Hi.

I've set up nginx as a front-end for apache with mod_rpaf.

My config (parts that are meaningful for this thread) is:

-------------------------------------------------------------------- http { proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr;

server { listen 80; server_name ~^www\.domain\.com$; location / { proxy_pass http://127.0.0.1:80; } } }

-------------------------------------------------------------------- This works fine. But now I need to bypass original incoming X-Forwarded-For without change if it equals to '1.2.3.4' or '2.3.4.5'.

I've tried to filter like this: if ($http_X-Forwarded-For = "1.2.3.4") { proxy_set_header X-Forwarded-For "1.2.3.4"; } but that didn't work. How do I evaluate incoming custom HTTP headers (those not having their own dedicated variables like $content_length and others) in config file?