how to enable MRTG in nagios

pawanopensource
pawanopensource used Ask the Experts™
on
i have configured nagios,  i want to view mrtg graph for bandwidth utilization, but  bandwidth graph is not showing. here is the config which i have done and

########################################################################

###############################################################################
# SWITCH.CFG - SAMPLE CONFIG FILE FOR MONITORING A SWITCH
#
# Last Modified: 10-03-2007
#
# NOTES: This config file assumes that you are using the sample configuration
#        files that get installed with the Nagios quickstart guide.
#
###############################################################################




###############################################################################
###############################################################################
#
# HOST DEFINITIONS
#
###############################################################################
###############################################################################

# Define the switch that we'll be monitoring

define host{
        use             generic-switch          ; Inherit default values from a template
        host_name       54-NSEZ-VERIZON-MPLS            ; The name we're giving to this switch
        alias           54-NSEZ-verizon-mpls    ; A longer name associated with the switch
        address         1.1.1.1          ; IP address of the switch
        hostgroups      switches                ; Host groups this switch is associated with
        }




###############################################################################
###############################################################################
#
# HOST GROUP DEFINITIONS
#
###############################################################################
###############################################################################

# Create a new hostgroup for switches
#define hostgroup{
#       hostgroup_name  switches                ; The name of the hostgroup
#       alias           Network Switches        ; Long name of the group
#       }




###############################################################################
###############################################################################
#
# SERVICE DEFINITIONS
#
###############################################################################
###############################################################################

# Create a service to PING to switch

define service{
        use                     generic-service ; Inherit values from a template
        host_name               54-NSEZ-VERIZON-MPLS    ; The name of the host the service is associated with
        service_description     PING            ; The service description
        check_command           check_ping!200.0,20%!600.0,60%  ; The command used to monitor the service
        normal_check_interval   5               ; Check the service every 5 minutes under normal conditions
        retry_check_interval    1               ; Re-check the service every minute until its final/hard state is determined
        }


# Monitor uptime via SNMP

define service{
        use                     generic-service ; Inherit values from a template
        host_name               54-NSEZ-VERIZON-MPLS
        service_description     Uptime
        check_command           check_snmp!-C public -o sysUpTime.0
        }



# Monitor Port 1 status via SNMP
define service{
        use                     generic-service ; Inherit values from a template
        host_name               54-NSEZ-VERIZON-MPLS
        service_description     Port 1 Link Status
        check_command           check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB
        }



# Monitor bandwidth via MRTG logs

define service{
        use                     generic-service ; Inherit values from a template
        host_name               54-NSEZ-VERIZON-MPLS
        service_description     Port 1 Bandwidth Usage
        check_command           check_local_mrtgtraf!/var/lib/mrtg/1.1.1.1_1.log!AVG!1000000,1000000!5000000,5000000!10
        }

#######################################################################


mrtg.JPG
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Author

Commented:
thx for the link, can u please guide me which pluggins i have to install.
Commented:
I find pnp4nagios is the easiest way to generate bandwidth graphs as well as other grpahs in nagios

http://www.docs.pnp4nagios.org/start
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Author

Commented:
friend can u plz help me dxb.pawan at the rate gmail dot com
Top Expert 2011
Commented:
1. You need to install and configure MRTG first.
Please check this guide for the setup and configuration
http://oss.oetiker.ch/mrtg/doc/mrtg-unix-guide.en.html

2. The integrate Nagios with MRTG
You can use Nagiostats utility, which comes with Nagios standard installation.
  Here is the guide (check the "MRTG integration" section)
  http://nagios.manubulon.com/traduction/docs25en/nagiostats.html
Or use some other tool like serverscheck (You need to configure your network device to send out SNMP trap)
http://www.serverscheck.com/sensors/mrtg.asp

Author

Commented:
thx wesly for guiding me through steps. i am trying to configure mrtg from the given link

http://oss.oetiker.ch/mrtg/doc/mrtg-unix-guide.en.html

when i am running mrtg by this command /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg its giving error

[root@xav-ind-lap-48 ~]# /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
-----------------------------------------------------------------------
ERROR: Mrtg will most likely not work properly when the environment
       variable LANG is set to UTF-8. Please run mrtg in an environment
       where this is not the case. Try the following command to start:

       env LANG=C /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
-----------------------------------------------------------------------
Top Expert 2011

Commented:
echo "export LANG=en_US" >> /root/.bashrc
. /root/.bashrc
/usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg

Author

Commented:
friend this is the output which i am getting when giving those three commands

[root@xav-ind-lap-48 src]# echo "export LANG=en_US" >> /root/.bashrc
[root@xav-ind-lap-48 src]#


[root@xav-ind-lap-48 src]#  /root/.bashrc
-bash: /root/.bashrc: Permission denied



[root@xav-ind-lap-48 src]# /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
-----------------------------------------------------------------------
ERROR: Mrtg will most likely not work properly when the environment
       variable LANG is set to UTF-8. Please run mrtg in an environment
       where this is not the case. Try the following command to start:

       env LANG=C /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
-----------------------------------------------------------------------
Top Expert 2011

Commented:
. /root/.bashrc
you missing the "." and blank space.

Author

Commented:
thx for your continuous support, here is the output for the command

[root@xav-ind-lap-48 src]# . /root/.bashrc
[root@xav-ind-lap-48 src]#
Top Expert 2011

Commented:
then this should be ok.
/usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg

Author

Commented:
[root@xav-ind-lap-48 src]# /usr/local/mrtg-2/bin/mrtg /home/mrtg/cfg/mrtg.cfg
2011-05-25 10:43:36: ERROR: Creating templock /home/mrtg/cfg/mrtg.cfg_l_16067: No such file or directory at /usr/local/mrtg-2/bin/mrtg line 1968.
Top Expert 2011

Commented:
Which Linux distribution do you have? Fedora 14/RedHat 5x/CentOS 5.x, Ubuntu 10.x or Debian?
There are a lot of requirement for MRTG to install. So install from the Linux distribution repository might be easier for you.

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