1、安装所需组件

   yum install perl perl-devel perl-CPAN bc -y

   perl -MCPAN -eshell  & cpan> install Bundle::LWP

   编译安装nrpe（参考教程：http://2860664.blog.51cto.com/2850664/1559056）

以下是被监控端设置

2、下载check_nginx_status.pl脚本

   下载地址：https://codeload.github.com/regilero/check_nginx_status/zip/master

   解压文件后，上传check_nginx_status.pl到/usr/local/nagios/libexec

   chmod +x check_nginx_status.pl

   chown nagios.nagcmd check_nginx_status.pl

3、在被监控端测试脚本

   cd /usr/local/nagios/libexec

   ./check_nginx_status.pl -H 192.168.1.247 -s www.xxx.com -P 80

NGINX OK -  0.067 sec. response time, Active: 1 (Writing: 1 Reading: 0 Waiting: 0) ReqPerSec: 0.111 ConnPerSec: 0.111 ReqPerConn: 1.000|Writing=1;;;; Reading=0;;;; Waiting=0;;;; Active=1;;;; ReqPerSec=0.111111;;;; ConnPerSec=0.111111;;;; ReqPerConn=1.000000;;;;

   其中红色为nginx服务器的IP地址；绿色为需要监控的网站网址。

4、vi /usr/local/nagios/etc/nrpe.cfg  添加

command[check_nginx]=/usr/local/nagios/libexec/check_nginx_status.pl -H 192.168.1.247 -s www.xxx.com -P 80

5、删除/tmp生成的192.168.1.247_check_nginx_status8d727909e5ace94dc547c3af50af6cb9不然后面后报错！提示无法生成文件。

   rm /tmp/192.168.1.247_check_nginx_status8d727909e5ace94dc547c3af50af6cb9

以下是nagios主机的设置

5、服务器端测试

   /usr/local/nagios/libexec/check_nrpe -H 192.168.1.247 -c check_nginx

NGINX OK -  0.065 sec. response time, Active: 1 (Writing: 1 Reading: 0 Waiting: 0) ReqPerSec: 0.020 ConnPerSec: 0.020 ReqPerConn: 1.000|Writing=1;;;; Reading=0;;;; Waiting=0;;;; Active=1;;;; ReqPerSec=0.020000;;;; ConnPerSec=0.020000;;;; ReqPerConn=1.000000;;;;

vi /usr/local/nagios/etc/nagios.cfg  添加

   cfg_file=/usr/local/nagios/etc/objects/nginx.cfg

6、touch /usr/local/nagios/etc/objects/nginx.cfg

   vi /usr/local/nagios/etc/objects/nginx.cfg  （注意修改被监控端的IP）内容如下  

****************************************我是分割线************************************   

define host{
           use             linux-server
          host_name     nginx
          alias         nginx
          address       被监控端IP
        }
define service{
        use                      generic-service
        host_name             nginx
        service_description     check-swap
        check_command        check_nrpe!check_swap
               }
define service{
        use                      generic-service
        host_name             nginx
        service_description     check-load
       check_command         check_nrpe!check_load
               }
define service{
        use                      generic-service
        host_name             nginx
       service_description     check-disk
       check_command        check_nrpe!check_sda1
               }
define service{
        use                      generic-service
        host_name             nginx
       service_description     check-users
       check_command        check_nrpe!check_users
               }
define service{
        use                    generic-service
        host_name           nginx
        service_description  otal_procs
        check_command     check_nrpe!check_total_procs
}
define service{
        use                             generic-service         ; Name of service template to use
        host_name                       nginx
        service_description             PING
        check_command                   check_ping!100.0,20%!500.0,60%
        }
define service{
    use                     generic-service
    host_name               nginx
    service_description     nginx_status
    check_command           check_nrpe!check_nginx!
        notifications_enabled           0
        }

****************************************我也是分割线************************************

报错信息

7、nagios服务器报错

NGINX UNKNOWN - unable to write temporary data in:/tmp/192.168.1.247_check_nginx_status8d727909e5ace94dc547c3af50af6cb9

解决方法：删除被监控主机/tmp下的文件192.168.1.247_check_nginx_status8d727909e5ace94dc547c3af50af6cb9

   rm /tmp/192.168.1.247_check_nginx_status8d727909e5ace94dc547c3af50af6cb9

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nagios监控nginx状态（check_nginx_status.pl）