Nagios NRPE Concern

[vnoc]

Hi Team,

I have added a linux server and under it i have added few partition after adding these partitions while i am restart the nagios .I am getting 8 errors but i am unable to identify where it is. Please find the attached screenshot for reference and help me in fixing this.

[mcapra]

I think there may be some syntax errors with your check_command directives for the services you defined. Here are some from my lab machine:

Code: Select all

define service{
        use                             elasticsearch-prod
        hostgroup_name                  esprod
        service_description             CPU Usage
        check_command                   check_elasticsearch!checkcpu!-w 80 -c 90
        }

define service{
        use                             elasticsearch-prod
        hostgroup_name                  esprod
        service_description             Memory Usage
        check_command                   check_elasticsearch!checkmem!-w 80 -c 90
        }

Can you share some of the recently added configuration objects for review? Ideally, by using something like WinSCP or FileZilla to physically download the specific configuration files from the machine and upload it here directly. If that's not possible, we can start with a simple copy+paste.

[tmcdonald]

Thanks for the assist, @mcapra! OP, let us know if you need further assistance.

[vnoc]

Code: Select all

###############################################################################
# LOCALHOST.CFG - SAMPLE OBJECT CONFIG FILE FOR MONITORING THIS MACHINE
#
#
# NOTE: This config file is intended to serve as an *extremely* simple 
#       example of how you can create configuration entries to monitor
#       the local (Linux) machine.
#
###############################################################################




###############################################################################
###############################################################################
#
# HOST DEFINITION
#
###############################################################################
###############################################################################

# Define a host for the local machine

define host{
        use                     linux-server            ; Name of host template to use
							; This host definition will inherit all variables that are defined
							; in (or inherited by) the linux-server host template definition.
        host_name               xxx.xx.xx.xx-XX-XXX-XXX
        alias                   xxx.xx.xx.xx-XXXX-XXX-XXXXX-XXXX
        address                 xxx.xx.xx.xx
        }



###############################################################################
###############################################################################
#
# HOST GROUP DEFINITION
#
###############################################################################
###############################################################################

# Define an optional hostgroup for Linux machines


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


# Define a service to "ping" the local machine

define service{
        use                             local-service         ; Name of service template to use
        host_name                      xxx.xx.xx.xx-XX-XXX-XXX
        service_description             PING
	check_command			check_ping!100.0,20%!500.0,60%
	servicegroups			xxxxxxxx
        }


# Define a service to check the disk space of the root partition
# on the local machine.  Warning if < 20% free, critical if
# < 10% free space on partition.

#define service{
#        use                             local-service        ; Name of service template to use
#        host_name                    xxx.xx.xx.xx-XX-XXX-XXX
#        service_description            /root
#        check_command            check_nrpe!check_root
#        servicegroups  			xxxxxxxx
#        }

#define service{
#        use                             local-service       ; Name of service template to use
#        host_name                   xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /home
#        check_command            check_nrpe!check_home
#        servicegroups               xxxxxxxx
#        }
#define service{
#        use                             local-service      ; Name of service template to use
#        host_name                   xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /boot
#        check_command            check_nrpe!check_boot
#        servicegroups   	      xxxxxxxx
#        }

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /mlogserverj
#        check_command            check_nrpe!check_mlogserverj
#        servicegroups                   xxxxxxxx
#        }

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /dev/shm
#        check_command            check_nrpe!check_dev_shm
#        servicegroups                   xxxxxxxx
#        }

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /backup
#        check_command            check_nrpe!check_backup
#        servicegroups                   xxxxxxxx
#        }
#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /usr
#        check_command            check_nrpe!check_home!90%!95%!/home
#        servicegroups                   xxxxxxxx
#        }
#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             /var
#        check_command            check_nrpe!check_home!90%!95%!/home
#        servicegroups                   xxxxxxxx
#        }

# Define a service to check the number of currently logged in
# users on the local machine.  Warning if > 20 users, critical
# if > 50 users.

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#       service_description             Current Users
#	check_command		    check_nrpe!check_users!20!50
#	servicegroups                   xxxxxxxx
#       }


# Define a service to check the number of currently running procs
# on the local machine.  Warning if > 250 processes, critical if
# > 400 processes.

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             Total Processes
#	check_command			check_nrpe!check_total_procs!250!400!RSZDT
#	servicegroups                   xxxxxxxx
#        }



# Define a service to check the load on the local machine. 

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                      xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             CPU Load
#       check_command		check_nrpe!check_load!5.0,4.0,3.0!10.0,6.0,4.0
#	servicegroups                   xxxxxxxx
#        }



# Define a service to check the swap usage the local machine. 
# Critical if less than 10% of swap is free, warning if less than 20% is free

#define service{
#        use                             local-service         ; Name of service template to use
#        host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             Swap Usage
#	check_command			check_nrpe!check_swap!20!10
#	servicegroups                   xxxxxxxx
#       }



# Define a service to check SSH on the local machine.
# Disable notifications for this service by default, as not all users may have SSH enabled.

#define service{
#       use                             local-service         ; Name of service template to use
#      host_name                       xxx.xx.xx.xx-XX-XXX-XXX
#        service_description             SSH
#	check_command			check_nrpe!check_ssh
#	notifications_enabled		1
#	servicegroups                   xxxxxxxx
#        }



# Define a service to check HTTP on the local machine.
# Disable notifications for this service by default, as not all users may have HTTP enabled.

#define service{
#        use                           generic-service
#        host_name                    xxx.xx.xx.xx-XX-XXX-XXX
#        service_description            Memory Usage
#        check_command                  check_nrpe!check_mem
#       servicegroups                   xxxxxxxx
#       }

above is the file which i have added and the problem is coming when is add the partition details. kindly help in fixing this

[tgriep]

It looks like you could be missing the check_nrpe command that should be defined in the commands.cfg file.
Add the following command in there and see if that files it for you.

Code: Select all

define command {
       command_name                             check_nrpe
       command_line                             $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ $ARG2$
}

If you have any new errors, post them here.

[vnoc]

After adding this we have received below error

Error: CHECK_NRPE: Error - Could not connect to IPaddres: Connection reset by peer

and i just added -n before -c which is called as secured and then the issue got fixed

Below is the changes done
define command {
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -n -c $ARG1$ $ARG2$
}



Youc can close this topic

[bolson]

Closing topic as resolved.

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