NGINX 499 Error

September 10th, 2009

I got this error when trying to use NGINX as a proxy, setting the http_host header like this:

    location / {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_connect_timeout 5;

Everything worked fine except when clients would send a request without a host field set.

This happened with a few clients whose job it was to test the server and make sure it ran properly, like monit. To fix the issue, I create a specific location for the test target:

    location = /test_target.html {
        root /var/www/public;
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