Linux下屏蔽的多种方法：iptables、nginx、apache、php、.htaccess

iptables

封停一个IP
iptables -I INPUT -s 192.168.0.1 -j DROP
解封一个IP
iptables -D INPUT -s 192.168.0.1 -j DROP

nginx

deny 192.168.0.1; 

apache

<Directory  "你的网站根目录">
    Options Indexes FollowSymLinks
    AllowOverride None
    Order  deny,allow
    Deny from 192.168.0.1  
</Directory>

<?php
$ip = $_SERVER['REMOTE_ADDR'];
if ($ip == "192.168.0.1") {
    die("ip被屏蔽了");
}

Order Allow,Deny
Allow from all
Deny from 192.168.0.1