DOS-Deflate防禦&減輕DDOS攻擊

五月 7, 2010 Linux(CentOS)相關

DOS-Deflate 網址:http://deflate.medialayer.com/

DOS-Deflate 可結合 iptables 或 APF 防火牆,協助管理員防禦&減輕拒絕服務攻擊(DDOS)問題

安裝

wget http://www.inetbase.com/scripts/ddos/install.sh

chmod 0700 install.sh

./install.sh

設定

vi /usr/local/ddos/ddos.conf

參數說明:

##### 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”   # 白名單
CRON=”/etc/cron.d/ddos.cron”
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

##### How many connections define a bad IP? Indicate that below.  # 連接數限制
NO_OF_CONNECTIONS=150

##### 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=0     # 使用 iptables

##### KILL=0 (Bad IPs are’nt banned, good for interactive execution of script)
##### KILL=1 (Recommended setting)
KILL=1

##### An email is sent to the following address when an IP is banned.   # 單IP連接數超過設定值後,將發郵件給指定的收件人
##### Blank would suppress sending of mails
EMAIL_TO=”root”

##### Number of seconds the banned ip should remain in blacklist.   # 設置被擋IP多少秒後移出黑名單
BAN_PERIOD=600

移除

wget http://www.inetbase.com/scripts/ddos/uninstall.ddos
chmod 0700 uninstall.ddos
./uninstall.ddos

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Comments (1)

 

  1. lv 說:

    DDOS攻擊常遇到