监控网卡故障，重启网卡：https://www.cnblogs.com/luckyall/p/8094366.htmlvi check_network.sh #!/bin/bashdate="`date '+%Y-%m-%d %H:%M:%S'`"ip="173.208.x.x"nic="eth0"lost_rate=`ping -c 8 -w 8 $ip | grep 'packet loss' \| awk -F'packet loss' '{ print $1 }' \| awk '{ print $NF }' | sed 's/%//g'`if [ $lost_rate -eq 0 ]thenecho "network_ok $date $ip $nic" >>/root/network_ok.logelif [ $lost_rate -le 100 ]then#echo "network_error $date $ip $nic" //输出到窗口，因为不需要所以屏蔽了#elseecho "network_error $date $ip $nic" >>/root/network_error.logservice network restartfi chmod +x check_network.sh然后在计划任务里添加*/3 * * * * /bin/sh /opt/check_network.sh