【Nagios】nagios服务器添加监控远程Linux主机
一、远程主机添加nagios用户
[root@yo ~]# useradd -s /sbin/nologin nagios
二、安装nagios-plugins插件
[root@yo nagios-plugins-2.1.1]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios [root@yo nagios-plugins-2.1.1]# make && make install
三、查看生成的目录文件
[root@yo nagios-plugins-2.1.1]# ls /usr/local/nagios/ include libexec share
四、安装nrpe
[root@yo nrpe-2.15]# ./configure [root@yo nrpe-2.15]# make all [root@yo nrpe-2.15]# make install-daemon [root@yo nrpe-2.15]# make install-daemon-config [root@yo nrpe-2.15]# make install-plugin
五、安装nrpe守护进程的服务xinetd
[root@yo nrpe-2.15]# 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
[root@yo nrpe-2.15]# vim /etc/services nrpe 5666/tcp #nrpe
八、安装xinetd软件包，并重启xinetd服务
[root@yo nrpe-2.15]# yum -y install xinetd [root@yo nrpe-2.15]# /etc/init.d/xinetd restart Stopping xinetd: [FAILED] Starting xinetd: [ OK ]
九、查看监听端口和nrpe进程有没有起来
[root@yo nrpe-2.15]# netstat -ntlp |grep 5666 tcp 0 0 :::5666 :::* LISTEN 73351/xinetd
[root@yo nrpe-2.15]# 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
[root@yo nrpe-2.15]# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 NRPE v2.15 [root@yo nrpe-2.15]# /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 [root@yo nrpe-2.15]# /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;
[root@yo nrpe-2.15]# /usr/local/nagios/libexec/check_nrpe -H localhost NRPE v2.15 [root@yo nrpe-2.15]# /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
[root@www ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.1.250 NRPE v2.15 [root@www ~]# /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
[root@www ~]# vim /etc/nagios/nagios.cfg cfg_file=/etc/nagios/objects/hosts.cfg cfg_file=/etc/nagios/objects/services.cfg [root@www ~]# touch /etc/nagios/objects/hosts.cfg [root@www ~]# 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
[root@www ~]# /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg Total Warnings: 0 Total Errors: 0 [root@www ~]# service nagios restart
十六、在web页面上查看结果
