Dear Experts,

I am using vicidialnow 1.2 VERSION: 2.0.4-122 and BUILD: 81011-0855 (CEntos Based Dialer). In all the way, it is working fine. I want to give the access of command /usr/sbin/mtr to a Normal System USer, which is not working according to my wish. I have make the entry in as sudo or make the soft link of /usr/sbin/mtr to /bin. But all in vain. And i am not in the condition to give the root access to the user. Kindly suggest the way.

-- With Thanks in advance

Symlinks do not work that way. They are designed to act as
cross references only, not to change security (That's why
every symlink has permissions "lrwxrwxrwx"), and that is deliberate.

To someone with a computer science degree I might simply
recommend to read "sudoers(5)". My advice to you is a little
different - Using a text editor program (like gedit or pico),
add a line similar to this to the "/etc/sudoers" text file:
my_non_root_mtr_user ALL = /usr/sbin/mtr

If you want to learn about this configuration file,
Open a terminal window, enter the command
"man 5 sudoers", then search for the examples section (by
entering "/EXAMPLES" and pressing enter).
That should give you a few ideas.

Thanks for the reply, but the said entry (/usr/sbin/mtr ) when user is executing the mtr command, it says that "unable to get raw sockets".

Kindly guide.

Sorry! I should also have mentioned:
The non-superuser can not execute the command directly, but only through the "sudo" tool -
With a command like this:
sudo /usr/sbin/mtr example_targetcomputer

Before executing mtr, the sudo tool will likely ask for a password to be entered. But this is not a request for the root password, merly a request for the user to repeat her normal account password.
HTH.

Millions of thanks to you Jebram. I was not issuing the command with sudo. This was the mistake. This way you saved my server from newbie hands.

Thanks again.