Nagios Custom Monitoring System disk script

Client

1. Create Script check_disk.sh

[email protected] ~]# vim/usr/lib64/nagios/plugins/check_disk.sh #一般都放在这个路径下

#!/bin/bash

row= ' Df-h|wc-l '

For i in ' seq 2 $row '

Do

ava= ' df-h|sed-n "$i" P|awk ' {print $4} ' #获取磁盘可用值

u_per= ' df-h|sed-n ' $i "p|sed-n" s/\%//"P|awk ' {print $" #获取使用百分比值

p_p= ' df-h|sed-n "$i" P|awk ' {print $6} ' #获取挂载分区

If ["$u _per"-GT "97"]

Then

Echo-n "$p _p CRITICAL $u _per% $ava"

sta[$i]=2

elif ["$u _per"-GT "95"]

Then

Echo-n "$p _p warning! $u _per% $ava "

sta[$i]=1

Else

Echo-n "$p _p OK $u _per% $ava"

sta[$i]=0

Fi

Done

N=0

For j in ' Seq 2 $row '

Do

If ["${sta[$j]}"-GT $n]

Then

n=${sta[$j]}

Fi

Done

Exit $n

##### #输出结果 ######

[Email protected] ~]# sh/usr/lib64/nagios/plugins/check_disk.sh

/OK 26% 13g/dev/shm ok 0% 242m/boot OK 8% 426M

[[email protected] ~]# echo $?

0

2, after saving, modify the permissions of the script

[Email protected] ~]# chmod +x/usr/lib64/nagios/plugins/check_disk.sh

3. Edit/etc/nagios/nrpe.cfg, add custom scripts

[Email protected] ~]# vim/etc/nagios/nrpe.cfg

command[check_disk]=/usr/lib64/nagios/plugins/check_disk.sh

4. Restart Nrpe Service

[Email protected] ~]#/etc/init.d/nrpe restart

Service side

5. Check if the script is running correctly

[email protected] ~]#/usr/lib64/nagios/plugins/check_nrpe-h 192.168.219.128-c check_disk

/OK 26% 13g/dev/shm ok 0% 242m/boot OK 8% 426M

Explanatory notes:

If normal, it will output a row of disk detection data, or may be error.

# # # # #错误 #####

[Email protected] ~]#/usr/lib64/nagios/plugins/check_nrpe-h 192.168.153.129-c check_disk

Nrpe:unable to read output

#############

Note: The reason is that the client script does not have permission to modify

6. Add the appropriate service

[Email protected] ~]# CD/ETC/NAGIOS/CONF.D

[Email protected] conf.d]# vim 192.168.219.128.cfg

Define Service{

Use Generic-service

HOST_NAME 192.168.219.128

Service_description Check_disk

Check_command Check_nrpe!check_disk

Max_check_attempts 5

Normal_check_interval 1

}

Note: Also check if there are any Check_nrpe in/etc/nagios/object/commands.cfg.

7. Restart the Nagios service and start the HTTP service

[Email protected] conf.d]#/etc/init.d/nagios restart

[[email protected] conf.d]#/etc/init.d/httpd start

8. Visit the browser to view

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Nagios Custom Monitoring System disk script