shell监控脚本-监控网络
shell监控脚本-监控网络注意:请先参考 shell监控脚本-准备工作,监控脚本在 rhel5/6 下测试正常，其它版本的linux 系统请自行测试
#监控网络
[*] cat chk_ping.sh
[*] #!/bin/bash
[*] #
[*] #script_name:chk_ping.sh
[*] #check network
[*] #
[*] #last update 20130320 by dongnan
[*] #bbs# http://bbs.ywwd.net/
[*] #blog# http://dngood.blog.51cto.com
[*] #lost
[*] # ping -f -c 20202.013.191.31
[*] #PING 202.013.191.31 (202.11.191.31) 56(84) bytes of data.
[*] #....................
[*] #--- 202.013.191.31 ping statistics ---
[*] #20 packets transmitted, 0 received, 100% packet loss, time 236ms
[*] #delay
[*] # ping -f -c 20 199.192.152.2
[*] #PING 199.192.152.2 (199.192.152.2) 56(84) bytes of data.
[*] #--- 199.192.152.2 ping statistics ---
[*] #20 packets transmitted, 20 received, 0% packet loss, time 227ms
[*] #rtt min/avg/max/mdev = 266.758/268.957/272.593/1.787 ms, pipe 20, ipg/ewma 11.959/269.829 ms
[*] #
[*] #variables
[*] ping=/bin/ping
[*] delay_limit=100
[*] loss_limit=20
[*] sh_dir=/root/sh/
[*] crondir=${sh_dir}crontab
[*] source ${sh_dir}CONFIG
[*] user=`id -u`
[*] hosts="$ALLHOSTS"
[*] #main
[*] #root权限
[*] if [ "$user" -ne 0 ];then
[*] echo "must root !!"
[*] exit 1
[*] fi
[*] #主循环遍历机器
[*] for HOST in $hosts ;do
[*] flag_ping_file="$crondir/log/$HOST.ping"
[*] error_log="$crondir/log/ping_error.log"
[*] #true
[*] if ! $ping -W 2 -f -c 10 $HOST > $crondir/log/ping.log 2>&1;then
[*] grep "packet loss" $crondir/log/ping.log >$crondir/log/ping.loss
[*] #返回值0,定义delay 与 loss 变量
[*] loss=`awk '{print $6}' $crondir/log/ping.loss | awk -F% '{print $1}'`
[*] #loss 大于规定限制，则发送报警邮件
[*] if [ "$loss" -ge "$loss_limit" ];then
[*] if [ ! -f $flag_ping_file ];then
[*] #sms
[*] #for mobile in $MOBILES;do
[*] #echo "Monitor to $HOST delay $delay'ms;$loss% packet loss" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
[*] #done
[*] for mail in $MAILS;do
[*] echo "Monitor to $HOST $loss% packet loss" | mail -s "$HOST lost" $mail
[*] done
[*] #log
[*] date +'%F %T' >>$error_log
[*] cat $crondir/log/ping.log >>$error_log
[*] #生成flag文件
[*] echo "$HOST network error" >$flag_ping_file
[*] fi
[*] fi
[*] #false
[*] else
[*] #loss 小于规定限制，则发送解除报警邮件
[*] if [ -f $flag_ping_file ];then
[*] #sms
[*] #for mobile in $MOBILES;do
[*] #echo "$HOST network ok"|/usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
[*] #done
[*] for mail in $MAILS;do
[*] echo "$HOST network ok" | mail -s "$HOST network ok" $MAILS
[*] done
[*] #delete flag
[*] rm -f $flag_ping_file
[*] fi
[*] #
[*] fi
[*] #
[*] done
结束
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linux 系统运维37275208
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