Kepiye server situs web bisa nyegah serangan CC/ddos? php penyebaran kode anti-serangan

Ringkesan artikel ikiWordPressSerangan anti-CC, metode serangan DDOS.

Tujuane nulis artikel iki amarga akehInternet Marketingnggunakake personelsitus web WordPress,Situs web asring kena serangan CC/DDOS, nyebabake server situs web kakehan beban lan alon mbukak, nyebabakeE-commerceSitus webSEOPeringkat

Saiki, serangan CC / serangan DDOS utamane nelpon N pirang-pirang IP, asring refresh kaca tartamtu saka situs web, supaya panjalukan server terus-terusan, lan pungkasane nyebabake server overloaded lan mudhun.

Server WordPress anti-CC, panyebaran kode serangan ddos

• Fungsi utama kode ing ngisor iki yaiku ngarahake alamat IP sing "nyegerake kaca luwih saka kaping 3 utawa luwih terus-terusan sajrone 5 detik" menyang alamat IP lokal 127.0.0.1.
• Cara iki bakal luwih apik kanggo nyegah serangan CC lan DDOS.

Situs web WordPress anti-CC/ddos, nyegah kode refresh angkoro

Tambah kode ing ngisor iki menyang file function.php saka tema WordPress saiki▼

// Come form https://www.chenweiliang.com/
// WordPress防CC攻击代码,防恶意刷IP
session_start(); //开启session
$timestamp = time();
$ll_nowtime = $timestamp ;
//判断session是否存在 如果存在从session取值，如果不存在进行初始化赋值
if ($_SESSION){
$ll_lasttime = $_SESSION['ll_lasttime'];
$ll_times = $_SESSION['ll_times'] + 1;
$_SESSION['ll_times'] = $ll_times;
}else{
$ll_lasttime = $ll_nowtime;
$ll_times = 1;
$_SESSION['ll_times'] = $ll_times;
$_SESSION['ll_lasttime'] = $ll_lasttime;
}
//现在时间-开始登录时间 来进行判断 如果登录频繁 跳转 否则对session进行赋值
if(($ll_nowtime - $ll_lasttime) < 3){
if ($ll_times>=5){
header("location:http://127.0.0.1");
exit;
}
}else{
$ll_times = 0;
$_SESSION['ll_lasttime'] = $ll_nowtime;
$_SESSION['ll_times'] = $ll_times;
}

Situs web anti-CC, kode serangan ddos ​​(non-WordPress)

yen orasitus web WordPresskanca, sijine kode ing ngisor iki ing header, efek bakal luwih apik ▼

<?php
// Come form https://www.chenweiliang.com/
// WordPress防CC攻击代码,防恶意刷IP
session_start(); //开启session
$timestamp = time();
$ll_nowtime = $timestamp ;
//判断session是否存在 如果存在从session取值，如果不存在进行初始化赋值
if ($_SESSION){
$ll_lasttime = $_SESSION['ll_lasttime'];
$ll_times = $_SESSION['ll_times'] + 1;
$_SESSION['ll_times'] = $ll_times;
}else{
$ll_lasttime = $ll_nowtime;
$ll_times = 1;
$_SESSION['ll_times'] = $ll_times;
$_SESSION['ll_lasttime'] = $ll_lasttime;
}
//现在时间-开始登录时间 来进行判断 如果登录频繁 跳转 否则对session进行赋值
if(($ll_nowtime - $ll_lasttime) < 3){
if ($ll_times>=5){
header("location:http://127.0.0.1");
exit;
}
}else{
$ll_times = 0;
$_SESSION['ll_lasttime'] = $ll_nowtime;
$_SESSION['ll_times'] = $ll_times;
}
?>

• Kajaba iku, paramèter ing ndhuwur bisa diowahi, lan paramèter bisa diowahi kaya sing dibutuhake kanggo asil sing luwih apik.