Apache 2.4 : How to allow a specific url ?

如果你有個網站是不允許外部 ip 連入
只永許特定的 ip 連入
這時候可以利用 SetEnv 環境變數的方式來達到目的
這個方法僅適用於 Apache 2.4 的版本
之前的版本可參考參考資源裡面的設定

以下的範例是說明
開放 https://xxx.your.domain/exceed/xxx 給外部的意思
不受限於 Require all denied
注意 SetEnv 最後面的參數跟 Require not 後面的參數要一致

 <VirtualHost *:443>  
   DocumentRoot "/var/www/html/xxx"  
   ServerName xxx.your.domain  
   CustomLog /var/log/httpd/xxx.your.domain-access.log combined  
   ErrorLog /var/log/httpd/xxx.your.domain-error.log

   SSLEngine On  
   SSLCertificateFile /etc/letsencrypt/live/xxx.your.domain/cert.pem  
   SSLCertificateKeyFile /etc/letsencrypt/live/xxx.your.domain/privkey.pem  
   SSLCertificateChainFile /etc/letsencrypt/live/xxx.your.domain/fullchain.pem

   <Directory "/var/www/html/xxx">  
    AllowOverride All  
    Require all denied  
    Require ip 1.2.3.4  
    Require ip 5.6.7.8  
    # allow specific url  
    SetEnvIf Request_URI "^/exceed/$" exceed_url  
    <RequireAny>  
     <RequireAll>  
      Require not env exceed_url  
      Require all granted  
     </RequireAll>  
    </RequireAny>  
   </Directory>  
 </VirtualHost>  

參考資源：
System: Access authorization in Apache 2.4