ddosfilter.net | Layer7 DOS Protection

<?php
// Coded by DSTAT | Instagram: @DDoS_Filter
// Public release of layer7.php from http://ddosfilter.net/
//*********************************************************************************
// In the command line type:
// crontab -e
// Paste this into the crontab and save: (Change directory to match your setup.)
//
// */1 * * * * > /var/www/html/conns.txt
// 0 */1 * * * > /var/www/html/blacklist.txt
//
// Create files: blacklist.txt and conns.txt and put them in the layer7 directory.
// IMPORTANT! Set both files permissions to 646.
//
// To protect a page with layer7.php add this code to the top of your pages:
//
// require '/var/www/html/layer7.php';
/*

Copyright (c) <2019> <@DDoS_Filter>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
/**********************************************************************************/

$A = '/var/www/html/';                      // Full path to layer7 files.
$B = 'DOS Protection by @DDoS_Filter';      // Page title when displaying layer7.php.
$C = 10;                                    // SETS MAX REQUESTS PER MINUTE LIMIT.

if (isset($_SERVER['HTTP_CF_CONNECTING_IP'])) { $D = $_SERVER['HTTP_CF_CONNECTING_IP']; } else { $D = $_SERVER['REMOTE_ADDR']; } $E = file_get_contents($A.'blacklist.txt'); if (strpos($E, $D) !== false) { die('<html><head><title>'.$B.'</title></head><body><center><h1>Your IP is temporarily blacklisted.</h1><p>DOS Protection by @DDoS_Filter<br>http://ddosfilter.net/</p></center></body></html>'); } file_put_contents($A.'conns.txt',$D."\n", FILE_APPEND); $H = 0; if ($F = fopen($A.'conns.txt', 'r')) { while (!feof($F)) { $G = fgets($F); if ($D."\n" == $G) { $H++; if ($H == $C) { fclose($F); file_put_contents($A.'blacklist.txt',$D."\n", FILE_APPEND); die('<html><head><title>'.$B.'</title></head><body><center><h1>Your IP ('.$D.') has been temporarily blacklisted. Please try again later.</h1><p>DOS Protection by @DDoS_Filter<br>http://ddosfilter.net/</p></center></body></html>'); }}} fclose($F); } ?>