由 Cloudflare 擔任 CDN 設定 log 顯示用戶實際 IP (Apache) [Jonathan's Wiki 筆記]

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====== 由 Cloudflare 擔任 CDN 設定 log 顯示用戶實際 IP (Apache) ======
  * 如果是 Nginx 可以參考 [[nginx_proxy_real_ip]]
  * 設定環境 : Debian GNU/Linux 10

===== 設定方式 =====
  - 使用 root 權限操作 <cli>sudo -i</cli>
  - 啟動 remoteip <cli>sa2enmod remoteip</cli>
  - 更新 000-default.conf 設定, 加入 RemoteIPHeader CF-Connecting-IP<cli>vi /etc/apache2/sites-available/000-default.conf</cli><file>
:
        # modules, e.g.
        #LogLevel info ssl:warn

        RemoteIPHeader CF-Connecting-IP
        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        # For most configuration files from conf-available/, which are
:
</file>
  - 設定 Cloudflare 的 IP <cli>vi /etc/apache2/conf-available/remoteip.conf</cli><file>
RemoteIPHeader CF-Connecting-IP
RemoteIPTrustedProxy 173.245.48.0/20
RemoteIPTrustedProxy 103.21.244.0/22
RemoteIPTrustedProxy 103.22.200.0/22
RemoteIPTrustedProxy 103.31.4.0/22
RemoteIPTrustedProxy 141.101.64.0/18
RemoteIPTrustedProxy 108.162.192.0/18
RemoteIPTrustedProxy 190.93.240.0/20
RemoteIPTrustedProxy 188.114.96.0/20
RemoteIPTrustedProxy 197.234.240.0/22
RemoteIPTrustedProxy 198.41.128.0/17
RemoteIPTrustedProxy 162.158.0.0/15
RemoteIPTrustedProxy 104.16.0.0/12
RemoteIPTrustedProxy 172.64.0.0/13
RemoteIPTrustedProxy 131.0.72.0/22
RemoteIPTrustedProxy 2400:cb00::/32
RemoteIPTrustedProxy 2606:4700::/32
RemoteIPTrustedProxy 2803:f800::/32
RemoteIPTrustedProxy 2405:b500::/32
RemoteIPTrustedProxy 2405:8100::/32
RemoteIPTrustedProxy 2a06:98c0::/29
RemoteIPTrustedProxy 2c0f:f248::/32
</file>
  - 檢查設定格是是否有異常 <cli>apache2ctl configtest</cli>
  - 重新啟動 apache <cli>systemctl restart apache2</cli>

===== 參考網址 =====
  * https://support.cloudflare.com/hc/en-us/articles/200170786-Restoring-original-visitor-IPs

{{tag>Cloudflare proxy realip apache}}