#netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n

#wget http://www.inetbase.com/scripts/ddos/install.sh //下载DDoS deflate

#chmod  install.sh //添加权限

#./install.sh //执行

##### Paths of the script and other files

PROGDIR="/usr/local/ddos"

PROG="/usr/local/ddos/ddos.sh"

IGNORE_IP_LIST="/usr/local/ddos/ignore.ip.list"  //IP地址白名单

CRON="/etc/cron.d/ddos.cron"    //定时执行程序

APF="/etc/apf/apf"

IPT="/sbin/iptables"

##### frequency in minutes for running the script

##### Caution: Every time this setting is changed, run the script with --cron

#####          option so that the new frequency takes effect

FREQ=1   //检查时间间隔，默认1分钟

##### How many connections define a bad IP? Indicate that below.

NO_OF_CONNECTIONS=150     //最大连接数，超过这个数IP就会被屏蔽，一般默认即可

##### APF_BAN=1 (Make sure your APF version is atleast 0.96)

##### APF_BAN=0 (Uses iptables for banning ips instead of APF)

APF_BAN=1        //使用APF还是iptables。推荐使用iptables,将APF_BAN的值改为0即可。

##### KILL=0 (Bad IPs are'nt banned, good for interactive execution of script)

##### KILL=1 (Recommended setting)

KILL=1   //是否屏蔽IP，默认即可

##### An email is sent to the following address when an IP is banned.

##### Blank would suppress sending of mails

EMAIL_TO="root"   //当IP被屏蔽时给指定邮箱发送邮件，推荐使用，换成自己的邮箱即可

##### Number of seconds the banned ip should remain in blacklist.

BAN_PERIOD=600    //禁用IP时间，默认600秒，可根据情况调整

netstat -ntu | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -nr > $BAD_IP_LIST

netstat -ntu | awk ‘{print $}’ | cut -d: -f1 | sed -n ‘/[-]/p’ | sort | uniq -c | sort -nr > $BAD_IP_LIST