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