c# - Asp.net Core 获取客户端的远程 IP 总是返回 127.0.0.1

Question

我的环境: Ubuntu 18.04、Asp.net Core 2.1、Nginx

我关注了this教程。 我在 Startup.cs 中添加了这段代码:

app.UseForwardedHeaders(new ForwardedHeadersOptions
{
    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});

我配置我的 Nginx 配置:

listen *:443 ssl http2;

location / {
        proxy_pass https://localhost:6001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection keep-alive;
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        proxy_set_header X-Forwarded-Proto-Version $http2;
        client_max_body_size 32m;
        keepalive_timeout 200;
        send_timeout 20;
        client_body_timeout 50;
        proxy_set_header  X-Forwarded-For $remote_addr;
    }

我通过以下方式获取远程 IP:

var ip = HttpContext.Connection.RemoteIpAddress?.ToString();

但它总是从任何 IP 返回 127.0.0.1。

Answer 1

我个人不得不手动获取 header 值。这是由于云设置。也许这会对您有所帮助。

if (Request.Headers.TryGetValue("X-Forwarded-For", out var forwardedIps))
    senderIpv4 = forwardedIps.First();