Setting up NRPE on Debian server¶

• Table of contents
• Setting up NRPE on Debian server
  • on client server
    • Install NRPE
    • Edit config file
    • start service
    • check that service is running
    • edit local config to add specified checks
    • restart service
  • on monitoring server
    • test connection
    • set up checks.

Process:

on client server¶

Install NRPE¶

aptitude install nagios-nrpe-server nagios-plugins-basic

Edit config file¶

vim /etc/nagios/nrpe.cfg

• Add IP_v4_of_Nagios_server to allowed_hosts

start service¶

service nagios-nrpe-server restart

check that service is running¶

netstat -tpln | grep 5666

edit local config to add specified checks¶

vim /etc/nagios/nrpe_local.cfg

Add a NRPE test check and a disk check.

0 octavia:/etc/nagios# cat nrpe_local.cfg 
######################################
# Do any local nrpe configuration here
######################################

command[check_nrpe_daemon]=/bin/echo "NRPE OK" 

# disk checks
command[check_disk_root]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/root

restart service¶

service nagios-nrpe-server restart

on monitoring server¶

test connection¶

On Nagios/Icinga server test that that worked:

/usr/lib/nagios/plugins/check_nrpe -H clientserveruri.com -c check_nrpe_daemon
NRPE OK

set up checks.¶

example service config file

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

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     SSH
        check_command           check_ssh
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     HTTP
        check_command           check_http
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     Users
        check_command           check_nrpe_1arg!check_users
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     Load
        check_command           check_nrpe_1arg!check_load
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     Zombie Processes
        check_command           check_nrpe_1arg!check_zombie_procs
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     Total Processes
        check_command           check_nrpe_1arg!check_total_procs
        }

define service{
        use                     generic-service         ; Inherit default values from a template
        host_name               clientserver
        service_description     Disk Space /root
        check_command           check_nrpe_1arg!check_disk_root
        }

sources:
http://xmodulo.com/2014/03/nagios-remote-plugin-executor-nrpe-linux.html
https://wiki.icinga.org/display/howtos/Setting+up+NRPE+with+Icinga