NRPE 添加命令（四）

模式2 带参数

nrpe 安装中带 --enable-command-args 参数

nrpe.cfg 中添加

dont_blame_nrpe=1 才能接受用户传递参数

command $check_file_num$ =/usr/local/nagios/libexec/check_file_num.sh $ARG1$

监控机上

command.cfg 【改名】

#check_file

define command{

command_name check_file_num

command_line $USER1$ /check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -a $ARG2$

}

#services.cfg 文件

define service{

use local-service

host_name nagios-client

service_description Current File Num

check_command check_file_num!check_file_num!"-w 40 -c 70"

}

./check_nrpe -H 192.168.146.170 -c check_file_num -a 40 80

KILL 进程并重启nrpe

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

重启监控机上的nagios服务

/etc/init.d/nagios reload

#############固定端口检测

1.agent 配置修改

nrpe.cfg

command $check_port_80$ =/usr/local/nagios/libexec/check_port 80

2.重启nrpe 客户端

kill -9 nrpe

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

3.添加脚本

vi /usr/local/nagios/libexec/check_port

#!/bin/bash

port="$1"

tips="`netstat -anpl|grep -iE \":${1}\b\"|grep LISTEN|wc -l`"

if $$tips -gt 0$

then

echo 1

else

echo 0

4.监控机服务添加

define service{

use hk-service,service-pnp

host_name haproxy_136

service_description http_80

check_command check_nrpe!check_port_80

}

5.重载nagios服务

/etc/init.d/nagios reload

自定义Nagios NRPE脚本EXIT退出值和nagios状态都应关系：

|----------|---------|----------------------------------|-----------------------------------------|
| 状态 | EXIT退出值 | 输出 | 例子 |
| OK | 0 | echo "OK - it's ok." | echo "OK - it's ok." exit 0 |
| WARNING | 1 | echo "WARNING - it's warning." | echo "WARNING - it's warning." exit 1 |
| CRITICAL | 2 | echo "CRITICAL - it's critical." | echo "CRITICAL - it's critical." exit 2 |
| UNKNOWN | 3 | echo "UNKNOWN - it's unknown." | echo "UNKNOWN - it's unknown." exit 3 |

错误的例子：

shell脚本中echo和退出值：

echo "OK - it's ok."

exit 1

此时，Nagios会显示：

这条服务对应的状态是"WARNING"，但是输出的信息是"OK - it's ok."