写给本身 :linux运维,本身动手趟一遍php
目前愈来愈多的人都开始使用centos7了,就像win7超越xp同样,新技术永远是愈来愈让人慢慢接受的。为了快速布暑,所有使用yum安装。mysql
环境linux
监控服务器:192.168.88.21ios
被监控客户端:192.168.88.22sql
关闭防火墙(所有服务器)数据库
#systemctl stop firewalld #systemctl disable firewalld #setenforce 0 #sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
更新时间同步(所有服务器)apache
#yum install ntpdate #ntpdate cn.pool.ntp.org #echo "*/5 * * * * /usr/sbin/ntpdate cn.pool.ntp.org" >>/var/spool/cron/root
安装epel源(所有服务器)centos
#yum install epel-release
-----------------------------------------------------------------------
浏览器
服务器端安装(192.168.88.21)bash
#yum install mariadb-server mariadb //默认数据库 #yum install httpd php php-gd //apache+php环境 #yum install nagios nagios-plugins-all nagios-plugins-nrpe nrpe #systemctl start mariadb #mysql_secure_installation //初始化数据库
设置nagios访问用户名和密码,使用默认nagiosadmin和默认保存位置,省心
#htpasswd -c /etc/nagios/passwd nagiosadmin 回车,设置密码
#systemctl start mariadb #systemctl start httpd #systemctl start nagios
登录http://192.168.88.21/nagios/ 输入以前设置的用户名 nagiosadmin 及密码,就能够登入了。
----------------------------------------------------------------------
监控服务器端(192.168.88.21) 配置
添加nrpe的定义
#vi /etc/nagios/objects/commands.cfg
# 'check_nrpe' command definition define command{ command_name check_nrpe command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ } # 'check_nrpe_memory' command definition define command{ command_name check_nrpe_memory command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c check_mem }
新建监控主机配置文件
#vi /etc/nagios/objects/hosts.cfg define host{ use linux-server host_name 192.168.88.22 alias 192.168.88.22 address 192.168.88.22 }
新建监控服务配置文件
#vi /etc/nagios/objects/services.cfg define service { use local-service host_name 192.168.88.22 service_description check-host-alive check_command check-host-alive } define service { use generic-service host_name 192.168.88.22 service_description Disk Partition check_command check_nrpe!check_disk } define service { use generic-service host_name 192.168.88.22 service_description load check_command check_nrpe!check_load } define service { use generic-service host_name 192.168.88.22 service_description memory check_command check_nrpe_memory } define service { use generic-service host_name 192.168.88.22 service_description swap check_command check_nrpe!check_swap }
#nagios -v /etc/nagios/nagios.cfg 检测配置文件是否正确 #systemctl restart nagios 重启一下 nagios
----------------------------------------------------------------------
监控客户端安装(192.168.88.22):
安装被监控的插件及nrpe
#yum install nagios-plugins-nrpe nrpe nagios-plugins-all
配置nrpe
#vi /etc/nagios/nrpe.cfg allowed_hosts=127.0.0.1,192.168.88.21 #容许被服务器监控 command[check_disk]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% command[check_swap]=/usr/lib64/nagios/plugins/check_swap -w 20% -c 10% command[check_iostat]=/usr/lib64/nagios/plugins/check_iostat -d sda -w 1000 -c 2000 command[check_mem]=/usr/lib64/nagios/plugins/check_mem -w 80 -c 70 #echo 'nrpe:192.168.88.21' >>/etc/hosts.allow
check_iostat所须要命令
#yum install sysstat bc
check_mem和check_iostat这二个检测插件,
请看附件下载,并解压到/usr/lib64/nagios/plugins 目录下
记得加执行权限
#chmod +x check_iostat check_mem
启动nrpe
#systemctl start nrpe
---------------------------------------------------
打开浏览器,查看一下,是否能正常监控到数据了: