09-09-2009
thankz radar and tigta09
Hi
I found the solution not exactly up to the point but will like to share.
This is what I did(logged in as a root)
1) Added a group : groupadd netadmins
2) Added a user : useradd admin1
3) Gave a password for admin1 : passwd admin1
4) Added admin1 as a member of group netadmins : usermod -g netadmins admin1
5) Edited /etc/sudoers : vi /etc/sudoers
added two lines
1st
#added this just after the "Cmnd_Alias NETWORKING decleration"
Cmnd_Alias TIGHTNETWORKING = /sbin/ifconfig, /bin/ping
2nd
#added this just after the "root ALL=(ALL) ALL"
%netadmins ALL = (ALL) NOPASSWD:TIGHTNETWORKING
saved the file with "wq!" as sudoers is a readonly file!
---------------------------------------------------------------------
The result
logged off from root, logged in as admin1.
executed the ifconfig and ping using sudo
[admin1@177 ~] sudo /sbin/ifconfig eth0 up
It worked out fine.
[admin1@177 ~] sudo /bin/ping x.x.x.x
This worked on fine and I later realized that ping works without sudo too.
This solved a major part of my problem i.e. now a non admin user can execute 'ifconfig' if the user
is a part of 'netadmins'.
Now does anyone has an idea how to disable all the other commands including "ll ls pwd ....etc etc"
Thankz in advance.
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LEARN ABOUT DEBIAN
mrtg-ping-probe
MRTG-PING-PROBE(1) General Commands Manual MRTG-PING-PROBE(1)
NAME
mrtg-ping-probe - ping probe module for Multi Router Traffic Grapher
DESCRIPTION
mrtg-ping-probe is a ping probe module for MRTG 2.x. It is used to monitor the round trip time and packet loss to networked devices. MRTG
uses the output of mrtg-ping-probe to generate graphs visualizing minimum and maximum round trip times or packet loss.
mrtg-ping-probe is not run directly, but is called by MRTG as a helper when it needs to determine ping time to a host.
Act responsibly: do not use mrtg-ping-probe to ping devices without the owner's permission. Just imagine if 10,000 people decided to ping
your hosts! mrtg-ping-probe is meant to be used within your network to get round trip time performance figures for your network.
OPTIONS
To use mrtg-ping-probe you need to configure MRTG to call it from within the definition of a target host. This is done in the MRTG config
file, which is usually /etc/mrtg.conf.
Here's an example snippet: change the target name and IP address to suit your needs.
Target[your.target.ping]: `/usr/bin/mrtg-ping-probe 123.456.789.123`
SetEnv[your.target.ping]: MRTG_INT_IP="123.456.789.123" MRTG_INT_DESCR="ping"
MaxBytes[your.target.ping]: 100
AbsMax[your.target.ping]: 200
Options[your.target.ping]: gauge, growright
YLegend[your.target.ping]: ping time (ms)
ShortLegend[your.target.ping]: ms
Legend1[your.target.ping]: Maximum Round Trip Time in ms
Legend2[your.target.ping]: Minimum Round Trip Time in ms
Legend3[your.target.ping]: Maximal 5 Minute Maximum Round Trip Time in ms
Legend4[your.target.ping]: Maximal 5 Minute Minimum Round Trip Time in ms
LegendI[your.target.ping]: Max:
LegendO[your.target.ping]: Min:
Pay close attention to the backticks in the first line which tell MRTG to execute the nominated external program. Note also that you need
to use the "gauge" option, since the results of subsequent ping probes are independant values and not an incrementing counter.
SEE ALSO
mrtg(1).
The latest release of mrtg-ping-probe can be found on the web at http://pwo.de/projects/mrtg/
AUTHOR
This manual page was written by Jonathan Oxer <jon@debian.org>, for the Debian project (but may be used by others).
April 14, 2003 MRTG-PING-PROBE(1)