nagios 监控内存和CPU，磁盘等使用情况

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于 2022-01-13 16:35:51 发布 · 2.5k 阅读

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#nagios

本文详细介绍如何使用Nagios监控Linux及Windows系统的各项指标，包括内存、CPU使用情况及服务状态等。通过具体步骤说明如何配置自定义脚本并整合进Nagios，实现远程监控。

一、

i.被监控机上监控内存使用情况，在被监控机上操作
cd /usr/local/nagios/libexec
vi check_mem.sh

#!/bin/bash

if [ "$1" = "-w" ] && [ "$2" -gt "0" ] && [ "$3" = "-c" ] && [ "$4" -gt "0" ]; then

        memTotal_b=`free -b |grep Mem |awk '{print $2}'`
        memFree_b=`free -b |grep Mem |awk '{print $4}'`
        memBuffer_b=`free -b |grep Mem |awk '{print $6}'`
        memCache_b=`free -b |grep Mem |awk '{print $7}'`

        memTotal_m=`free -m |grep Mem |awk '{print $2}'`
        memFree_m=`free -m |grep Mem |awk '{print $4}'`
        memBuffer_m=`free -m |grep Mem |awk '{print $6}'`
        memCache_m=`free -m |grep Mem |awk '{print $7}'`

        memUsed_b=$(($memTotal_b-$memFree_b-$memBuffer_b-$memCache_b))
        memUsed_m=$(($memTotal_m-$memFree_m-$memBuffer_m-$memCache_m))

        memUsedPrc=$((($memUsed_b*100)/$memTotal_b))


        if [ "$memUsedPrc" -ge "$4" ]; then
                echo "Memory: CRITICAL Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"
                $(exit 2)
        elif [ "$memUsedPrc" -ge "$2" ]; then
                echo "Memory: WARNING Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"
                $(exit 1)
        else
                echo "Memory: OK Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"
                $(exit 0)
        fi

else
        echo "check_mem v1.1"
        echo ""
        echo "Usage:"
        echo "check_mem.sh -w <warnlevel> -c <critlevel>"
        echo ""
        echo "warnlevel and critlevel is percentage value without %"
        echo ""
        echo "Copyright (C) 2012 Lukasz Gogolin (lukasz.g

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