Restoring original visitor's ip with CloudFlare and Nginx

by OldFart 7 years ago

GNU/Linux ◆ xterm ◆ bash 2772 views

File is available (until it isn’t anymore) at http://bit.ly/ngx-cfips

Sample output:

# # CloudFlare ips generated on 2016.10.22 from # https://www.cloudflare.com/ips-v4 # https://www.cloudflare.com/ips-v6 # set_real_ip_from 103.21.244.0/22; set_real_ip_from 103.22.200.0/22; set_real_ip_from 103.31.4.0/22; set_real_ip_from 104.16.0.0/12; set_real_ip_from 108.162.192.0/18; set_real_ip_from 131.0.72.0/22; set_real_ip_from 141.101.64.0/18; set_real_ip_from 162.158.0.0/15; set_real_ip_from 172.64.0.0/13; set_real_ip_from 173.245.48.0/20; set_real_ip_from 188.114.96.0/20; set_real_ip_from 190.93.240.0/20; set_real_ip_from 197.234.240.0/22; set_real_ip_from 198.41.128.0/17; set_real_ip_from 199.27.128.0/21; set_real_ip_from 2400:cb00::/32; set_real_ip_from 2405:8100::/32; set_real_ip_from 2405:b500::/32; set_real_ip_from 2606:4700::/32; set_real_ip_from 2803:f800::/32; set_real_ip_from 2a06:98c0::/29; set_real_ip_from 2c0f:f248::/32; ` real_ip_header CF-Connecting-IP;` ` #real_ip_header X-Forwarded-For;` # Upon including this file into nginx configuration, following variables # $http_cf_connecting_ip and $http_x_forwarded_for will become available. # References: https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx-

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You can download this recording in asciicast v1 format, as a .json file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 90192.json

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/90192.json',
      document.getElementById('player'),
      { cols: 173, rows: 43 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't offer GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed run the following command to create GIF file:

agg https://asciinema.org/a/90192 90192.gif

Or, if you already downloaded the recording file:

agg 90192.json 90192.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.