Deny users access to $

[needcoffee]

Most users are set to launch an application at login and disconnect when they exit the app for 3 months now. Recently users sporadically have exited to the $ prompt instead of disconnecting. The following lines are in .profile for each user:

. /usr/dec/START.CMD # Start App
exit # Disconnect after App exit

What could be the cause of the exit command being bypassed other than user keystrokes? Is there a way to block user keystrokes from exiting the script? Would using logout instead of exit make a difference? A response to any of these three would be greatly appreciated.


Thanks in advance

needcoffee

 

[vivek1712]

Why r u using "exit" in .profile.

Write "logout" in the end of /usr/dec/START.CMD .

Also do one thing insert the undermentioned lines , this will also logout user when he/she will press "^C". Just change the variable name i,e "ANS" with ur's. To write "^C" use "Control v and then without releasing Control press c".

if [ $ANS = '^C' ]
then
logout
fi

Best Regards,
vivek

 

[anshudad]

Check the /etc/profile . There the trap statement in the begining and the end of the file. The trap statement is there so that other users can not press Ctrl C to just go to the prompt to get root access. You can use the trap statement in your .profile so that the user can not exit out of the program.

 

[dsn1]

There are 2 good ways to stop them getting to the shell prompt.

Either change the call to
exec /usr/dec/START.CMD

or better still, if possible

modify the /etc/password and change the shell from /usr/bin/ksh to /usr/dec/START.CMD

Both will ensure that they cannot exit to a shell prompt from START.CMD since there will be no shell process to exit to.

Dave

 

[needcoffee]

Great suggestions. Thanks for the input!

needcoffee