nagiospassive被动监控安装

yum install nagios nsca* nagios-plugins*

2、更改配置文件 nagios.cfg

check_external_commands = 1 （enable commands file）

command_check_interval = -1 （check the external command file as often as possible ）

cfg_dir=/etc/nagios/conf.d

此目录下放置hosts和services的配置文件

[root@yourhostname conf.d]# cat hosts.cfg

define host {

use linux-server

host_name useyourhostname

alias myself

address 192.168.4.63

}

[root@yourhostname conf.d]# cat myself.cfg

define service{

use generic-service,services-pnp

host_name useyourhostname #主机名必须匹配

service_description check-swap

active_checks_enabled 0

check_freshness 1

passive_checks_enabled 1

check_command check_dummy!2

}

[root@yourhostname client]# pwd

/etc/nagios/client

[root@yourhostname client]# cat check_ser.sh

#!/bin/bash

hostname=`hostname`

Plugin_path=/usr/lib64/nagios/plugins/

#1.swap

result=$($Plugin_path/check_swap -w 50% -c 20%)

status=$?

output=$(echo "$result"|awk -F'|' '{print $1}')

echo -e "$hostname;check-swap;$status;$output"

[root@yourhostname client]# cat nagios_check

#!/bin/bash

NSER=yourmaster

CHECK_PATH="/etc/nagios/client/"

RESULT_FILE="/tmp/nagios_result"

/bin/bash "$CHECK_PATH"/*.sh>/tmp/nagios_result

/usr/sbin/send_nsca -H "$NSER" -to 10 -d ";" -c /etc/nagios/send_nsca.cfg < /tmp/nagios_result

[root@yourhostname client]# crontab -l

*/5****/bin/sh /etc/nagios/client/nagios_check

编辑commands.cfg配置文件，添加

define command{

command_name check_dummy

command_line /usr/lib64/nagios/plugins/check_dummy $ARG1$

}

编辑templates.cfg配置文件，

define service{

name generic-service ; The 'name' of this service template

active_checks_enabled 0 ; Active service checks are enabled

passive_checks_enabled 1 ; Passive service checks are enabled/accepted

parallelize_check 1 ; Active service checks should be parallelized (disabling this can lead to major performance problems)

obsess_over_service 1 ; We should obsess over this service (if necessary)

check_freshness 0 ; Default is to NOT check service 'freshness'

notifications_enabled 1 ; Service notifications are enabled

event_handler_enabled 1 ; Service event handler is enabled flap_detection_enabled 1 ; Flap detection is enabled

failure_prediction_enabled 1 ; Failure prediction is enabled process_perf_data 1 ; Process performance data

retain_status_information 1 ; Retain status information across program restarts

retain_nonstatus_information 1 ; Retain non-status information across program restarts

is_volatile 0 ; The service is not volatile

check_period 24x7 ; The service can be checked at any time of the day

max_check_attempts 3 ; Re-check the service up to 3 times in order to determine its final (hard) state normal_check_interval 10 ; Check the service every 10 minutes under normal conditions

retry_check_interval 2 ; Re-check the service every two minutes until a hard state can be determined

contact_groups admins ; Notifications get sent out to everyone in the 'admins' group

notification_options w,u,c,r ; Send notifications about warning, unknown, critical, and recovery events

notification_interval 60 ; Re-notify about service problems every hour

notification_period 24x7 ; Notifications can be sent out at any time

}

[root@yourhostname nagios]# /etc/init.d/nsca status

nsca (pid 30650) is running...

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