網站限制IP存取

編輯apache2.conf
在ubutnu server下
sudo  vim /etc/apache2/apache2.conf
(在centos下是vim /etc/httpd/conf/httpd.conf）
找到網站目錄，例如：網站目錄是在/var/www資料夾中
<Directory /var/www/>
        Options Indexes FollowSymLinks
        AllowOverride None
</Directory> 
apache 2.4加入：
Require all denied
Require all granted
Require host xxx.com
Require ip 192.168.1 192.168.2
Require local

apache2.2加入：

        Order deny,allow
        Deny from all
        Allow from 163.20.
        Allow from 10.
變成
<Directory /var/www/>
        Options Indexes FollowSymLinks
        AllowOverride None
        Order deny,allow
        Deny from all
        Allow from 10.
        Allow from 163.20.

</Directory>
或是

<Directory /var/www/>
        Options Indexes FollowSymLinks
        AllowOverride None

      Require all denied
      Require ip 10.0.0.0/8 163.20.xx.0/24
      Require host xxx.ntpc.edu.tw

</Directory>
重新啟動apache
sudo /etc/init.d/apache2 restart