Iptablesddos/cc automatic shielding script

Recently, CC (a type of DDOS) frequently interferes with each other and shares an iptables anti-DDOS script. Run crond once every minute. ############## KILLDDOS ############### iptables_log/data/logs/iptables_conf.log ### iptables: configure the export path, can be arbitrarily modified # CC (DDOS) is frequently disturbed and shared IptablesScripts that shield DDOS attacks.
Run crond once every minute.

############## Kill ddos ##############
Iptables_log = "/data/logs/iptables_conf.log"
### Iptables configuration export path, which can be modified as needed ###
########################################
Status = 'netstat-na | awk' $5 ~ /[0-9] +: [0-9] +/{print $5} '| awk-F ": "-- '{print $1}' | sort-n | uniq-c | sort-n | grep-v 127.0.0.1 | tail-n 1'
NUM = 'echo $ status | awk' {print $1 }''
IP = 'echo $ status | awk' {print $2 }''
Result = 'echo "$ NUM> 200" | bc'
### If the number of concurrent connections exceeds 200, kill it! ###
If [[$ result = 1]
Then
Echo IP: $ IP is over $ NUM, ban it!
/Sbin/iptables-a input-s $ IP-j DROP
Fi
########################################
Iptables-save >$ {iptables_log}
### Output the current iptable configuration as a log ###
########################################

Some friends pointed out that "??? Ben ???? Pour the values of tail-n 1 and grep-v127.0.0.1, no? T some affection? R ?? Jain? What kind of insurance does Huang Weimei copy ?? Remote planting? What is the copy of malaria? Br/>