yum install -y epel-release yum install -y nagios-plugins nagios-plugins-allnrpe nagios-plugins-nrpe vim /etc/nagios/nrpe.cfg  找到“allowed_hosts=127.0.0.1” 改为“allowed_hosts=127.0.0.1,192.168.0.11”   #服务器的ip 找到” dont_blame_nrpe=0” 改为  “dont_blame_nrpe=1”

vim /etc/nagios/conf.d/192.168.0.12.cfg                  define host{         use                   linux-server                   host_name          192.168.0.12        alias                      0.12        address                192.168.0.12         } define service{         use                   generic-service        host_name              192.168.0.12                      service_description     check_ping        check_command          check_ping!100.0,20%!200.0,50%      #0是ok，20是警告,50是危险         max_check_attempts5                    #单位是秒数        normal_check_interval 1 } define service{         use                   generic-service        host_name              192.168.0.12        service_description     check_ssh        check_command          check_ssh        max_check_attempts      5    ；当nagios检测到问题时，一共尝试检测5次都有问题才会告警，如果该数值为1，那么检测到问题立即告警        normal_check_interval 1   ；重新检测的时间间隔，单位是分钟，默认是3分钟        notification_interval          60 ；在服务出现异常后，故障一直没有解决，nagios再次对使用者发出通知的时间。单位是分钟。如果你认为，所有的事件只需要一次通知就够了，可以把这里的选项设为0。 } define service{         use                   generic-service        host_name              192.168.0.12        service_description     check_http        check_command          check_http         max_check_attempts     5        normal_check_interval 1 }

define command{        command_name    check_nrpe    #去对方获得服务状态，可自定义        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$-c $ARG1$         }

vim/etc/nagios/conf.d/192.168.0.12.cfg      

define service{         use    generic-service        host_name       192.168.0.12        service_description     check_load        check_command          check_nrpe!check_load        max_check_attempts 5        normal_check_interval 1 } define service{         use    generic-service        host_name       192.168.0.12        service_description     check_disk_hda1        check_command          check_nrpe!check_hda1        max_check_attempts 5        normal_check_interval 1 } define service{         use    generic-service        host_name       192.168.0.12        service_description     check_disk_hda2        check_command          check_nrpe!check_hda2    #这个不要写错，是对应客户端的        max_check_attempts 5        normal_check_interval 1 }

vim /etc/nagios/objects/contacts.cfg //增加： define contact{         contact_name                                       use                           generic-contact         alias                         aming         email             @qq.com         } define contact{         contact_name                      use                           generic-contact         alias                          aaa         email             wsw@.com         } define contactgroup{                         #定义联系组         contactgroup_name          common         alias                                common         members                        ,         }

define service{         use    generic-service        host_name       192.168.0.12        service_description     check_load        check_command          check_nrpe!check_load        max_check_attempts 5        normal_check_interval 1         contact_groups       common                  #监控哪个发邮件        notifications_enabled  1    ；是否开启提醒功能。 1为开启，0为禁用。一般，这个选项会在主配置文件（nagios.cfg）中定义，效果相同。         notification_period  24x7   ；发送提醒的时间段。非常重要的主机（服务）我定义为7×24，一般的主机（服务）就定义为上班时间。如果不在定义的时间段内，无论什么问题发生，都不会发送提醒。              notification_options:w,u,c,r   ；这个是service的状态。w为waning， u为unknown, c为critical, r为recover(恢复了），类似的还有一个  host对应的状态：d,u,r   d = 状态为DOWN, u = 状态为UNREACHABLE , r = 状态恢复为OK，需要加入到host的定义配置里。 }

yum install pnp4nagios rrdtool

vim /etc/nagios/nagios.cfg  //修改如下配置   process_performance_data=      host_perfdata_command=process-host-perfdata   service_perfdata_command=process-service-perfdata   enable_environment_macros=  

  define command {          command_name    process-service-perfdata          command_line    /usr/bin/perl/usr/libexec/pnpnagios/process_perfdata.pl    }        define command {     command_name    process-host-perfdata          command_line    /usr/bin/perl/usr/libexec/pnpnagios/process_perfdata.pl -d HOSTPERFDATA    }

vim /etc/nagios/objects/templates.cfg definehost {         name      hosts-pnp        register   0         action_url/pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_        process_perf_data              1 } define service {         name      srv-pnp        register   0         action_url/pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$        process_perf_data              1 }

vim /etc/nagios/conf.d/192.168.0.12.cfg 把 “define host{         use                   linux-server”

define host{         use                   linux-server,hosts-pnp

define service{         use    generic-service        host_name       192.168.0.12        service_description     check_disk_hda1        check_command          check_nrpe!check_hda1        max_check_attempts 5        normal_check_interval 1 }

define service{         use    generic-service,srv-pnp        host_name       192.168.0.12        service_description     check_disk_hda1        check_command          check_nrpe!check_hda1        max_check_attempts 5        normal_check_interval 1 }

service nagios restart service httpd restart service npcd start

ip/nagios/ ip/pnp4nagios/