COM port access permission of non-root users

COM port access permission of non-root users

Post by Fung Wai Keu » Thu, 28 Jan 1999 04:00:00



Hi,

        I would like to ask how to release the access permission of COM port
for non-root users.  I've tried to change the access permission of /dev/ttyS0
to crw-rw-rw- and my non-root user can access the COM port.  However, I have to
re-set the access permission of /dev/ttyS0 to crw-rw-rw- for non-root access as
the access permission of /dev/ttyS0 is seemed to change back to crw-------
EVERYDAY automatically and mysteriously.  Is it possible to set the access
permission permanently?

Thanks in advance.

--

Regards,
Wai Keung, Fung

Department of Mechanical and Automation Engineering,
The Chinese University of Hong Kong,
Shatin, N.T.,
Hong Kong.

Tel: (852)26098470      Fax: (852)26036002

 
 
 

1. run a non-root user's program from a non-root user

Hi Folks,

Here is the problem.

I have user A and user B (non-root users)

I need for user A to initiate a job as user B. How can this be done?

As you know, I can do this as root. I can start a process from root as
another user in the system (cron jobs come to my mind!) Is there a way
to do this for non-root users? I believe I need to be able to do
something like  as user A
"su - B" without being prompted for password.

Appreciate suggestions in advance.

Pasha

BTW: I am using AIX 4.3.10

2. Static IP Adress for network Card

3. How can non-root users access serial ports

4. ext2-fs panic

5. Port I/O access as Non-root user ???

6. Netgear 10/100 PCI card drivers?

7. Granting root access to defined non-root users...

8. New to Linux- how do I install Theme Manager ?

9. Root Access to non-root users

10. Can't start Netscape server on port 80 as a non-root non-nobody user.

11. Non-root Users Cannot Gain Access

12. Non-root user cannot access PPP