> tcp_count.txtecho `date +"%F %H:%M:%S"` "TCP-LISTEN" `netstat -anotp|grep "LISTE..._定时任务监控tcp连接情况">
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1. 编写监控脚本 tcp_statistics.sh
echo `date +"%F %H:%M:%S"` "TCP-ALL" `netstat -anotp |awk ‘/tcp/ {print $6}‘|wc -l` >> tcp_count.txt
echo `date +"%F %H:%M:%S"` "TCP-LISTEN" `netstat -anotp|grep "LISTEN" |wc -l` >>tcp_count.txt
echo `date +"%F %H:%M:%S"` "TCP-ESTABLISHED" `netstat -anotp | grep "ESTABLISHED" |wc -l ` >> tcp_count.txt
echo `date +"%F %H:%M:%S"` "TCP_TIME_WAIT" `netstat -anotp |grep "TIME_WAIT" |wc -l ` >> tcp_count.txt
echo `date +"%F %H:%M:%S"` "TCP_CLOSE_WAIT" `netstat -anotp |grep "CLOSE_WAIT" |wc -l` >> tcp_count.txt
2. 更改文件权限
chmod 777 tcp_statistics.sh
3. 加入定时任务
crontab -e
*/1 * * * * sh /root/tcp_statistics.sh
3. 重启定时服务
service crond restart
原文:http://www.cnblogs.com/wenchunl/p/6478880.html
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