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Load Balancer forward client public IP address

Posted on April 11, 2017

How can I access the public IP address of the client behind a DO load balancer?

Does the load balancer send any header with this IMPORTANT info? Can’t find it in my $_SERVER info array :(

thanks!



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@inigo3b78cb3721646dd1c6241

If you use var_dump( $_SERVER ); are you not seeing X-Forwarded-For?

You’ll want to look for HTTP_X_ headers when it comes to fetching information coming from the LB, such as the proto (HTTP/HTTPS), port, and client IP.

HTTP_X_FORWARDED_PORT
HTTP_X_FORWARDED_PROTO
HTTP_X_FORWARDED_FOR

That’s what I initially though about, but there is nothing in phpinfo() in the $server section. Nothing like HTTP_X_FORWARDED

weird

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