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Old 11-09-2010, 09:24 AM   #1
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Registered: Jan 2008
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Remote Login to Restart CUPS


First of all, this is my first post so I apologize if I have mis-categorized it.

I am creating a process where a non-technical user can log into Putty and a login script will automatically restart CUPS, display a message with enough time for them to read it and then log them out.

1. An icon for Putty will be placed on a Windows desktop.
2. Login credentials will be saved in putty.
3. When they log in, the login script will execute with no interaction from the user.
4. Script closes.
5. OS = Red Hat ES5
6. Linux user = ptradmin

I can perform steps 1 and 2 with no problem. I even know how to restart CUPS as root. The problem is when I log in as ptradmin and restart CUPS, I get a "rm: cannot remove /'/var/run/cups': Permission denied"

So it's obvious that the ptradmin user does not have permission to restart CUPS.

It appears I need to allow the ptradmin user the right to restart CUPS. Once that is done, a login script will need to be developed.

My knowledge of Linux is limited so please dumb down the concepts.

If you need any additional info, let me know.

Old 11-09-2010, 10:24 AM   #2
Registered: May 2001
Location: India, Kerala, Thrissur
Distribution: FC 7-10
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1. Write a script for what you want to do
2. Make is accessible by the prtadmin user (read and execute, but no write)
3. Setup sudo for prtadmin user for executing that script without any password
4. From his .bashrc or something call this script using sudo. Make use of trap to avoid signals OR
5. Write a C program to call the script and put that as his/her shell. Make sure that your C program is secure enough


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