nrpe的安裝
??? tar xvfz nrpe-2.13.tar.gz

??? cd nrpe-2.13

??? ./configure

??? make all

??? make install-plugin

??? make install-daemon

??? make install-daemon-config

??? yum install xinetd

??? make install-xinetd


[root@nhserver2 ~]# vim /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1,192.168.5.10


[root@nhserver2 ~]# vim /etc/xinetd.d/nrpe
# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
??????? flags?????????? = REUSE
??????? socket_type???? = stream
??????? port??????????? = 5666
??????? wait??????????? = no
??????? user??????????? = nagios
??????? group?????????? = nagios
??????? server????????? = /usr/local/nagios/bin/nrpe
??????? server_args???? = -c /usr/local/nagios/etc/nrpe.cfg --inetd
??????? log_on_failure? += USERID
??????? disable???????? = no
??????? only_from?????? = 127.0.0.1 192.168.5.10?? # 這個IP可以不變，為本機
}


[root@nhserver2 ~]# /usr/local/nagios/libexec/check_nrpe -H localhost
NRPE v2.12

[root@nhserver2 ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.5.10??? #192.168.5.10為nagios服務器的ip
NRPE v2.12

[root@nhserver2 ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.5.110?? #192.168.5.110還未開機
Connection refused or timed out

[root@nhserver2 ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.5.110?? #192.168.5.110開機
CHECK_NRPE: Error - Could not complete SSL handshake.


[root@nhserver2 ~]# service xinetd restart? #重啟nrpe服務

=========================================================================================================================
在192.168.5.110被監控端安裝nrpe

1.安裝nrpe依賴包
yum -y install gcc glibc glibc-common openssl openssl-devel

2.安裝nagios-plugin
useradd nagios

wget http://sourceforge.net/projects/nagiosplug/files/nagiosplug/1.4.15/nagios-plugins-1.4.15.tar.gz/download

tar zxf nagios-plugins-1.4.15.tar.gz && cd nagios-plugins-1.4.15
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
chown -R nagios.nagios /usr/local/nagios

3.安裝nrpe
wget http://nchc.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.12/nrpe-2.12.tar.gz
tar zxf nrpe-2.12.tar.gz && cd nrpe-2.12
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config

4.啟動nrpe并設置開機自啟動
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
echo "/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d" >> /etc/rc.d/rc.local




[root@nhserver1 ~]# vim /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1,192.168.5.10?? #將nagios的服務端IP加上


[root@nhserver1 ~]# vim /etc/xinetd.d/nrpe
# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
??????? flags?????????? = REUSE
??????? socket_type???? = stream
??????? port??????????? = 5666
??????? wait??????????? = no
??????? user??????????? = nagios
??????? group?????????? = nagios
??????? server????????? = /usr/local/nagios/bin/nrpe
??????? server_args???? = -c /usr/local/nagios/etc/nrpe.cfg --inetd
??????? log_on_failure? += USERID
??????? disable???????? = no
??????? only_from?????? = 127.0.0.1 192.168.5.10?? #將nagios的服務端IP加上



}

==============? 在nagios服務端測試 ====================
[root@nhserver2 ~]#
NRPE v2.12


=================================================================


要在被監控端192.168.5.110加入自定義的腳本

[root@nhserver1 libexec]# vim /usr/local/nagios/libexec/nh_check_users

#!/bin/bash
# for nrpe check user
U=`who | wc -l`
if [ $U -le 3 ];then
echo "OK,current user is.$U"
exit 0
elif [ $U -gt 6 ];then
echo "CRITICAL,current user is.$U"
exit 2
else
echo "WARNING,current user is.$U"
exit 1
fi

定義該腳本為nagios用戶和nagios組

[root@nhserver1 libexec]# chown nagios.nagios /usr/local/nagios/libexec/nh_check_91

在NRPE上加入該自定義命令

[root@nhserver1 libexec]# vim /usr/local/nagios/etc/nrpe.cfg

command[nh_check_users]=/usr/local/nagios/libexec/nh_check_users

在服務端測試192.168.5.10，直接使用命令行
[root@nhserver2 libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.5.110 -c nh_check_users
OK,current user is.1



=========================================================================

在服務端測試192.168.5.10的nagios中加入自定義腳本
[root@nhserver2 objects]# cd /usr/local/nagios/etc/objects

[root@nhserver2 objects]# vim hosts_192.168.5.110.cfg
define host{
??????? use???????????????????? linux-server
??????? host_name?????????????? 192.168.5.110
??????? alias?????????????????? 192.168.5.110
??????? address???????????????? 192.168.5.110
??????? }

define hostgroup{
??????? hostgroup_name????????? nh_linuxs
??????? alias?????????????????? nh_linuxs
??????? members???????????????? 192.168.5.110
??????? }

define service{
??????? use???????????????????? local-service
??????? host_name?????????????? 192.168.5.110
??????? service_description???? check-host-alive
??????? check_command?????????? check-host-alive
??????? max_check_attempts????? 5
??????? normal_check_interval?? 3
??????? retry_check_interval??? 2
??????? check_period??????????? 24x7
??????? notification_interval?? 10
??????? notification_period???? 24x7
???? }

define service{
??????? use???????????????????? local-service
??????? host_name?????????????? 192.168.5.110
??????? service_description???? SSH
??????? check_command?????????? check_ssh
??????? max_check_attempts????? 5
??????? normal_check_interval?? 3
??????? retry_check_interval??? 2
??????? check_period??????????? 24x7
??????? notification_interval?? 10
??????? notification_period???? 24x7
??????? }

define service{
??????? use???????????????????? local-service
??????? host_name?????????????? 192.168.5.110
??????? service_description???? check_nrpe_check_users
??????? check_command?????????? check_nrpe!nh_check_users
??????? max_check_attempts????? 5
??????? normal_check_interval?? 3
??????? retry_check_interval??? 2
??????? check_period??????????? 24x7
??????? notification_interval?? 10
??????? notification_period???? 24x7
??????? }

過一下，在nagios中就能觀察到check_nrpe_check_users自定義服務的狀態了，"OK,current user is.1".
[root@nhserver2 objects]# service nagios reload


Host Sort by host name (ascending)Sort by host name (descending)?? ?Service Sort by service name (ascending)Sort by service name (descending)?? ?

Status Sort by service status (ascending)Sort by service status (descending)?? ?Last Check Sort by last check time (ascending)Sort by last check time

(descending)?? ?Duration Sort by state duration (ascending)Sort by state duration time (descending)?? ?Attempt Sort by current attempt (ascending)Sort by

current attempt (descending)?? ?Status Information
192.168.5.110
?? ?
?? ?
SSH
?? ?
?? ?OK ?? ?04-04-2014 20:22:01 ?? ?0d 0h 1m 56s ?? ?1/5 ?? ?SSH OK - OpenSSH_5.3 (protocol 2.0)
?? ?
check-host-alive
?? ?
?? ?OK ?? ?04-04-2014 20:22:50 ?? ?0d 0h 2m 56s ?? ?1/5 ?? ?PING OK - Packet loss = 0%, RTA = 0.61 ms
?? ?
check_nrpe_check_users
?? ?
?? ?OK ?? ?04-04-2014 20:23:38 ?? ?0d 0h 0m 19s ?? ?1/5 ?? ?OK,current user is.1

轉載于:https://www.cnblogs.com/nhlinkin/p/3645951.html

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