利用DDoS Deflate防范小量DDCC攻击
DDoS Deflate这款软件可以防范小量DDoS和CC攻击，而且它占用的时间不多，推荐各位使用 。一、检查iptables是否在运行service iptables statusSSH执行以上命令，若提示“iptables: Firewall is not running.”表示iptables未运行，需要执行“service iptables start”运行iptables。详情可参考：《iptables防火墙的基本应用》。二、安装DDoS Deflate1、下载wgethttp://soft.kwx.gd/security/ddos-Deflat.sh2、设置权限并运行脚本chmod +x ddos-Deflat.sh #设置为755权限./ddos-Deflat.sh这时脚本会自动下载并安装。若提示类似于“免责声明”等英文字样，按“q”键或任意键即可退出。三、设置DDoS Deflate1、修改指定文件vi /usr/local/ddos/ddos.conf2、根据以下相关说明设置##### Paths of the script and other filesPROGDIR="/usr/local/ddos"PROG="/usr/local/ddos/ddos.sh"IGNORE_IP_LIST="/usr/local/ddos/ignore.ip.list"//IP白名单文件CRON="/etc/cron.d/ddos.cron" //定时执行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 effectFREQ=1 //检查网络时间间隔，单位为分钟##### How many connections define a bad IP? Indicate that below.NO_OF_CONNECTIONS=150 //单个IP最大连接数，若超过则执行规则，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 mailsEMAIL_TO="root" //当IP被屏蔽时给指定邮箱发送邮件，若不使用则在前面加“#”屏蔽##### Number of seconds the banned ip should remain in blacklist.BAN_PERIOD=600 //禁用IP时间，默认600秒3、保存文件即可生效
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