shell监控脚本-监控web server
注意:请先参考 shell监控脚本-准备工作,监控脚本在 rhel5 下测试正常，其它版本的linux 系统请自行测试
#监控web server
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cat chk_web.sh
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#!/bin/bash
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#
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#script_name:chk_web.sh
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#check web server 80 port
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#
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#last update 20130320 by dongnan
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#bbs# http://bbs.ywwd.net/
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#blog# http://dngood.blog.51cto.com
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#
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#curl -IL http://10.0.100.75/check.html 2>&1 | grep '200'
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#HTTP/1.1 200 OK
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#别忘了在你的web服务器创建一个check.html
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#variables
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curl=/usr/bin/curl
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usleep=/bin/usleep
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echo=/bin/echo
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sh_dir=/root/sh/
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crondir=${sh_dir}crontab
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check_count=5 #故障后检查次数
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fault_count=4 #故障次数大于(等于),则认为不可用
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options='--connect-timeout 1 -IL -A "check_www"'
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source ${sh_dir}CONFIG
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hosts="$LINUX_WEB_HOSTS"
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#main
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test -e "${crondir}/log" || mkdir -p "${crondir}/log"
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#主循环遍历机器
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for HOST in $hosts ;do
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flag_file=$crondir/log/"$HOST".web
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log=$crondir/log/web_error.log
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#curl真
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if $curl $options http://"$HOST"/check.html 2>&1 | grep '200' > /dev/null;then
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#flag真,解除报警
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if [ -f $flag_file ];then
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#sms
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#for mobile in $MOBILES; do
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#$echo "cdn_www ok" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
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#$echo "cdn_www_index.html ok"
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#done
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#email
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for mail in $MAILS;do
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echo "$HOST 80 port ok" | mail -s "$HOST 80 port ok" $mail
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done
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#delete flag
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test -e "$flag_file" && rm -f "$flag_file"
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fi
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#curl假
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else
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#flag真，跳出循环(已报警)
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test -e $flag_file && continue
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check_failed=0
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#
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for((i=1;i<="$check_count";i++));do
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check_date=$(date '+ %F %T')
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#curl 值取反
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if ! $curl $options http://"$HOST"/check.html 2>&1 | grep '200' > /dev/null;then
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#变量加1
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((check_failed++))
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#error.log
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$echo "$(/bin/date +'%F %T') $HOST $check_failed fault" >> "$log"
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#使用微妙或者秒
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$usleep 300000 || sleep 1
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fi
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done
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#大(等)于fault_count发送报警
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if [ "$check_failed" -ge "$fault_count" ];then
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#sms
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#for mobile in $MOBILES;do
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#$echo "www_cdn_index.html error" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
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#/bin/date +'%F %T' && $echo "www_cdn_index.html error"
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#done
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#mail
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for mail in $MAILS;do
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echo "$HOST 80 port error" | mail -s "$HOST 80 port error" $mail
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done
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#log
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echo "$check_date $HOST web error" >> $log
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#flag
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$echo "cdn_www_index.html error" > "$flag_file"
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fi
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#主if结束
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fi
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#主循环结束
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done
#
结束
更多请：
linux 系统运维 37275208
vmware 虚拟化 166682360
本文转自 dongnan 51CTO博客，原文链接：http://blog.51cto.com/dngood/1163562
