Nginx reverse proxy node. js Get Client IP

Using Nginx as a reverse proxy for the node. JS program, there is a problem: the client IP that gets in the program is always 127.0.0.1

What if you want to get the real client IP changed?

First, configure the Nginx reverse proxy Proxy_set_header

server {       listen       ;       server_name  chat.luckybing.top;        / {            proxy_set_header Host $host;            Proxy_set_header X-real-IP $remote _addr;            Proxy_set_header REMOTE-HOST $remote _addr;            Proxy_set_header X-forwarded-for$proxy _add_x_forwarded_for;            Proxy_pass http://127.0.0.1:4000;         }    }

In this case, the Nginx does the reverse proxy will write the client's head information into the requested head

Second, the Node.js+express program to obtain the client real IP

With req.headers[' x-forwarded-for ' | | req.headers[' X-real-ip ') to get the client IP

Note: If you still use Req.connection.remoteAddress to obtain the IP, we find that the 127.0.0.1 is obtained.

Nginx reverse proxy node. js Get Client IP