【Nagios】nagios服务器添加监控远程Linux主机
一、远程主机添加nagios用户
# useradd -s /sbin/nologin nagios
二、安装nagios-plugins插件
# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
# make && make install 三、查看生成的目录文件
# ls /usr/local/nagios/
includelibexecshare
四、安装nrpe
# ./configure
# make all
# make install-daemon
# make install-daemon-config
# make install-plugin 五、安装nrpe守护进程的服务xinetd
# make install-xinetd
/usr/bin/install -c -m 644 sample-config/nrpe.xinetd /etc/xinetd.d/nrpe
六、打开/etc/xinetd.d/nrpe文件，修改添加服务端IP
only_from = 127.0.0.1 localhost 192.168.1.21 七、添加nrpe守护进程端口号
# vim /etc/services
nrpe 5666/tcp #nrpe
八、安装xinetd软件包，并重启xinetd服务
# yum -y install xinetd
# /etc/init.d/xinetd restart
Stopping xinetd:
Starting xinetd:
九、查看监听端口和nrpe进程有没有起来
# netstat -ntlp |grep 5666
tcp 0 0 :::5666 :::* LISTEN 73351/xinetd# netstat -at | grep nrpe
tcp 0 0 *:nrpe *:* LISTEN
十、在远程主机运行check_nrpe测试有没有安装或配置成功
# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1
NRPE v2.15
# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c check_users
USERS OK - 5 users currently logged in |users=5;5;10;0
# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -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; load15=0.000;5.000;20.000;0;# /usr/local/nagios/libexec/check_nrpe -H localhost
NRPE v2.15
# /usr/local/nagios/libexec/check_nrpe -H localhost -c check_users
USERS OK - 5 users currently logged in |users=5;5;10;0
十一、以下是在服务端测试
# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.250
NRPE v2.15
# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.250 -c check_users
USERS OK - 5 users currently logged in |users=5;5;10;0
十二、服务端添加hosts.cfg和services.cfg两个文件，作为远程主机的监控配置文件
# vim /etc/nagios/nagios.cfg
cfg_file=/etc/nagios/objects/hosts.cfg
cfg_file=/etc/nagios/objects/services.cfg
# touch /etc/nagios/objects/hosts.cfg
# touch /etc/nagios/objects/services.cfg
十三、配置services.cfg文件
define service{
use generic-service
host_name tecmint
service_description CPU Load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name tecmint
service_description Total Processes
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name tecmint
service_description Current Users
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name tecmint
service_description SSH Monitoring
check_command check_nrpe!check_ssh
}
define service{
use generic-service
host_name tecmint
service_description FTP Monitoring
check_command check_nrpe!check_ftp
}
十四、配置hosts.cfg文件
## Default Linux Host Template ##
define host{
name linux-box ; Name of this template
use generic-host ; Inherit default values
check_period 24x7
check_interval 5
retry_interval 1
max_check_attempts 10
check_command check-host-alive
notification_period 24x7
notification_interval 30
notification_options d,r
contact_groups admins
register 0 ; DONT REGISTER THIS - ITS A TEMPLATE
}
## Default
define host{
use linux-box ; Inherit default values from a template
host_name tecmint ; The name we're giving to this server
alias CentOS 6.5 ; A longer name for the server
address 192.168.1.250 ; IP address of Remote Linux host
十五、检查配置并重启nagios
# /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg
Total Warnings: 0
Total Errors: 0
# service nagios restart 十六、在web页面上查看结果
http://s4.运维网.com/wyfs02/M00/79/9E/wKioL1aWTwrTYbBtAAKNLqV2vXA284.jpg
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