Detailed explanation of how to prevent the dedecms website from being attacked by DDos-DEDECMS-php.cn

Detailed explanation of how to prevent the dedecms website from being attacked by DDos

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Release： 2019-11-16 09:24:43

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This article mainly introduces relevant information on how to prevent DDos attacks on the dedecms website. The editor thinks it is quite good, so I will share it with you now and give it as a reference.

Detailed explanation of how to prevent the dedecms website from being attacked by DDos

Step one: Enter the background, system-》Add new variable Variable name: cfg_anquan_cc

Variable type: Boolean (Y /N) (Recommended learning: dedecms tutorial)

Parameter description: Whether to enable anti-CC attacks:

Variable value: Y

Step 2: Edit, /member/config.php and add code under require_once(DEDEINC.'/dedetemplate.class.php');

if($cfg_anquan_cc == &#39;Y&#39;){<br/>//php防CC攻击 在3秒内连续刷新页面5次以上将指向本机 //www.jb51.net/404.htm<br/> <br/>$P_S_T = $t_array[0] + $t_array[1];<br/>$timest amp = time();<br/>session_start();<br/>$ll_nowtime = $timestamp ;<br/>if (session_is_registered(&#39;ll_lasttime&#39;)){<br/>$ll_lasttime = $_SESSION[&#39;ll_lasttime&#39;];<br/>$ll_times = $_SESSION[&#39;ll_times&#39;] + 1;<br/>$_SESSION[&#39;ll_times&#39;] = $ll_times;<br/>}else{<br/>$ll_lasttime = $ll_nowtime;<br/>$ll_times = 1;<br/>$_SESSION[&#39;ll_times&#39;] = $ll_times;<br/>$_SESSION[&#39;ll_lasttime&#39;] = $ll_lasttime;<br/>}<br/>if (($ll_nowtime - $ll_lasttime)<3){<br/>if ($ll_times>=5){<br/>header(sprintf("Location: %s",&#39;//www.jb51.net/404.htm&#39;));<br/>exit;<br/>}<br/>}else{<br/>$ll_times = 0;<br/>$_SESSION[&#39;ll_lasttime&#39;] = $ll_nowtime;<br/>$_SESSION[&#39;ll_times&#39;] = $ll_times;<br/>}<br/>}<br/>

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