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46 lines
947 B
Markdown
46 lines
947 B
Markdown
## Nginx 反代未透传客户端 IP 导致服务端日志全量变为 127.0.0.1
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### 现象
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后端解析IP后全量变成 `127.0.0.1`。
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### 原因
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后端解析IP的顺序是
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```
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X-Forwarded-For → X-Real-IP → RemoteAddr
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```
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**Nginx**转发至后端服务的 location 块缺少`proxy_set_header`指令：
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```nginx
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location /olive3 {
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proxy_pass http://127.0.0.1:55430;
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proxy_connect_timeout 300s;
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proxy_send_timeout 300s;
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proxy_read_timeout 300s;
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}
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```
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### 修复
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在缺失的 location 块中补充 header 透传：
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```nginx
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location /api {
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_pass http://127.0.0.1:55430;
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# ... 其他配置不变
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}
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```
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- `$proxy_add_x_forwarded_for`：将客户端真实 IP 追加到已有 `X-Forwarded-For` 尾部，而非覆盖
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- `$remote_addr`：Nginx 直接看到的对端地址，作为 `X-Real-IP` 传递
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