ProGet Package Download Statistics IP when behind Load Balancer

[Ashley]

Hi,

We are running 2x ProGet servers in High Availability behind a load balancer. We are only seeing the load balancer IP on the package download statistics in ProGet.

We have enabled X-Forwarded-For on the load balancer to forward on the Client-IP but this has had not had any impact. Is there another header value we should be sending? Apologies if this is documented somewhere, I couldn't find it!

Thanks,
Ashely

[atripp]

Hi @Ashley ,

It sounds like you're definitely looking in the right place / setting the right configuration. X-Forwarded-For should do the trick, but something as silly as a typo (which I've done several times) will make it not work.

Here are the settings we recommend:

   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto $scheme;
   proxy_set_header X-Forwarded-Host $http_host;
   proxy_set_header X-Forwarded-Port $server_port;

And as an FYI, here is the code we use to get the ClientIP adddress.

public static string GetClientIPAddress(this AhHttpRequest request)
{
    ArgumentNullException.ThrowIfNull(request);

    var forwardedFor = request.Headers["X-Forwarded-For"];
    if (!string.IsNullOrWhiteSpace(forwardedFor))
    {
        var ips = forwardedFor.Split(',');
        var clientIp = ips.FirstOrDefault();
        if (!string.IsNullOrWhiteSpace(clientIp))
            return stripIpv4OverIpv6(clientIp.Trim().Truncate(50)!);
    }

    return stripIpv4OverIpv6((request.NativeRequest?.HttpContext?.Connection?.RemoteIpAddress?.ToString() ?? request.UserHostAddress).Truncate(50)!);

    static string stripIpv4OverIpv6(string ip)
    {
        if (ip.StartsWith("::ffff:") && ip.Contains('.'))
            return ip["::ffff:".Length..];
        return ip;
    }
}

Although I think the stripIpv4OverIpv6 bits may be relatively new.

Thanks,
Alana