centos7安装nagios

引用大神文章出处：https://blog.51cto.com/12173069/2070827

安装环境

服务端:docker 环境 centos7 IP 172.172.0.110
客户端:docker 环境 centos7 IP 172.172.0.40

一、更改yum源

1.删除旧的源

rm  -rf  /etc/yum.repos.d/*

2.下载repo文件

wget  -O  /etc/yum.repos.d/centos7.repo  http://mirrors.aliyun.com/repo/Centos-7.repo
wget  -O  /etc/yum.repos.d/centos7-epel.repo  http://mirrors.aliyun.com/repo/epel-7.repo

3.生成缓存

yum clean all
yum makecache

二、服务端配置

1.安装软件

yum  -y  install  nagios  nagios-plugins  nagios-plugins-all  nagios-plugins-nrpe  nrpe

2.修改nagios主配置文件

vi /etc/nagios/nagios.cfg

添加该行

cfg_dir=/etc/nagios/conf.d  #确保其中有这行代码

3.修改cgi配置文件，添加用户

vi /etc/nagios/cgi.cfg

authorized_for_system_information=nagiosadmin,lee
authorized_for_configuration_information=nagiosadmin,lee
authorized_for_system_commands=nagiosadmin,lee
authorized_for_all_services=nagiosadmin,lee
authorized_for_all_hosts=nagiosadmin,lee
authorized_for_all_service_commands=nagiosadmin,lee
authorized_for_all_host_commands=nagiosadmin,lee

4.修改命令配置文件command.cfg

vi /etc/nagios/objects/commands.cfg

#添加
define command{
command_name  check_nrpe
command_line  $USER1/check_nrpe  -H  $HOSTADDRESS  -c  $ARG1
}

5.修改联系人配置文件：

vi /etc/nagios/objects/contacts.cfg

define contact{
    contact_name                    nagiosadmin     
use             generic-contact     
    alias                           Nagios Admin        
    email                           696721**@qq.com
    }
define contactgroup{
    contactgroup_name       admins
    alias                   Nagios Administrators
    members                 nagiosadmin
    }

6.添加远程主机的监控指令（可以用本地配置文件/etc/nagios/objects/localhost.cfg作为模板）
创建目录

mkdir /etc/nagios/conf.d/

cp -arf /etc/nagios/objects/localhost.cfg /etc/nagios/conf.d/lee.cfg

vi /etc/nagios/conf.d/lee.cfg

define host{
    use                     linux-server            
    host_name               lee
    alias                   lee
    address                 172.172.0.40  #被监控客户机
    }
#去掉这组定义
#define hostgroup{
#        hostgroup_name  linux-servers 
#        alias           Linux Servers 
#        members         lee     
#        }
define service{
    use                             local-service         
    host_name                       lee
    service_description             PING
check_command           check_ping!100.0,20%!500.0,60%
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             Root Partition
check_command           check_local_disk!20%!10%!/
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             Current Users
check_command           check_local_users!20!50
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             Total Processes
check_command           check_local_procs!250!400!RSZDT
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             Current Load
check_command           check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             Swap Usage
check_command           check_local_swap!20!10
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             SSH
check_command           check_ssh
notifications_enabled       0
    }
define service{
    use                             local-service         
    host_name                       lee
    service_description             HTTP
check_command           check_http
notifications_enabled       0
    }

7.检查配置文件语法：

nagios -v /etc/nagios/nagios.cfg

8.修改nagios相关目录权限：

chown  nagios.nagios  /etc/logrotate.d/nagios
chmod  g+w  /etc/logrotate.d/nagios
chown  -R  nagios.nagios  /etc/nagios

9.设置apache账户密码：

htpasswd  -c  /etc/nagios/passwd  lee

10.启动服务：

systemctl  start  httpd
systemctl  start  nagios

三、客户端配置

1.客户端同步修改yum源操作
2.安装软件

yum  -y  install  nagios-plugins  nagios-plugins-nrpe  nrpe

3.修改 nrpe 主配置文件

vi /etc/nagios/nrpe.cfg

#添加服务端ip
allowed_hosts=127.0.0.1,172.172.0.110

4.启动nrpe服务

systemctl  start  nrpe

5.测试