Apache2 抓取 Load Balancer Client IP 的設定

Apache2 前面加上 Load Balancer (F5 Big IP LTM)，走得就類似 Reverse Proxy 的模式，會由 F5 將 X-Forwarded-For 轉送到 Apache，要怎麼設定格式才能跟原始 combined 一樣呢？

Apache2 抓取 Load Balancer Client IP 的設定

1. vim /etc/apache2/apache2.conf # 下述 combined_forwarded 可以直接換成 combined，原本的設定就都不需要更動

   LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined_forwarded
   CustomLog /var/www/project/log/access.log combined_forwarded

2. sudo apache2ctl configtest
3. sudo systemctl restart apache2

相關網頁

• Reflection: Client IP Filtering in Weblogic and Apache through Load Balancer (F5 Big IP LTM)
• F5 Big-IP, Apache logs and client IP

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