你知道安装nagios客户端nrpe吗？
来自：网络安装nrpe的过程：
[*]安装nrpe客户端：
[*]# useradd nagios nagios安装
[*]
[*]# tar -xzf nagios-plugins-1.4.15.tar.gz
[*]# cd nagios-plugins-1.4.15
[*]# ./configure
[*]# make && make install 开源监控软件
[*]
[*]# tar -xzf nrpe-2.12.tar.gz
[*]# cd nrpe-2.12
[*]# ./configure
[*]*** Configuration summary for nrpe 2.12 03-10-2008 ***:
[*]
[*]General Options:
[*]-------------------------
[*]NRPE port: 5666
[*]NRPE user: nagios
[*]NRPE group: nagios
[*]Nagios user:nagios
[*]Nagios group: nagios
[*]
[*]# make all && make install-plugin
[*]cd ./src/ && make install-plugin
[*]make: Entering directory `/root/nrpe-2.12/src'
[*]/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/libexec
[*]/usr/bin/install -c -m 775 -o nagios -g nagios check_nrpe /usr/local/nagios/libexec nagios配置
[*]make: Leaving directory `/root/nrpe-2.12/src'
[*]# make install-daemon
[*]cd ./src/ && make install-daemon
[*]make: Entering directory `/root/nrpe-2.12/src'
[*]/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/bin
[*]/usr/bin/install -c -m 775 -o nagios -g nagios nrpe /usr/local/nagios/bin
[*]make: Leaving directory `/root/nrpe-2.12/src'
[*]# make install-daemon-config
[*]/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/etc
[*]/usr/bin/install -c -m 644 -o nagios -g nagios sample-config/nrpe.cfg /usr/local/nagios/etc
[*]# make install-xinetd
[*]/usr/bin/install -c -m 644 sample-config/nrpe.xinetd /etc/xinetd.d/nrpe
[*]
[*]# 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 监控软件
[*] log_on_failure+= USERID
[*] disable = no
[*] only_from = 10.1.1.40
[*]}
[*]
[*]# service xinetd restart
[*]Stopping xinetd:
[*]Starting xinetd:
[*]# chkconfig --list | grep nrpe
[*] nrpe: on
[*]# netstat -tnlp | grep nrpe
[*]tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 25360/nrpe
[*]
[*]
[*]# vim /usr/local/nagios/etc/nrpe.cfg
[*]修一行：
[*]allowed_hosts=127.0.0.1,10.1.1.40
[*]
[*]本机测试！
[*]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[*]# /usr/local/nagios/libexec/check_nrpe -H localhost -c check_load
[*]OK - load average: 0.00, 0.00, 0.00|load1=0.000;15.000;30.000;0; load5=0.000;10.000;25.000;0; nagios实施
[*]
[*]load15=0.000;5.000;20.000;0;
[*]
[*]备注：有时候在客户端本机上测试时，发现会报错。CHECK_NRPE: Error - Could not complete SSL handshake.
[*]这个时候，注意下xinetd.d/nrpe 以及nrpe.conf 里关于allowed相关的选项，另外就是防火墙。
[*]使用xinetd后发现重启xinetd并不能重启nrpe,只有将其 T掉然后再开。
[*]
[*]从远程主机上测试下：
[*]# /usr/local/nagios/libexec/check_nrpe -H 10.1.1.10 -c check_total_procs nagios培训
[*]PROCS CRITICAL: 249 processes
[*]
[*]监控一下客户机的81，82服务吧！详见下篇
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