{"id":8512,"date":"2024-06-06T06:45:33","date_gmt":"2024-06-06T06:45:33","guid":{"rendered":"https:\/\/www.infinitivehost.com\/knowledge-base\/?p=8512"},"modified":"2024-06-06T06:45:35","modified_gmt":"2024-06-06T06:45:35","slug":"set-http_cf_connecting_ip-in-apache-server-config","status":"publish","type":"post","link":"https:\/\/www.infinitivehost.com\/knowledge-base\/set-http_cf_connecting_ip-in-apache-server-config\/","title":{"rendered":"Set HTTP_CF_CONNECTING_IP in Apache Server Config"},"content":{"rendered":"
<\/span> 2,441<\/span> Views<\/span><\/div>\n

Setting the HTTP_CF_CONNECTING_IP<\/code> header in an Apache HTTP server configuration involves using the mod_headers<\/code> module to set or modify the header value. The HTTP_CF_CONNECTING_IP<\/code> header is typically used with Cloudflare to pass the original client IP address to your server.<\/p>\n\n\n\n

Here\u2019s how you can configure it:<\/p>\n\n\n\n

    \n
  1. Enable the mod_headers<\/code> Module:<\/strong>
    Ensure that the mod_headers<\/code> module is enabled. You can enable it by running the following command:<\/li>\n<\/ol>\n\n\n\n
       sudo a2enmod headers<\/code><\/code><\/pre>\n\n\n\n
    Then, restart Apache to apply the changes:<\/p>\n\n\n\n
       sudo systemctl restart apache2<\/code><\/code><\/pre>\n\n\n\n
      \n
    1. Configure the Header in Your Apache Configuration File:<\/strong>
      You need to add the configuration to your Apache virtual host configuration file, which is usually located in \/etc\/apache2\/sites-available\/<\/code> for Debian-based distributions or \/etc\/httpd\/conf.d\/<\/code> for Red Hat-based distributions. Open your virtual host configuration file, for example:<\/li>\n<\/ol>\n\n\n\n
         sudo nano \/etc\/apache2\/sites-available\/000-default.conf<\/code><\/code><\/pre>\n\n\n\n
      Add the following lines inside the <VirtualHost><\/code> block:<\/p>\n\n\n\n
         <VirtualHost *:80>\n       ServerName yourdomain.com\n\n       # Other configurations...\n\n       # Set HTTP_CF_CONNECTING_IP header\n       <IfModule mod_headers.c>\n           RequestHeader set HTTP_CF_CONNECTING_IP \"%{HTTP:X-Forwarded-For}e\"\n       <\/IfModule>\n\n       # Other configurations...\n   <\/VirtualHost><\/code><\/code><\/pre>\n\n\n\n
      If you are using HTTPS, make sure to update the configuration in the corresponding SSL virtual host file, typically named something like default-ssl.conf<\/code>.<\/p>\n\n\n\n
        \n
      1. Restart Apache:<\/strong>
        After making these changes, restart Apache to apply the new configuration:<\/li>\n<\/ol>\n\n\n\n
           sudo systemctl restart apache2<\/code><\/code><\/pre>\n\n\n\n
        Explanation:<\/h3>\n\n\n\n
          \n
        • RequestHeader set:<\/strong> This directive is used to set the value of the HTTP_CF_CONNECTING_IP<\/code> header.<\/li>\n\n\n\n
        • “%{HTTP:X-Forwarded-For}e”:<\/strong> This extracts the X-Forwarded-For<\/code> header, which is set by Cloudflare and contains the original client IP address.<\/li>\n<\/ul>\n\n\n\n
          Example with SSL:<\/h3>\n\n\n\n
          If you are using HTTPS, you should update your SSL virtual host configuration file as well, for example:<\/p>\n\n\n\n
          sudo nano \/etc\/apache2\/sites-available\/default-ssl.conf<\/code><\/code><\/pre>\n\n\n\n
          And add:<\/p>\n\n\n\n
          <VirtualHost *:443>\n    ServerName yourdomain.com\n\n    # Other configurations...\n\n    # Set HTTP_CF_CONNECTING_IP header\n    <IfModule mod_headers.c>\n        RequestHeader set HTTP_CF_CONNECTING_IP \"%{HTTP:X-Forwarded-For}e\"\n    <\/IfModule>\n\n    # Other configurations...\n<\/VirtualHost><\/code><\/code><\/pre>\n\n\n\n
          After making these changes, restart Apache again:<\/p>\n\n\n\n
          sudo systemctl restart apache2<\/code><\/code><\/pre>\n\n\n\n
          By following these steps, you can set the HTTP_CF_CONNECTING_IP<\/code> header in your Apache HTTP server configuration, allowing you to correctly pass and use the original client IP address provided by Cloudflare.<\/p>\n","protected":false},"excerpt":{"rendered":"
          2,441 Views Setting the HTTP_CF_CONNECTING_IP header in an Apache HTTP server configuration involves using the mod_headers module to set or modify the header value. The HTTP_CF_CONNECTING_IP header is typically used with Cloudflare to pass the original client IP address to your server. Here\u2019s how you can configure it: Then, restart Apache to apply the changes: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[73],"tags":[],"class_list":["post-8512","post","type-post","status-publish","format-standard","hentry","category-cloudflare-cdn"],"_links":{"self":[{"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/posts\/8512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/comments?post=8512"}],"version-history":[{"count":1,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/posts\/8512\/revisions"}],"predecessor-version":[{"id":8513,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/posts\/8512\/revisions\/8513"}],"wp:attachment":[{"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/media?parent=8512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/categories?post=8512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infinitivehost.com\/knowledge-base\/wp-json\/wp\/v2\/tags?post=8512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}