Nrpe Installation Tutorial

1.Nrpe Installation

Create Nagios User

Useradd Nagios

1.1 Installed Nagios plugin by the monitor server

Tar xzvfnagios-plugins-1.4.15.tar.gz

CD nagios-plugins-1.4.15

./configure

Make

Make install

1.2 The monitor server installs the Nrpe program

Tar xzvf nrpe-2.1.2.tar.gz

CD nrpe-2.1.2

./configure--prefix=/usr/local/nagios

Make all

Make Install-plugin

Make Install-daemon

Make Install-daemon-config

Check plug-in Installation

ll/usr/local/nagios/libexec/

1.3 Modify the Nrpe configuration file, add the allowed IP

#vi/usr/local/nagios/etc/nrpe.cfg

allowed_hosts=127.0.0.1,192.169.0.201

Start Nrpe

#/usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe.cfg-d

# netstat-plnt |grep Nrpe

TCP 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 16831/nrpe

1.4 Join the Boot self

Echo '/usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe.cfg-d ' >>/etc/rc.local

1.5 Verify that the client Nrpe is installed on the main nagios.

[Root@nagios-server src]#/usr/local/nagios/libexec/check_nrpe-h 192.168.1.100

NRPE v2.12

If the version number appears, the Nrpe client installation succeeds.

2 main Nagios Call Nrpe configuration

2.1 Edit the Nrpe configuration file on the client

#vi/usr/local/nagios/etc/nrpe.cfg

Command[check_users]=/usr/local/nagios/libexec/check_users-w 5-c 10

Command[check_load]=/usr/local/nagios/libexec/check_load-w 15,10,5-c 30,25,20

2.2 Defining the client host on the primary Nagios

#vi/usr/local/nagios/etc/objects/hosts.cfg

Define Host{

Use Linux-server,host-pnp

HOST_NAME HostB

Alias HostB

Address 192.168.1.100

}

2.3 Configuring services on the main Nagios

#vi/usr/local/nagios/etc/objects/services.cfg

Define Service{

Use Generic-service,srv-pnp

HOST_NAME HostB

Service_description check_users

Check_command check_nrpe!check_users

Max_check_attempts 5

Normal_check_interval 1

}

Define Service{

Use Generic-service,srv-pnp

HOST_NAME HostB

Service_description Check_load

Check_command Check_nrpe!check_load

Max_check_attempts 5

Normal_check_interval 1

}

2.4 Restart the main Nagios service

#/etc/init.d/nagios Checkconfig

#/etc/init.d/nagios restart