of process signals as they are sent, such as the PID source and destination, signal num-
       ber and result.

       This program can be used to determine which process is sending signals to which other process.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES

       Default output, print process signals as they are sent.
	      # kill.d

FIELDS

       FROM   source PID

       COMMAND
	      source command name

       TO     destination PID

       SIG    destination signal ("9" for a kill -9)

       RESULT result of signal (-1 is for failure)

DOCUMENTATION

       See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
       bose descriptions explaining the output.

EXIT

       kill.d will run forever until Ctrl-C is hit.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       dtrace(1M), truss(1)

version 0.90							   May 14, 2005 							kill.d(1m)

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