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並設置開機自啟動
/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