当我们使用 nginx 代理转发服务后，会发现我们无法获取客户端的真实ip地址，从而无法获取客户端的地理位置等信息。
1、原始配置文件如下
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { listen 80; server_name localhost; location / { root html; index index.html index.htm; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } }
2、配置转发后
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { listen 80; server_name localhost; location / { root html; index index.html index.htm; } # 代理转发 location /api/{ proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header REMOTE-HOST $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Public-Network-URL http://$http_host$request_uri; proxy_pass http://localhost:8080/; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } }
这样，我们就将客户端的头部信息一起转发过去，就能获取用户的真实 IP 地址了。
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