When the user registers and submits pictures, the IP address obtained in the background is incorrect

[淇云博客]

大家好，我是但是图床站点使用了中国境内的CDN，为了加速网站，图床后台获取的用户ip不是，显示CDN的节点ip，不是用户的真实ip，请问有什么办法可以解决吗？



请看这是上传者的ip地址，不是真实的，而是CDN节点ip，下图才是我的真实IP

 

[JakeSully]

Could possible be due to them using proxy or VPN, so when they upload they hide ip first then upload and then un-hide their ip so visitor ip is real ip but images uploaded are logged from their VPN incase they are uploading illegal content, so if for example the owner of the site decides to report it to local law enforcement with edivence then you will be giving a IP leading to VPN server instead of real persons ip and either you or police can bind the real ip as anything todo with ip logged on uploaded image.

This is usualy a nasty way todo to avoid getting caught by uploading illegal or abusive content such as CSAM or anything else that acts as illegal by the law.

Or

it can be if you are using nginx web as proxy server it can cause the server ip to be logged as visitors ip or uploader as well. It has happened to me before.

Last by least

It also can be if they are on a mobile data subscription and uploading it, they may get new ip now and then when swaping mobile antenna connection so that might be reason as well.

 

[mrladeia]

You must configure nginx/apache correctly to capture the real ip.

Your CDN probably provides the source IPs so nginx can detect when to capture the real ip.

Cloudflare example: https://www.cloudflare.com/pt-br/ips/

Chevereto DOCS:

🪶 Web Server | Chevereto V4 docs

Self-hosted media hosting

v4-docs.chevereto.com

 

[armory]

Using ngx_http_realip_module in NGINX.

Add the following code to your NGINX config.
Set your CDN IP range, and change the X-Forwarded-For to something else if your CDN has specific headers.

set_real_ip_from  192.168.1.0/24;
set_real_ip_from  192.168.2.1;
real_ip_header    X-Forwarded-For;
real_ip_recursive on;