CentOS nagios monitoring data center temperature

CentOS nagios monitoring data center temperature

In the IDC of your company, the air conditioner is badly used, and there is no linkage, no power-on and self-starting. Experienced the circuit switching locks at night. When you know it, it's just a boiler room.
This method uses the Switch Temperature to determine whether the air conditioner is powered off.
1. temperature value of the secondary CT interactive login Switch

[root@nagios opt]# cat 123.exp#!/usr/bin/expect -fset user userset passwd passwordspawn telnet 192.168.0.254expect "Username:"send -- "$user\r"expect "Password:"send -- "$passwd\r"expect ""send -- "dis env\r"expect ""send -- "quit\r"expect eof

2. Add a nagios monitoring script

[root@nagios opt]# cat /usr/local/nagios/libexec/check_temp#!/bin/bashexpect /opt/123.exp >/opt/123.logtemp=`awk '/hotspot/ {print $3}' /opt/123.log`STATE_OK=0STATE_WARNING=1STATE_CRITICAL=2STATE_UNKNOWN=3if [ "$#" == "4" ]then#Set variablesarg=${4}w=$2c=$4if [ $temp -ge $w -a $temp -lt $c ]thenecho "Warning :Room temperature $temp°C "exitstatus=$STATE_WARNINGelif [ $temp -ge $c ]thenecho "Critical :Room temperature $temp°C"exitstatus=$STATE_CRITICALelseecho "OK :Room temperature $temp°C."exitstatus=$STATE_OKfifiexit $exitstatus

3. Add command

[root@nagios opt]# tail -5 /usr/local/nagios/etc/objects/commands.cfg# 'check_temp' command definitiondefine command{command_name check_tempcommand_line $USER1$/check_temp -w $ARG1$ -c $ARG2$}

4. Modify nrpe. cfg

[root@nagios opt]# grep "temp" /usr/local/nagios/etc/nrpe.cfgcommand[check_temp]=/usr/local/nagios/libexec/check_temp -w 30 -c 33

5. Add a Monitoring Project

[root@nagios opt]# tail -6 /usr/local/nagios/etc/objects/localhost.cfgdefine service{use generic-servicehost_name localhostservice_description check_tempcheck_command check_nrpe!check_temp}

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